Synthesis of Monodisperse PMMA Microspheres by Photoinitiated RAFT Dispersion Polymerization

Fu Li-li; Bai Yu-hao; Zhang Xue-chao; Tan Jian-bo; Zhang Li

doi:10.12052/gdutxb.160029

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Synthesis of Monodisperse PMMA Microspheres by Photoinitiated RAFT Dispersion Polymerization

更新时间：2026-05-27

- Synthesis of Monodisperse PMMA Microspheres by Photoinitiated RAFT Dispersion Polymerization
- Vol. 34, Issue 2, Pages: 34-39,47(2017)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：10.12052/gdutxb.160029
  CLC： TQ323.8
- Online First：09 March 2017，
  
  Published：2017
- 稿件说明：
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付黎黎, 柏宇豪, 张雪超, 谭剑波, 张力. RAFT光引发分散聚合制备单分散PMMA微球[J]. 广东工业大学学报, 2017, 34(2): 34-39,47.

Fu Li-li, Bai Yu-hao, Zhang Xue-chao, et al. Synthesis of Monodisperse PMMA Microspheres by Photoinitiated RAFT Dispersion Polymerization[J]. 2017, 34(2): 34-39,47.
付黎黎, 柏宇豪, 张雪超, 谭剑波, 张力. RAFT光引发分散聚合制备单分散PMMA微球[J]. 广东工业大学学报, 2017, 34(2): 34-39,47. DOI： 10.12052/gdutxb.160029.

Fu Li-li, Bai Yu-hao, Zhang Xue-chao, et al. Synthesis of Monodisperse PMMA Microspheres by Photoinitiated RAFT Dispersion Polymerization[J]. 2017, 34(2): 34-39,47. DOI： 10.12052/gdutxb.160029.

摘要

在乙醇/水的反应介质中，通过RAFT光分散聚合制备了聚甲基丙烯酸甲酯（PMMA）微球.探究了RAFT光分散聚合机理，研究了反应条件对微球粒径及粒径分布的影响.结果表明：RAFT光分散聚合的成核期为60 min左右.光引发剂浓度和稳定剂浓度对微球均匀性影响不大；RAFT试剂质量浓度为0.25%~0.75%，能够获得单分散微球；微球粒径随单体浓度增加或者反应介质中乙醇含量的增加而增大.

Abstract

In this study

poly (methyl methacrylate) (PMMA) microspheres were synthesized by photoinitiated RAFT dispersion polymerization in an ethanol/water mixture. The mechanism of photoinitiated RAFT dispersion polymerization was investigated

and the effects of reaction conditions on microspheres size and size distribution studied. The results showed that the nucleation of photoinitiated RAFT dispersion polymerization was at around 60 min. The concentrations of photoinitiator and stabilizer had a little influence on the particle uniformity. Monodisperse microspheres were obtained at RAFT agent concentrations ranging from 0.25% to 0.75%. It was found that the diameter of microspheres became larger as the monomer concentration or the content of ethanol in the medium increased.

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references

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