---
_id: '35645'
abstract:
- lang: eng
text: Poly(quinuclidin-3-yl methacrylate-co-divinylbenzene) microparticles having
porous as well as nonporous morphology and varying contents of quinuclidine functionality
were synthesized by distillation–precipitation polymerization. Further, the synthesized
microparticles were explored to catalyze the Baylis–Hillman reaction between 4-nitrobenzaldehyde
and acrylonitrile. Porous and nonporous microparticles functionalized with a catalytic
moiety with a loading of 70% (labeled as P70 and NP70) were employed to optimize
reaction parameters such as water content, solvent, and temperature for the Baylis–Hillman
reaction between 4-nitrobenzaldehyde and acrylonitrile. Using optimal conditions,
the catalytic efficiency of porous and nonporous microparticles at different feed
compositions was determined. Porous microparticles containing 70% of quinuclidine
(P70) displayed 100% conversion within 16 h at 50 °C, while nonporous microparticles
containing 70% of quinuclidine (NP70) displayed a relatively less catalytic conversion,
which is attributed to their lower surface area. Furthermore, the catalytic activity
of porous microparticles containing 70% of quinuclidine (P70) for the Baylis–Hillman
reaction involving a variety of aryl aldehyde derivatives was determined, where
the microparticles displayed impressive catalytic efficiency. In addition, the
reusability of the microparticles functionalized with a catalytic moiety was evaluated
for five cycles of catalytic reaction.
article_type: original
author:
- first_name: Amit
full_name: Kumar, Amit
last_name: Kumar
- first_name: Dirk
full_name: Kuckling, Dirk
id: '287'
last_name: Kuckling
- first_name: Leena
full_name: Nebhani, Leena
last_name: Nebhani
citation:
ama: Kumar A, Kuckling D, Nebhani L. Quinuclidine-Immobilized Porous Polymeric Microparticles
as a Compelling Catalyst for the Baylis–Hillman Reaction. ACS Applied Polymer
Materials. 2022;4(12):8996-9005. doi:10.1021/acsapm.2c01330
apa: Kumar, A., Kuckling, D., & Nebhani, L. (2022). Quinuclidine-Immobilized
Porous Polymeric Microparticles as a Compelling Catalyst for the Baylis–Hillman
Reaction. ACS Applied Polymer Materials, 4(12), 8996–9005. https://doi.org/10.1021/acsapm.2c01330
bibtex: '@article{Kumar_Kuckling_Nebhani_2022, title={Quinuclidine-Immobilized Porous
Polymeric Microparticles as a Compelling Catalyst for the Baylis–Hillman Reaction},
volume={4}, DOI={10.1021/acsapm.2c01330},
number={12}, journal={ACS Applied Polymer Materials}, publisher={American Chemical
Society (ACS)}, author={Kumar, Amit and Kuckling, Dirk and Nebhani, Leena}, year={2022},
pages={8996–9005} }'
chicago: 'Kumar, Amit, Dirk Kuckling, and Leena Nebhani. “Quinuclidine-Immobilized
Porous Polymeric Microparticles as a Compelling Catalyst for the Baylis–Hillman
Reaction.” ACS Applied Polymer Materials 4, no. 12 (2022): 8996–9005. https://doi.org/10.1021/acsapm.2c01330.'
ieee: 'A. Kumar, D. Kuckling, and L. Nebhani, “Quinuclidine-Immobilized Porous Polymeric
Microparticles as a Compelling Catalyst for the Baylis–Hillman Reaction,” ACS
Applied Polymer Materials, vol. 4, no. 12, pp. 8996–9005, 2022, doi: 10.1021/acsapm.2c01330.'
mla: Kumar, Amit, et al. “Quinuclidine-Immobilized Porous Polymeric Microparticles
as a Compelling Catalyst for the Baylis–Hillman Reaction.” ACS Applied Polymer
Materials, vol. 4, no. 12, American Chemical Society (ACS), 2022, pp. 8996–9005,
doi:10.1021/acsapm.2c01330.
short: A. Kumar, D. Kuckling, L. Nebhani, ACS Applied Polymer Materials 4 (2022)
8996–9005.
date_created: 2023-01-10T08:07:12Z
date_updated: 2023-01-10T08:12:15Z
department:
- _id: '163'
doi: 10.1021/acsapm.2c01330
intvolume: ' 4'
issue: '12'
keyword:
- distillation−precipitation polymerization
- porous microparticles
- heterogeneous catalysis Baylis−Hillman reaction
- reusable catalyst
language:
- iso: eng
main_file_link:
- url: https://pubs.acs.org/doi/10.1021/acsapm.2c01330
page: 8996-9005
publication: ACS Applied Polymer Materials
publication_identifier:
issn:
- 2637-6105
- 2637-6105
publication_status: published
publisher: American Chemical Society (ACS)
status: public
title: Quinuclidine-Immobilized Porous Polymeric Microparticles as a Compelling Catalyst
for the Baylis–Hillman Reaction
type: journal_article
user_id: '94'
volume: 4
year: '2022'
...
