期刊
POLYMERS
卷 9, 期 12, 页码 -出版社
MDPI
DOI: 10.3390/polym9120681
关键词
carboxyl-functionalized microspheres; RAFT polymerization; photoinitiated dispersion polymerization
资金
- Science and Technology Program of Guangzhou [201707010420]
- National Natural Science Foundation of China [21504017]
- Guangdong Natural Science Foundation [2016A030310339]
- Science and Technology Planning Project of Guangdong Province [2017A010103045]
- Pearl River Young Scholar
Herein, we report a photoinitiated reversible addition-fragmentation chain transfer (RAFT) dispersion copolymerization of methyl methacrylate (MMA) and methyl methacrylic (MAA) for the preparation of highly monodisperse carboxyl-functionalized polymeric microspheres. High rates of polymerization were observed, with more than 90% particle yields being achieved within 3 h of UV irradiation. Effects of reaction parameters (e.g., MAA concentration, RAFT agent concentration, photoinitiator concentration, and solvent composition) were studied in detail, and highly monodisperse polymeric microspheres were obtained in most cases. Finally, silver (Ag) composite microspheres were prepared by in situ reduction of AgNO3 using the carboxyl-functionalized polymeric microspheres as the template. The obtained Ag composite microspheres were able to catalyze the reduction of methylene blue (MB) with NaBH4 as a reductant.
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