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doi:10.22028/D291-43641
Titel: | Tailored Interaction between Cellulose Nanowhiskers and Core-Shell Particles Determines the Optical and Mechanical Properties in Hybrid Films |
VerfasserIn: | Leiner, Regina Witayakran, Suteera Verwaayen, Sascha Siegwardt, Lukas Ribeiro, Catarina C. Dietz, Christian Koch, Marcus Kulachenko, Artem Gallei, Markus |
Sprache: | Englisch |
Titel: | ACS applied materials & interfaces |
Bandnummer: | 16 |
Heft: | 46 |
Seiten: | 64377-64387 |
Verlag/Plattform: | ACS |
Erscheinungsjahr: | 2024 |
Freie Schlagwörter: | cellulose nanowhiskers opal films structural colors photonic glasses emulsion polymerization core−shell particles |
DDC-Sachgruppe: | 540 Chemie |
Dokumenttyp: | Journalartikel / Zeitschriftenartikel |
Abstract: | Hybrid materials of core-shell particles and cellulose nanowhiskers (CNWs) were synthesized to produce opal films with increasing tensile strength. After the incorporation of CNWs into the processed particle films, differences in the mechanical and optical properties were noticeable, which stemmed from the adhesion forces between the cellulose and the particles' shell material. Two different particle compositions were compared, using polystyrene as cores, and either poly(ethyl acrylate) (PEA) or a copolymer of ethyl acrylate and 3 wt % of 2-hydroxyethyl methacrylate (HEMA) as the shell material. Stronger interactions between the particles containing HEMA and the CNWs were displayed via atomic force microscopy particle manipulation experiments, where higher forces were required to deliberately move P(EA-co-HEMA) particles on a CNW substrate compared to PEA particles. The stronger interaction behaviors increased the disorder of the particles within the opal films toward photonic glasses with angle-independent structural colors. Also, the increase in tensile strength from <1 MPa at a cellulose content of 0 wt % to 6 MPa at the optimal CNW content of 15 wt % was more pronounced compared to the particle-cellulose mixture with only PEA in the particle shell. Thus, the presence of the hydroxy groups in the particles' shell material on the molecular level significantly influenced the optical and mechanical properties on the macroscopic level. |
DOI der Erstveröffentlichung: | 10.1021/acsami.4c16816 |
URL der Erstveröffentlichung: | https://pubs.acs.org/doi/10.1021/acsami.4c16816 |
Link zu diesem Datensatz: | urn:nbn:de:bsz:291--ds-436411 hdl:20.500.11880/39119 http://dx.doi.org/10.22028/D291-43641 |
ISSN: | 1944-8252 1944-8244 |
Datum des Eintrags: | 4-Dez-2024 |
Fakultät: | NT - Naturwissenschaftlich- Technische Fakultät |
Fachrichtung: | NT - Chemie |
Professur: | NT - Prof. Dr. Markus Gallei |
Sammlung: | SciDok - Der Wissenschaftsserver der Universität des Saarlandes |
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