---
_id: '63943'
abstract:
- lang: eng
text: A lithium halide exchange reaction at low-temperature, via the treatment of
2,6-di(isopropyl)phenyllithium on 1,1′-bis-(dichlorophosphino)ferrocene, resulted
in the first isolated example of an aryl-substituted diphospha [2]ferrocenophane
(diphospha [2]FCP) 2. Although compound 2 did not show any recognizable thermal
reaction at higher temperature (up to 350 °C), its tert-butyl-substituted counterpart
1 underwent a clean selective heat-mediated P–C cleavage reaction, followed
by an inter-molecular rearrangement, to produce a P–P fused bis [3]ferrocenophane
3 with all-trans oriented P-chain, which upon further heating gave a polyferrocenylphosphane
tBu-[Fc’P2]n-tBu (4). Since polymer 4 is insoluble in common organic solvents,
it has been characterized with solid-state techniques, including solid-state NMR.
Density functional theory (DFT) has further been employed to identify possible
pathways for P–C bond cleavage on 1 and 2, as well as to evaluate accessible
pathways for further polymerization toward 4.
author:
- first_name: Subhayan
full_name: Dey, Subhayan
last_name: Dey
- first_name: Denis
full_name: Kargin, Denis
last_name: Kargin
- first_name: Mark V.
full_name: Höfler, Mark V.
last_name: Höfler
- first_name: Balazs
full_name: Szathmari, Balazs
last_name: Szathmari
- first_name: Clemens
full_name: Bruhn, Clemens
last_name: Bruhn
- first_name: Torsten
full_name: Gutmann, Torsten
id: '118165'
last_name: Gutmann
- first_name: Zsolt
full_name: Kelemen, Zsolt
last_name: Kelemen
- first_name: Rudolf
full_name: Pietschnig, Rudolf
last_name: Pietschnig
citation:
ama: Dey S, Kargin D, Höfler MV, et al. Oligo- and polymerization of phospha [2]ferrocenophanes
to one dimensional phosphorus chains with ferrocenylene handles. Polymer.
2022;242:124589.
apa: Dey, S., Kargin, D., Höfler, M. V., Szathmari, B., Bruhn, C., Gutmann, T.,
Kelemen, Z., & Pietschnig, R. (2022). Oligo- and polymerization of phospha
[2]ferrocenophanes to one dimensional phosphorus chains with ferrocenylene handles.
Polymer, 242, 124589.
bibtex: '@article{Dey_Kargin_Höfler_Szathmari_Bruhn_Gutmann_Kelemen_Pietschnig_2022,
title={Oligo- and polymerization of phospha [2]ferrocenophanes to one dimensional
phosphorus chains with ferrocenylene handles}, volume={242}, journal={Polymer},
author={Dey, Subhayan and Kargin, Denis and Höfler, Mark V. and Szathmari, Balazs
and Bruhn, Clemens and Gutmann, Torsten and Kelemen, Zsolt and Pietschnig, Rudolf},
year={2022}, pages={124589} }'
chicago: 'Dey, Subhayan, Denis Kargin, Mark V. Höfler, Balazs Szathmari, Clemens
Bruhn, Torsten Gutmann, Zsolt Kelemen, and Rudolf Pietschnig. “Oligo- and Polymerization
of Phospha [2]Ferrocenophanes to One Dimensional Phosphorus Chains with Ferrocenylene
Handles.” Polymer 242 (2022): 124589.'
ieee: S. Dey et al., “Oligo- and polymerization of phospha [2]ferrocenophanes
to one dimensional phosphorus chains with ferrocenylene handles,” Polymer,
vol. 242, p. 124589, 2022.
mla: Dey, Subhayan, et al. “Oligo- and Polymerization of Phospha [2]Ferrocenophanes
to One Dimensional Phosphorus Chains with Ferrocenylene Handles.” Polymer,
vol. 242, 2022, p. 124589.
short: S. Dey, D. Kargin, M.V. Höfler, B. Szathmari, C. Bruhn, T. Gutmann, Z. Kelemen,
R. Pietschnig, Polymer 242 (2022) 124589.
date_created: 2026-02-07T09:10:38Z
date_updated: 2026-02-17T16:18:36Z
extern: '1'
intvolume: ' 242'
keyword:
- solid-state nmr
- Ansa-ferrocene
- DFT calculations
- Oligophosphine
- Polyphosphane
- Ring-opening polymerization
language:
- iso: eng
page: '124589'
publication: Polymer
status: public
title: Oligo- and polymerization of phospha [2]ferrocenophanes to one dimensional
phosphorus chains with ferrocenylene handles
type: journal_article
user_id: '100715'
volume: 242
year: '2022'
...
