---
_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. <i>Materials &#38;
    Design</i>. 2018;160:926–935. doi:<a href="https://doi.org/10.1016/j.matdes.2018.10.032">10.1016/j.matdes.2018.10.032</a>
  apa: Vowinkel, S., Boehm, A., Schäfer, T., Gutmann, T., Ionescu, E., &#38; Gallei,
    M. (2018). Preceramic core-shell particles for the preparation of hybrid colloidal
    crystal films by melt-shear organization and conversion into porous ceramics.
    <i>Materials &#38; Design</i>, <i>160</i>, 926–935. <a href="https://doi.org/10.1016/j.matdes.2018.10.032">https://doi.org/10.1016/j.matdes.2018.10.032</a>
  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={<a
    href="https://doi.org/10.1016/j.matdes.2018.10.032">10.1016/j.matdes.2018.10.032</a>},
    journal={Materials &#38; 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.” <i>Materials &#38; Design</i> 160 (2018): 926–935. <a href="https://doi.org/10.1016/j.matdes.2018.10.032">https://doi.org/10.1016/j.matdes.2018.10.032</a>.'
  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,” <i>Materials
    &#38; Design</i>, vol. 160, pp. 926–935, 2018, doi: <a href="https://doi.org/10.1016/j.matdes.2018.10.032">10.1016/j.matdes.2018.10.032</a>.'
  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.” <i>Materials &#38; Design</i>, vol. 160, 2018, pp. 926–935,
    doi:<a href="https://doi.org/10.1016/j.matdes.2018.10.032">10.1016/j.matdes.2018.10.032</a>.
  short: S. Vowinkel, A. Boehm, T. Schäfer, T. Gutmann, E. Ionescu, M. Gallei, Materials
    &#38; 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. <i>Nanomaterials</i>.
    2017;7(11):390. doi:<a href="https://doi.org/10.3390/nano7110390">10.3390/nano7110390</a>
  apa: Vowinkel, S., Paul, S., Gutmann, T., &#38; Gallei, M. (2017). Free-Standing
    and Self-Crosslinkable Hybrid Films by Core-Shell Particle Design and Processing.
    <i>Nanomaterials</i>, <i>7</i>(11), 390. <a href="https://doi.org/10.3390/nano7110390">https://doi.org/10.3390/nano7110390</a>
  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={<a
    href="https://doi.org/10.3390/nano7110390">10.3390/nano7110390</a>}, 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.”
    <i>Nanomaterials</i> 7, no. 11 (2017): 390. <a href="https://doi.org/10.3390/nano7110390">https://doi.org/10.3390/nano7110390</a>.'
  ieee: 'S. Vowinkel, S. Paul, T. Gutmann, and M. Gallei, “Free-Standing and Self-Crosslinkable
    Hybrid Films by Core-Shell Particle Design and Processing,” <i>Nanomaterials</i>,
    vol. 7, no. 11, p. 390, 2017, doi: <a href="https://doi.org/10.3390/nano7110390">10.3390/nano7110390</a>.'
  mla: Vowinkel, S., et al. “Free-Standing and Self-Crosslinkable Hybrid Films by
    Core-Shell Particle Design and Processing.” <i>Nanomaterials</i>, vol. 7, no.
    11, 2017, p. 390, doi:<a href="https://doi.org/10.3390/nano7110390">10.3390/nano7110390</a>.
  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'
...