Colloidal Crystal Films with Narrow Reflection Bands by Hot-Pressing of Polymer-Grafted Silica Particles
Previous reports have shown that colloidal crystal (CC) films with visible Bragg reflection characteristics can be fabricated by the surface modification of monodisperse silica particles (SiPs) with poly(methyl methacrylate) (PMMA) chains, followed by hot-pressing at 150 °C. However, the reflection...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-11-01
|
| Series: | Polymers |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4360/14/23/5157 |
| _version_ | 1797462346958897152 |
|---|---|
| author | Sawa Matsuura Mami Obara Naoto Iwata Seiichi Furumi |
| author_facet | Sawa Matsuura Mami Obara Naoto Iwata Seiichi Furumi |
| author_sort | Sawa Matsuura |
| collection | DOAJ |
| description | Previous reports have shown that colloidal crystal (CC) films with visible Bragg reflection characteristics can be fabricated by the surface modification of monodisperse silica particles (SiPs) with poly(methyl methacrylate) (PMMA) chains, followed by hot-pressing at 150 °C. However, the reflection bands of the CC films were very broad due to their relative disordering of SiPs. In this report, we attempted to fabricate the CC films using SiPs surface-modified with poly(<i>n</i>-octyl acrylate) (POA) chains by hot-pressing. When the cast films of POA-grafted SiPs were prepared by hot-pressing at 100 °C, the reflection bands were narrow rather than those of CC films of PMMA-grafted SiPs. This can be ascribed to easy disentanglement of POA chains during the hot-pressing process, thereby enabling the formation of well-ordered CC structures. Moreover, the reflection colors of CC films could be easily tuned by controlling the molecular weight of POA chains grafted on the SiP surface. |
| first_indexed | 2024-03-09T17:35:14Z |
| format | Article |
| id | doaj.art-d17ada24dcf640cdb808c8988c63607d |
| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-09T17:35:14Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-d17ada24dcf640cdb808c8988c63607d2023-11-24T11:59:23ZengMDPI AGPolymers2073-43602022-11-011423515710.3390/polym14235157Colloidal Crystal Films with Narrow Reflection Bands by Hot-Pressing of Polymer-Grafted Silica ParticlesSawa Matsuura0Mami Obara1Naoto Iwata2Seiichi Furumi3Department of Chemistry, Graduate School of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, JapanDepartment of Chemistry, Graduate School of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, JapanDepartment of Chemistry, Graduate School of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, JapanDepartment of Chemistry, Graduate School of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku, Tokyo 162-8601, JapanPrevious reports have shown that colloidal crystal (CC) films with visible Bragg reflection characteristics can be fabricated by the surface modification of monodisperse silica particles (SiPs) with poly(methyl methacrylate) (PMMA) chains, followed by hot-pressing at 150 °C. However, the reflection bands of the CC films were very broad due to their relative disordering of SiPs. In this report, we attempted to fabricate the CC films using SiPs surface-modified with poly(<i>n</i>-octyl acrylate) (POA) chains by hot-pressing. When the cast films of POA-grafted SiPs were prepared by hot-pressing at 100 °C, the reflection bands were narrow rather than those of CC films of PMMA-grafted SiPs. This can be ascribed to easy disentanglement of POA chains during the hot-pressing process, thereby enabling the formation of well-ordered CC structures. Moreover, the reflection colors of CC films could be easily tuned by controlling the molecular weight of POA chains grafted on the SiP surface.https://www.mdpi.com/2073-4360/14/23/5157colloidal crystalsurface-initiated atom transfer radical polymerizationBragg reflectionreflection colorsilica particles |
| spellingShingle | Sawa Matsuura Mami Obara Naoto Iwata Seiichi Furumi Colloidal Crystal Films with Narrow Reflection Bands by Hot-Pressing of Polymer-Grafted Silica Particles Polymers colloidal crystal surface-initiated atom transfer radical polymerization Bragg reflection reflection color silica particles |
| title | Colloidal Crystal Films with Narrow Reflection Bands by Hot-Pressing of Polymer-Grafted Silica Particles |
| title_full | Colloidal Crystal Films with Narrow Reflection Bands by Hot-Pressing of Polymer-Grafted Silica Particles |
| title_fullStr | Colloidal Crystal Films with Narrow Reflection Bands by Hot-Pressing of Polymer-Grafted Silica Particles |
| title_full_unstemmed | Colloidal Crystal Films with Narrow Reflection Bands by Hot-Pressing of Polymer-Grafted Silica Particles |
| title_short | Colloidal Crystal Films with Narrow Reflection Bands by Hot-Pressing of Polymer-Grafted Silica Particles |
| title_sort | colloidal crystal films with narrow reflection bands by hot pressing of polymer grafted silica particles |
| topic | colloidal crystal surface-initiated atom transfer radical polymerization Bragg reflection reflection color silica particles |
| url | https://www.mdpi.com/2073-4360/14/23/5157 |
| work_keys_str_mv | AT sawamatsuura colloidalcrystalfilmswithnarrowreflectionbandsbyhotpressingofpolymergraftedsilicaparticles AT mamiobara colloidalcrystalfilmswithnarrowreflectionbandsbyhotpressingofpolymergraftedsilicaparticles AT naotoiwata colloidalcrystalfilmswithnarrowreflectionbandsbyhotpressingofpolymergraftedsilicaparticles AT seiichifurumi colloidalcrystalfilmswithnarrowreflectionbandsbyhotpressingofpolymergraftedsilicaparticles |