---
_id: '13185'
abstract:
- lang: eng
text: Abstract Polylactide is a biodegradable versatile material based on annually
renewable resources and thus CO2-neutral in its lifecycle. Until now, tin(II)octanoate
[Sn(Oct2)] was used as catalyst for the industrial ring-opening polymerization
of lactide in spite of its cytotoxicity. On the way towards a sustainable catalyst,
three iron(II) hybrid guanidine complexes were investigated concerning their molecular
structure and applied to the ring-opening polymerization of lactide. The complexes
could polymerize unpurified technical-grade rac-lactide as well as recrystallized
l-lactide to long-chain polylactide in bulk with monomer/initiator ratios of more
than 5000:1 in a controlled manner following the coordination–insertion mechanism.
For the first time, a biocompatible complex has surpassed Sn(Oct)2 in its polymerization
activity under industrially relevant conditions.
author:
- first_name: Ruth D.
full_name: Rittinghaus, Ruth D.
last_name: Rittinghaus
- first_name: Pascal M.
full_name: Schäfer, Pascal M.
last_name: Schäfer
- first_name: Pascal
full_name: Albrecht, Pascal
last_name: Albrecht
- first_name: Christian
full_name: Conrads, Christian
last_name: Conrads
- first_name: Alexander
full_name: Hoffmann, Alexander
last_name: Hoffmann
- first_name: Agnieszka N.
full_name: Ksiazkiewicz, Agnieszka N.
last_name: Ksiazkiewicz
- first_name: Olga
full_name: Bienemann, Olga
last_name: Bienemann
- first_name: Andrij
full_name: Pich, Andrij
last_name: Pich
- first_name: Sonja
full_name: Herres-Pawlis, Sonja
last_name: Herres-Pawlis
citation:
ama: 'Rittinghaus RD, Schäfer PM, Albrecht P, et al. New Kids in Lactide Polymerization:
Highly Active and Robust Iron Guanidine Complexes as Superior Catalysts. ChemSusChem.
2019;12(10):2161-2165. doi:10.1002/cssc.201900481'
apa: 'Rittinghaus, R. D., Schäfer, P. M., Albrecht, P., Conrads, C., Hoffmann, A.,
Ksiazkiewicz, A. N., … Herres-Pawlis, S. (2019). New Kids in Lactide Polymerization:
Highly Active and Robust Iron Guanidine Complexes as Superior Catalysts. ChemSusChem,
12(10), 2161–2165. https://doi.org/10.1002/cssc.201900481'
bibtex: '@article{Rittinghaus_Schäfer_Albrecht_Conrads_Hoffmann_Ksiazkiewicz_Bienemann_Pich_Herres-Pawlis_2019,
title={New Kids in Lactide Polymerization: Highly Active and Robust Iron Guanidine
Complexes as Superior Catalysts}, volume={12}, DOI={10.1002/cssc.201900481},
number={10}, journal={ChemSusChem}, author={Rittinghaus, Ruth D. and Schäfer,
Pascal M. and Albrecht, Pascal and Conrads, Christian and Hoffmann, Alexander
and Ksiazkiewicz, Agnieszka N. and Bienemann, Olga and Pich, Andrij and Herres-Pawlis,
Sonja}, year={2019}, pages={2161–2165} }'
chicago: 'Rittinghaus, Ruth D., Pascal M. Schäfer, Pascal Albrecht, Christian Conrads,
Alexander Hoffmann, Agnieszka N. Ksiazkiewicz, Olga Bienemann, Andrij Pich, and
Sonja Herres-Pawlis. “New Kids in Lactide Polymerization: Highly Active and Robust
Iron Guanidine Complexes as Superior Catalysts.” ChemSusChem 12, no. 10
(2019): 2161–65. https://doi.org/10.1002/cssc.201900481.'
ieee: 'R. D. Rittinghaus et al., “New Kids in Lactide Polymerization: Highly
Active and Robust Iron Guanidine Complexes as Superior Catalysts,” ChemSusChem,
vol. 12, no. 10, pp. 2161–2165, 2019.'
mla: 'Rittinghaus, Ruth D., et al. “New Kids in Lactide Polymerization: Highly Active
and Robust Iron Guanidine Complexes as Superior Catalysts.” ChemSusChem,
vol. 12, no. 10, 2019, pp. 2161–65, doi:10.1002/cssc.201900481.'
short: R.D. Rittinghaus, P.M. Schäfer, P. Albrecht, C. Conrads, A. Hoffmann, A.N.
