[{"date_updated":"2026-02-17T16:12:52Z","date_created":"2026-02-07T16:15:42Z","author":[{"full_name":"Vowinkel, Steffen","last_name":"Vowinkel","first_name":"Steffen"},{"last_name":"Boehm","full_name":"Boehm, Anna","first_name":"Anna"},{"first_name":"Timmy","full_name":"Schäfer, Timmy","last_name":"Schäfer"},{"first_name":"Torsten","last_name":"Gutmann","id":"118165","full_name":"Gutmann, Torsten"},{"last_name":"Ionescu","full_name":"Ionescu, Emanuel","first_name":"Emanuel"},{"first_name":"Markus","last_name":"Gallei","full_name":"Gallei, Markus"}],"volume":160,"title":"Preceramic core-shell particles for the preparation of hybrid colloidal crystal films by melt-shear organization and conversion into porous ceramics","doi":"10.1016/j.matdes.2018.10.032","year":"2018","citation":{"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>","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.","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>.","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>"},"page":"926–935","intvolume":"       160","_id":"64054","user_id":"100715","keyword":["emulsion polymerization","self-assembly","ATRP","Colloidal crystal","Hybrid film","Particle processing"],"language":[{"iso":"eng"}],"extern":"1","type":"journal_article","publication":"Materials & Design","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."}],"status":"public"},{"user_id":"100715","_id":"64053","language":[{"iso":"eng"}],"extern":"1","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"],"type":"journal_article","publication":"Nanomaterials","status":"public","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":[{"full_name":"Vowinkel, S.","last_name":"Vowinkel","first_name":"S."},{"first_name":"S.","last_name":"Paul","full_name":"Paul, S."},{"id":"118165","full_name":"Gutmann, Torsten","last_name":"Gutmann","first_name":"Torsten"},{"first_name":"M.","last_name":"Gallei","full_name":"Gallei, M."}],"date_created":"2026-02-07T16:15:23Z","volume":7,"date_updated":"2026-02-17T16:12:54Z","doi":"10.3390/nano7110390","title":"Free-Standing and Self-Crosslinkable Hybrid Films by Core-Shell Particle Design and Processing","issue":"11","publication_identifier":{"issn":["2079-4991"]},"citation":{"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} }","short":"S. Vowinkel, S. Paul, T. Gutmann, M. Gallei, Nanomaterials 7 (2017) 390.","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>.","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>","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>."},"intvolume":"         7","page":"390","year":"2017"}]