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Facile Preparation of Monodisperse Poly(2‐hydroxyethyl acrylate)‐Grafted Poly(methyl methacrylate) Microspheres via Photoinitiated RAFT Dispersion Polymerization |
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| Authors: | Jianbo Tan Yicheng Peng Dongdong Liu Chundong Huang Mingguang Yu Dan Jiang Li Zhang |
| Affiliation: | 1. Department of Polymeric Materials and Engineering, School of Materials and Energy, Guangdong University of Technology, Guangzhou, China;2. Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, Guangzhou, China;3. School of Chemistry and Chemical Engineering, Sun Yat‐Sen University, Guangzhou, China;4. Research Resources Center, South China Normal University, Guangzhou, China |
| Abstract: | Highly monodisperse poly(2‐hydroxyethyl acrylate)‐grafted poly(methyl methacrylate) (PMMA) microspheres are prepared by a facile photoinitiated dispersion polymerization in ethanol/water mixtures at room temperature. Poly(2‐hydroxyethyl acrylate) homopolymers with different molecular weights are synthesized via reversible addition‐fragmentation chain transfer (RAFT) solution polymerization and employed as steric stabilizers in photoinitiated dispersion polymerization. The effect of macro‐RAFT agent (both concentration and molecular weight) on particle diameter is studied in detail. Kinetic study indicates that the polymerization proceeded rapidly with 96% yield being reached with 1 h of UV irradiation. Finally, the obtained hydroxyl‐rich PMMA microspheres are used as building blocks for the preparation of covalently cross‐linked colloidosomes.  |
| Keywords: | photoinitiated dispersion polymerization poly(2‐hydroxyethyl acrylate) polymeric microspheres |