Amphiphilic ethyl cellulose brush polymers with mono and dual side chains: Facile synthesis,self-assembly,and tunable temperature-pH responsivities |
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| Authors: | Weizhong Yuan Jinchun Zhang Hui Zou Tianxiang Shen Jie Ren |
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| Affiliation: | 1. Institute of Nano and Bio-polymeric Materials, School of Materials Science and Engineering, Tongji University, Shanghai 201804, People’s Republic of China;2. Key Laboratory of Advanced Civil Materials, Ministry of Education, Shanghai 201804, People’s Republic of China |
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| Abstract: | Novel amphiphilic ethyl cellulose (EC) brush polymers with mono and dual side chains of poly(2-(2-methoxyethoxy)ethyl methacrylate)-co-oligo(ethylene glycol) methacrylate) (P(MEO2MA-co-OEGMA)) and poly(2-(N,N-dimethylamino)ethyl methacrylate) (PDMAEMA) were synthesized by the combination of atom transfer radical polymerization (ATRP) and click chemistry. The molar ratio of P(MEO2MA-co-OEGMA) and PDMAEMA was varied through changing the feed ratio of these polymers and the coupling efficiency of click chemistry is relatively high. The brush polymers can self-assemble into spherical micelles/aggregates. The micelles/aggregates show the tunable temperature-pH responsive properties. The cloud points and the pH-triggered phase transition were influenced by EC chains and the ratio of P(MEO2MA-co-OEGMA) and PDMAEMA side chains. The brush polymers have the great potential applications as biomedical or intelligent materials. |
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