Ambient temperature living radical copolymerization of styrene and methyl methacrylate with sodium hypophosphite as reducing agent

Xiao-hui Liu; Hui-na Li; Fei-jun Zhang; Shan Xie; Zhan-jun Liu; Yan-guo Li

doi:10.1007/s10118-015-1584-4

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Ambient temperature living radical copolymerization of styrene and methyl methacrylate with sodium hypophosphite as reducing agent

PAPER | Updated：2022-01-17

- Ambient temperature living radical copolymerization of styrene and methyl methacrylate with sodium hypophosphite as reducing agent
- Ambient Temperature Living Radical Copolymerization of Styrene and Methyl Methacrylate with Sodium Hypophosphite as Reducing Agent
- Chinese Journal of Polymer Science 2015年33卷第2期页码：362-370
- Affiliations：
  
  a.School of Materials Science and Engineering, Tianjin Key Laboratory of Fiber Modification and Functional Fiber, Tianjin Polytechnic University, Tianjin 300387, China
  b.College of Pharmacy, Hebei United University, Tangshan 063000, China
  c.State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
- Author bio：
  
  **Xiao-hui Liu (刘晓辉), E-mail: liuxiaohui@tjpu.edu.cn
  Yan-guo Li (李彦国), E-mail: liyg@ciac.ac.cn
- Funds：
  
  National Natural Science Foundation of China(21074127)
- DOI：10.1007/s10118-015-1584-4
  中图分类号：
- 收稿：2014-07-02，
  
  修回：2014-08-29，
  
  录用：2014-09-18，
  
  纸质出版：2015-02
- Accepted：
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Xiao-hui Liu, Hui-na Li, Fei-jun Zhang, 等. Ambient temperature living radical copolymerization of styrene and methyl methacrylate with sodium hypophosphite as reducing agent[J]. Chinese Journal of Polymer Science, 2015,33(2):362-370.

Xiao-hui Liu, Hui-na Li, Fei-jun Zhang, et al. Ambient Temperature Living Radical Copolymerization of Styrene and Methyl Methacrylate with Sodium Hypophosphite as Reducing Agent[J]. Chinese Journal of Polymer Science, 2015, 33(2): 362-370.
Xiao-hui Liu, Hui-na Li, Fei-jun Zhang, 等. Ambient temperature living radical copolymerization of styrene and methyl methacrylate with sodium hypophosphite as reducing agent[J]. Chinese Journal of Polymer Science, 2015,33(2):362-370. DOI： 10.1007/s10118-015-1584-4.

Xiao-hui Liu, Hui-na Li, Fei-jun Zhang, et al. Ambient Temperature Living Radical Copolymerization of Styrene and Methyl Methacrylate with Sodium Hypophosphite as Reducing Agent[J]. Chinese Journal of Polymer Science, 2015, 33(2): 362-370. DOI： 10.1007/s10118-015-1584-4.

摘要

Abstract

A facile

safe and economical reducing agent

sodium hypophosphite (NaH

·H

has been successfully employed for ambient temperature living radical copolymerization of styrene (St) and methyl methacrylate (MMA). Such effective reducing agent significantly improved the reactivity of low reactive St monomers during the copolymerization

where the reactivity ratios of St and MMA were determined to be 0.50 and 0.36 by Finemann-Ross method. Thus the copolymerizations proceeded fast and showed typical living/controlled features

as evidenced by pseudo first-order kinetics of polymerization

linear increase in molecular weight versus monomer conversion

and low polydispersity index values. Effects of the concentration of reducing agent and the monomer feed ratio on the copolymerization were investigated in detail. Furthermore

gel permeation chromatography and

H-NMR analyses as well as chain extension experiments confirmed the high chain-end functionality of the resultant copolymer.

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