Ksiazkiewicz, O. Bienemann, A. Pich, S. Herres-Pawlis, ChemSusChem 12 (2019) 2161–2165.
date_created: 2019-09-11T10:58:09Z
date_updated: 2022-01-06T06:51:30Z
doi: 10.1002/cssc.201900481
intvolume: ' 12'
issue: '10'
keyword:
- bioplastics
- guanidines
- iron
- lactide
- ring-opening polymerization
language:
- iso: eng
page: 2161-2165
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: ChemSusChem
status: public
title: 'New Kids in Lactide Polymerization: Highly Active and Robust Iron Guanidine
Complexes as Superior Catalysts'
type: journal_article
user_id: '40778'
volume: 12
year: '2019'
...
---
_id: '30932'
article_number: '678'
author:
- first_name: Artjom
full_name: Herberg, Artjom
id: '94'
last_name: Herberg
- first_name: Xiaoqian
full_name: Yu, Xiaoqian
last_name: Yu
- first_name: Dirk
full_name: Kuckling, Dirk
id: '287'
last_name: Kuckling
citation:
ama: 'Herberg A, Yu X, Kuckling D. End Group Stability of Atom Transfer Radical
Polymerization (ATRP)-Synthesized Poly(N-isopropylacrylamide): Perspectives for
Diblock Copolymer Synthesis. Polymers. 2019;11(4). doi:https://doi.org/10.3390/polym11040678'
apa: 'Herberg, A., Yu, X., & Kuckling, D. (2019). End Group Stability of Atom
Transfer Radical Polymerization (ATRP)-Synthesized Poly(N-isopropylacrylamide):
Perspectives for Diblock Copolymer Synthesis. Polymers, 11(4), Article
678. https://doi.org/10.3390/polym11040678'
bibtex: '@article{Herberg_Yu_Kuckling_2019, title={End Group Stability of Atom Transfer
Radical Polymerization (ATRP)-Synthesized Poly(N-isopropylacrylamide): Perspectives
for Diblock Copolymer Synthesis}, volume={11}, DOI={https://doi.org/10.3390/polym11040678},
number={4678}, journal={Polymers}, publisher={MDPI}, author={Herberg, Artjom and
Yu, Xiaoqian and Kuckling, Dirk}, year={2019} }'
chicago: 'Herberg, Artjom, Xiaoqian Yu, and Dirk Kuckling. “End Group Stability
of Atom Transfer Radical Polymerization (ATRP)-Synthesized Poly(N-Isopropylacrylamide):
Perspectives for Diblock Copolymer Synthesis.” Polymers 11, no. 4 (2019).
https://doi.org/10.3390/polym11040678.'
ieee: 'A. Herberg, X. Yu, and D. Kuckling, “End Group Stability of Atom Transfer
Radical Polymerization (ATRP)-Synthesized Poly(N-isopropylacrylamide): Perspectives
for Diblock Copolymer Synthesis,” Polymers, vol. 11, no. 4, Art. no. 678,
2019, doi: https://doi.org/10.3390/polym11040678.'
mla: 'Herberg, Artjom, et al. “End Group Stability of Atom Transfer Radical Polymerization
(ATRP)-Synthesized Poly(N-Isopropylacrylamide): Perspectives for Diblock Copolymer
Synthesis.” Polymers, vol. 11, no. 4, 678, MDPI, 2019, doi:https://doi.org/10.3390/polym11040678.'
short: A. Herberg, X. Yu, D. Kuckling, Polymers 11 (2019).
date_created: 2022-04-21T09:08:41Z
date_updated: 2022-04-21T09:09:00Z
department:
- _id: '311'
doi: https://doi.org/10.3390/polym11040678
intvolume: ' 11'
issue: '4'
keyword:
- controlled radical polymerization
- atom transfer radical polymerization
- end group determination
- N-isopropylacrylamide
- block copolymerization
- smart polymers
- temperature sensitive polymers
- lower critical solution temperature
- ESI-TOF mass spectrometry
- ion mobility separation
- size exclusion chromatography
language:
- iso: eng
publication: Polymers
publication_status: published
publisher: MDPI
status: public
title: 'End Group Stability of Atom Transfer Radical Polymerization (ATRP)-Synthesized
Poly(N-isopropylacrylamide): Perspectives for Diblock Copolymer Synthesis'
type: journal_article
user_id: '94'
volume: 11
year: '2019'
...
---
_id: '13186'
abstract:
- lang: eng
text: Ligands DMEG6etqu, TMG6etqu, DMEG6buqu, and TMG6buqu were developed on the
basis of guanidine quinoline (GUAqu) ligands 1,3-dimethyl-N-(quinolin-8-yl)imidazolidin-2-imine
(DMEGqu) and 1,1,3,3-tetramethyl-2-(quinolin-8-yl)guanidine (TMGqu). These ligands
feature an alkyl substituent at the C6 of the quinoline backbone. The synthetic
strategy developed here enables inexpensive syntheses of any kind of C6-substituted
GUAqu ligands. On one hand, the alkylation increases the solubility of corresponding
copper complexes in apolar atom transfer radical polymerization (ATRP) monomers
like styrene. On the other hand, it has a significant electronic influence and
thus an effect on the donor properties of the new ligands. Seven CuI and CuII
complexes of DMEG6etqu and TMG6etqu have been crystallized and were studied with
regard to their structural and electrochemical properties. CuI and CuII complexes
of DMEG6buqu and TMG6buqu turned out to be perfectly soluble in pure styrene even
at room temperature, which makes them excellent catalysts in the ATRP of apolar
monomers. The key characteristics of the ATRP equilibrium, KATRP and kact, were
determined for the new complexes. In addition, we used our recently developed
DFT methodology, NBO analysis, and isodesmic reactions to predict the influence
of the introduced alkyl substituents. It turned out that high conformational freedom
in the complex structures leads to a significant uncertainty in prediction of
the thermodynamic properties.
