Facile Preparation of Monodisperse Poly(2‐hydroxyethyl acrylate)‐Grafted Poly(methyl methacrylate) Microspheres via Photoinitiated RAFT Dispersion Polymerization. Issue 15 (17th May 2016)

• Record Type: Journal Article
• Authors: Tan, Jianbo; Peng, Yicheng; Liu, Dongdong; Huang, Chundong; Yu, Mingguang; Jiang, Dan; Zhang, Li
• Is Part Of: Macromolecular chemistry and physics. Volume 217:Issue 15(2016:Aug.)
• Page Start: 1723
• Page End: 1728
• Publication Date: 2016-05-17
• Subjects: photoinitiated dispersion polymerization -- poly(2‐hydroxyethyl acrylate) -- polymeric microspheres; Polymers -- Periodicals; Polymerization -- Periodicals; Synthetic products -- Periodicals; Macromolecules -- Periodicals; 547.7
• DOI: 10.1002/macp.201600176
• Languages: English
• ISSNs: 1022-1352

Abstract

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. Abstract : Uniform poly(2‐hydroxyethyl acrylate)‐grafted poly(methyl methacrylate) (PMMA) microspheres are prepared by a photoinitiated dispersion polymerization in ethanol/water mixtures at room temperature using poly(2‐hydroxyethyl acrylate) macro‐RAFT agents. The obtained PMMA microspheres can be used as building blocks for the preparation of covalently cross‐linked colloidosomes.