Dendronized polydiacetylenes via photo-polymerization of supramolecular assemblies showing thermally tunable chirality
| Autor: | Afang Zhang, Andrew K. Whittaker, Yuexin Cao, Debra J. Searles, Aomiao Zhi, Wen Li, Lin Yaodong, Chen Jiabei, Baris Demir, Liu Yanjun |
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| Rok vydání: | 2021 |
| Předmět: |
chemistry.chemical_classification
Materials science Metals and Alloys Supramolecular chemistry Nanotechnology General Chemistry Polymer Catalysis Surfaces Coatings and Films Electronic Optical and Magnetic Materials Supramolecular assembly Polymerization chemistry Covalent bond Amphiphile Materials Chemistry Ceramics and Composites Chirality (chemistry) Polydiacetylenes |
| Zdroj: | Chemical Communications. 57:12780-12783 |
| ISSN: | 1364-548X 1359-7345 |
| DOI: | 10.1039/d1cc05358b |
| Popis: | Transformation of supramolecular chiral assemblies into covalent polymers integrates characteristics of supramolecular chemistry together with covalent entities, leading to fabrication of covalent chiral materials through versatile supramolecular chiral assemblies. Here, we report supramolecular assembly of an amphiphilic dendronized 10,12-pentacosadiynoic amide (PCDA) in aqueous solutions to form twisted ribbons, which were transferred into covalent dendronized polydiacetylenes (PDAs) via photopolymerization. These supramolecular dendronized PCDA and the corresponding covalent dendronized PDAs showed unprecedent thermoresponsive properties. The thermally-induced dehydration and aggregations tuned reversibly their chiralities, which can be visually inspected through colour changes. |
| Databáze: | OpenAIRE |
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