author:
- first_name: Thomas
full_name: Rösener, Thomas
last_name: Rösener
- first_name: Alexander
full_name: Hoffmann, Alexander
last_name: Hoffmann
- first_name: Sonja
full_name: Herres-Pawlis, Sonja
last_name: Herres-Pawlis
citation:
ama: 'Rösener T, Hoffmann A, Herres-Pawlis S. Next Generation of Guanidine Quinoline
Copper Complexes for Highly Controlled ATRP: Influence of Backbone Substitution
on Redox Chemistry and Solubility. European Journal of Inorganic Chemistry.
2018;2018(27):3164-3175. doi:10.1002/ejic.201800511'
apa: 'Rösener, T., Hoffmann, A., & Herres-Pawlis, S. (2018). Next Generation
of Guanidine Quinoline Copper Complexes for Highly Controlled ATRP: Influence
of Backbone Substitution on Redox Chemistry and Solubility. European Journal
of Inorganic Chemistry, 2018(27), 3164–3175. https://doi.org/10.1002/ejic.201800511'
bibtex: '@article{Rösener_Hoffmann_Herres-Pawlis_2018, title={Next Generation of
Guanidine Quinoline Copper Complexes for Highly Controlled ATRP: Influence of
Backbone Substitution on Redox Chemistry and Solubility}, volume={2018}, DOI={10.1002/ejic.201800511}, number={27},
journal={European Journal of Inorganic Chemistry}, author={Rösener, Thomas and
Hoffmann, Alexander and Herres-Pawlis, Sonja}, year={2018}, pages={3164–3175}
}'
chicago: 'Rösener, Thomas, Alexander Hoffmann, and Sonja Herres-Pawlis. “Next Generation
of Guanidine Quinoline Copper Complexes for Highly Controlled ATRP: Influence
of Backbone Substitution on Redox Chemistry and Solubility.” European Journal
of Inorganic Chemistry 2018, no. 27 (2018): 3164–75. https://doi.org/10.1002/ejic.201800511.'
ieee: 'T. Rösener, A. Hoffmann, and S. Herres-Pawlis, “Next Generation of Guanidine
Quinoline Copper Complexes for Highly Controlled ATRP: Influence of Backbone Substitution
on Redox Chemistry and Solubility,” European Journal of Inorganic Chemistry,
vol. 2018, no. 27, pp. 3164–3175, 2018.'
mla: 'Rösener, Thomas, et al. “Next Generation of Guanidine Quinoline Copper Complexes
for Highly Controlled ATRP: Influence of Backbone Substitution on Redox Chemistry
and Solubility.” European Journal of Inorganic Chemistry, vol. 2018, no.
27, 2018, pp. 3164–75, doi:10.1002/ejic.201800511.'
short: T. Rösener, A. Hoffmann, S. Herres-Pawlis, European Journal of Inorganic
Chemistry 2018 (2018) 3164–3175.
date_created: 2019-09-11T11:00:06Z
date_updated: 2022-01-06T06:51:30Z
doi: 10.1002/ejic.201800511
intvolume: ' 2018'
issue: '27'
keyword:
- Copper
- Polymerization
- Redox chemistry
- Structure elucidation
- Ligand effects
language:
- iso: eng
page: 3164-3175
project:
- _id: '52'
name: Computing Resources Provided by the Paderborn Center for Parallel Computing
publication: European Journal of Inorganic Chemistry
status: public
title: 'Next Generation of Guanidine Quinoline Copper Complexes for Highly Controlled
ATRP: Influence of Backbone Substitution on Redox Chemistry and Solubility'
type: journal_article
user_id: '40778'
volume: 2018
year: '2018'
...
---
_id: '64054'
abstract:
- lang: eng
text: In this work, the preparation of porous hybrid particle-based films by core-shell
particle design and convenient film preparation is reported. Monodisperse core
particles consisting of poly(methyl methacrylate‑co‑allyl methacrylate) (P(MMA‑co‑ALMA))
were synthesized by starved-feed emulsion polymerization followed by the introduction
of an initiator-containing monomer (inimer) for subsequent atom transfer radical
polymerization (ATRP). The inimer shell allowed for the introduction of allylhydrido
polycarbosilane (SMP-10) under ATRP conditions by grafting to the core particles.
