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Polymers 2017, 9(12), 681;

Carboxyl-Functionalized Polymeric Microspheres Prepared by One-Stage Photoinitiated RAFT Dispersion Polymerization

Department of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, Guangzhou 510006, China
These authors contributed equally to this work.
Authors to whom correspondence should be addressed.
Received: 21 November 2017 / Revised: 4 December 2017 / Accepted: 4 December 2017 / Published: 6 December 2017
(This article belongs to the Special Issue RAFT Living Radical Polymerization and Self-Assembly)
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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. View Full-Text
Keywords: carboxyl-functionalized microspheres; RAFT polymerization; photoinitiated dispersion polymerization carboxyl-functionalized microspheres; RAFT polymerization; photoinitiated dispersion polymerization

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Tan, J.; Li, X.; He, J.; Xu, Q.; Zhang, Y.; Dai, X.; Yu, L.; Zeng, R.; Zhang, L. Carboxyl-Functionalized Polymeric Microspheres Prepared by One-Stage Photoinitiated RAFT Dispersion Polymerization. Polymers 2017, 9, 681.

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