The functionalization of the prepared core-shell particles was investigated by
IR spectroscopy (FTIR), scanning transmission electron microscopy (STEM) and solid-state
NMR combined with dynamic nuclear polarization (DNP). The obtained hard core/soft
preceramic shell particles were subjected to the melt-shear organization technique,
enabling a convenient alignment into a colloidal crystal structure in one single
step without the presence of a dispersion medium or solvent for the designed particles.
Moreover, the hybrid particle-based films were converted into a porous ceramic
structure upon thermal treatment. As a result, freestanding ceramic porous films
have been obtained after degradation of the organic template core particles. Noteworthy,
the conversion of the matrix material consisting of SMP-10 into the ceramic occurred
with preservation of the pristine colloidal crystal template structure. Herein,
the first example of core-shell particle preparation by combining different polymerization
methodologies and application of the convenient melt-shear organization technique
is shown, paving a new way to ceramic materials with tailored morphology and porosity.
author:
- first_name: Steffen
full_name: Vowinkel, Steffen
last_name: Vowinkel
- first_name: Anna
full_name: Boehm, Anna
last_name: Boehm
- first_name: Timmy
full_name: Schäfer, Timmy
last_name: Schäfer
- first_name: Torsten
full_name: Gutmann, Torsten
id: '118165'
last_name: Gutmann
- first_name: Emanuel
full_name: Ionescu, Emanuel
last_name: Ionescu
- first_name: Markus
full_name: Gallei, Markus
last_name: Gallei
citation:
ama: Vowinkel S, Boehm A, Schäfer T, Gutmann T, Ionescu E, Gallei M. Preceramic
core-shell particles for the preparation of hybrid colloidal crystal films by
melt-shear organization and conversion into porous ceramics. Materials &
Design. 2018;160:926–935. doi:10.1016/j.matdes.2018.10.032
apa: Vowinkel, S., Boehm, A., Schäfer, T., Gutmann, T., Ionescu, E., & Gallei,
M. (2018). Preceramic core-shell particles for the preparation of hybrid colloidal
crystal films by melt-shear organization and conversion into porous ceramics.
Materials & Design, 160, 926–935. https://doi.org/10.1016/j.matdes.2018.10.032
bibtex: '@article{Vowinkel_Boehm_Schäfer_Gutmann_Ionescu_Gallei_2018, title={Preceramic
core-shell particles for the preparation of hybrid colloidal crystal films by
melt-shear organization and conversion into porous ceramics}, volume={160}, DOI={10.1016/j.matdes.2018.10.032},
journal={Materials & Design}, author={Vowinkel, Steffen and Boehm, Anna and
Schäfer, Timmy and Gutmann, Torsten and Ionescu, Emanuel and Gallei, Markus},
year={2018}, pages={926–935} }'
chicago: 'Vowinkel, Steffen, Anna Boehm, Timmy Schäfer, Torsten Gutmann, Emanuel
Ionescu, and Markus Gallei. “Preceramic Core-Shell Particles for the Preparation
of Hybrid Colloidal Crystal Films by Melt-Shear Organization and Conversion into
Porous Ceramics.” Materials & Design 160 (2018): 926–935. https://doi.org/10.1016/j.matdes.2018.10.032.'
ieee: 'S. Vowinkel, A. Boehm, T. Schäfer, T. Gutmann, E. Ionescu, and M. Gallei,
“Preceramic core-shell particles for the preparation of hybrid colloidal crystal
films by melt-shear organization and conversion into porous ceramics,” Materials
& Design, vol. 160, pp. 926–935, 2018, doi: 10.1016/j.matdes.2018.10.032.'
mla: Vowinkel, Steffen, et al. “Preceramic Core-Shell Particles for the Preparation
of Hybrid Colloidal Crystal Films by Melt-Shear Organization and Conversion into
Porous Ceramics.” Materials & Design, vol. 160, 2018, pp. 926–935,
doi:10.1016/j.matdes.2018.10.032.
short: S. Vowinkel, A. Boehm, T. Schäfer, T. Gutmann, E. Ionescu, M. Gallei, Materials
& Design 160 (2018) 926–935.
date_created: 2026-02-07T16:15:42Z
date_updated: 2026-02-17T16:12:52Z
doi: 10.1016/j.matdes.2018.10.032
extern: '1'
intvolume: ' 160'
keyword:
- emulsion polymerization
- self-assembly
- ATRP
- Colloidal crystal
- Hybrid film
- Particle processing
language:
- iso: eng
page: 926–935
publication: Materials & Design
status: public
title: Preceramic core-shell particles for the preparation of hybrid colloidal crystal
films by melt-shear organization and conversion into porous ceramics
type: journal_article
user_id: '100715'
volume: 160
year: '2018'
...
---
_id: '64053'
abstract:
- lang: eng
text: The utilization and preparation of functional hybrid films for optical sensing
applications and membranes is of utmost importance. In this work, we report the
convenient and scalable preparation of self-crosslinking particle-based films
derived by directed self-assembly of alkoxysilane-based cross-linkers as part
of a core-shell particle architecture. The synthesis of well-designed monodisperse
core-shell particles by emulsion polymerization is the basic prerequisite for
subsequent particle processing via the melt-shear organization technique. In more
detail, the core particles consist of polystyrene (PS) or poly(methyl methacrylate)
(PMMA), while the comparably soft particle shell consists of poly(ethyl acrylate)
(PEA) and different alkoxysilane-based poly(methacrylate)s. For hybrid film formation
and convenient self-cross-linking, different alkyl groups at the siloxane moieties
were investigated in detail by solid-state Magic-Angle Spinning Nuclear Magnetic
Resonance (MAS, NMR) spectroscopy revealing different crosslinking capabilities,
which strongly influence the properties of the core or shell particle films with
respect to transparency and iridescent reflection colors. Furthermore, solid-state
NMR spectroscopy and investigation of the thermal properties by differential scanning
calorimetry (DSC) measurements allow for insights into the cross-linking capabilities
prior to and after synthesis, as well as after the thermally and pressure-induced
processing steps. Subsequently, free-standing and self-crosslinked particle-based
films featuring excellent particle order are obtained by application of the melt-shear
organization technique, as shown by microscopy (TEM, SEM).
author:
- first_name: S.
full_name: Vowinkel, S.
last_name: Vowinkel
- first_name: S.
full_name: Paul, S.
last_name: Paul
- first_name: Torsten
full_name: Gutmann, Torsten
id: '118165'
last_name: Gutmann
- first_name: M.
full_name: Gallei, M.
last_name: Gallei
citation:
ama: Vowinkel S, Paul S, Gutmann T, Gallei M. Free-Standing and Self-Crosslinkable
Hybrid Films by Core-Shell Particle Design and Processing. Nanomaterials.
2017;7(11):390. doi:10.3390/nano7110390
apa: Vowinkel, S., Paul, S., Gutmann, T., & Gallei, M. (2017). Free-Standing
and Self-Crosslinkable Hybrid Films by Core-Shell Particle Design and Processing.
Nanomaterials, 7(11), 390. https://doi.org/10.3390/nano7110390
bibtex: '@article{Vowinkel_Paul_Gutmann_Gallei_2017, title={Free-Standing and Self-Crosslinkable
Hybrid Films by Core-Shell Particle Design and Processing}, volume={7}, DOI={10.3390/nano7110390}, number={11},
journal={Nanomaterials}, author={Vowinkel, S. and Paul, S. and Gutmann, Torsten
and Gallei, M.}, year={2017}, pages={390} }'
chicago: 'Vowinkel, S., S. Paul, Torsten Gutmann, and M. Gallei. “Free-Standing
and Self-Crosslinkable Hybrid Films by Core-Shell Particle Design and Processing.”
Nanomaterials 7, no. 11 (2017): 390. https://doi.org/10.3390/nano7110390.'
ieee: 'S. Vowinkel, S. Paul, T. Gutmann, and M. Gallei, “Free-Standing and Self-Crosslinkable
Hybrid Films by Core-Shell Particle Design and Processing,” Nanomaterials,
vol. 7, no. 11, p. 390, 2017, doi: 10.3390/nano7110390.'
mla: Vowinkel, S., et al. “Free-Standing and Self-Crosslinkable Hybrid Films by
Core-Shell Particle Design and Processing.” Nanomaterials, vol. 7, no.
11, 2017, p. 390, doi:10.3390/nano7110390.
short: S. Vowinkel, S. Paul, T. Gutmann, M. Gallei, Nanomaterials 7 (2017) 390.
date_created: 2026-02-07T16:15:23Z
date_updated: 2026-02-17T16:12:54Z
doi: 10.3390/nano7110390
extern: '1'
intvolume: ' 7'
issue: '11'
keyword:
- Materials Science
- Science & Technology - Other Topics
- solid-state nmr
- spectroscopy
- catalysts
- colloidal crystals
- colloids
- cross-linking
- elastomeric opal films
- emulsion polymerization
- gamma-methacryloxypropyltrimethoxysilane
- hybrid films
- melt-shear organization
- nanoparticles
- particle
- photons
- polymers
- processing
- self-assembly
- transition
language:
- iso: eng
page: '390'
publication: Nanomaterials
publication_identifier:
issn:
- 2079-4991
status: public
title: Free-Standing and Self-Crosslinkable Hybrid Films by Core-Shell Particle Design
and Processing
type: journal_article
user_id: '100715'
volume: 7
year: '2017'
...
---
_id: '64039'
abstract:
- lang: eng
text: The preparation of hierarchical and sophisticated particle architectures for
mimicking structural colors known from nature still remains a challenge. In this
study, the preparation of novel opal and double-inverse opal films based on thermally
treated metallopolymer core particles with a silica shell is described. Thermal
treatment leads to the formation of magnetic nanorattle-type particles. The main
challenge of artificial particles is to ensure sufficient dispersibility after
several synthetic steps. Especially silica particles providing surface hydroxyl
groups tend to sinter at high temperatures leading to agglomeration. We present
the introduction of trimethyl ethoxy silane (TMES) as an excellent functionalization
reagent as the key reaction step. The necessity and success of functionalization
are investigated by transmission electron microscopy (TEM) and zeta potential
measurements. Importantly, solid state NMR techniques are employed to gain deeper
insights into the chemical structure of the surface-attached reagent. Finally,
by this convenient functionalization the preparation of elastomeric opal films
and double-inverse opal films is proven successful revealing excellent optical
film properties. Moreover, magnetic properties of these novel films are investigated
by using magnetic force microscopy (MFM). The herein established route is expected
to pave the way for the preparation of a variety of advanced and stimuli-responsive
optical materials.
author:
- first_name: D.
full_name: Scheid, D.
last_name: Scheid
- first_name: D.
full_name: Stock, D.
last_name: Stock
- first_name: T.
full_name: Winter, T.
last_name: Winter
- first_name: Torsten
full_name: Gutmann, Torsten
id: '118165'
last_name: Gutmann
- first_name: C.
full_name: Dietz, C.
last_name: Dietz
- first_name: M.
full_name: Gallei, M.
last_name: Gallei
citation:
ama: Scheid D, Stock D, Winter T, Gutmann T, Dietz C, Gallei M. The pivotal step
of nanoparticle functionalization for the preparation of functional and magnetic
hybrid opal films. Journal of Materials Chemistry C. 2016;4(11):2187–2196.
doi:10.1039/c5tc04388c
apa: Scheid, D., Stock, D., Winter, T., Gutmann, T., Dietz, C., & Gallei, M.
(2016). The pivotal step of nanoparticle functionalization for the preparation
of functional and magnetic hybrid opal films. Journal of Materials Chemistry
C, 4(11), 2187–2196. https://doi.org/10.1039/c5tc04388c
bibtex: '@article{Scheid_Stock_Winter_Gutmann_Dietz_Gallei_2016, title={The pivotal
step of nanoparticle functionalization for the preparation of functional and magnetic
hybrid opal films}, volume={4}, DOI={10.1039/c5tc04388c},
number={11}, journal={Journal of Materials Chemistry C}, author={Scheid, D. and
Stock, D. and Winter, T. and Gutmann, Torsten and Dietz, C. and Gallei, M.}, year={2016},
pages={2187–2196} }'
chicago: 'Scheid, D., D. Stock, T. Winter, Torsten Gutmann, C. Dietz, and M. Gallei.
“The Pivotal Step of Nanoparticle Functionalization for the Preparation of Functional
and Magnetic Hybrid Opal Films.” Journal of Materials Chemistry C 4, no.
11 (2016): 2187–2196. https://doi.org/10.1039/c5tc04388c.'
ieee: 'D. Scheid, D. Stock, T. Winter, T. Gutmann, C. Dietz, and M. Gallei, “The
pivotal step of nanoparticle functionalization for the preparation of functional
and magnetic hybrid opal films,” Journal of Materials Chemistry C, vol.
4, no. 11, pp. 2187–2196, 2016, doi: 10.1039/c5tc04388c.'
mla: Scheid, D., et al. “The Pivotal Step of Nanoparticle Functionalization for
the Preparation of Functional and Magnetic Hybrid Opal Films.” Journal of Materials
Chemistry C, vol. 4, no. 11, 2016, pp. 2187–2196, doi:10.1039/c5tc04388c.
short: D. Scheid, D. Stock, T. Winter, T. Gutmann, C. Dietz, M. Gallei, Journal
of Materials Chemistry C 4 (2016) 2187–2196.
date_created: 2026-02-07T16:09:09Z
date_updated: 2026-02-17T16:13:25Z
doi: 10.1039/c5tc04388c
extern: '1'
intvolume: ' 4'
issue: '11'
keyword:
- Materials Science
- silica
- Physics
- nmr
- colloidal photonic crystals
- light
- polymerization
- solids
- structural color
- thermo
language:
- iso: eng
page: 2187–2196
publication: Journal of Materials Chemistry C
publication_identifier:
issn:
- 2050-7526
status: public
title: The pivotal step of nanoparticle functionalization for the preparation of functional
and magnetic hybrid opal films
type: journal_article
user_id: '100715'
volume: 4
year: '2016'
...