Polymerization Mechanism of Methyl Methacrylate Initiated by Ethyl Acetate/<italic style="font-style: italic">t</italic>-BuP<sub>4</sub>

De-Yong Xia; Qi-Min Jiang; Wen-Yan Huang; Hong-Jun Yang; Xiao-Qiang Xue; Li Jiang; Bi-Biao Jiang

doi:10.1007/s10118-019-2228-x

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Polymerization Mechanism of Methyl Methacrylate Initiated by Ethyl Acetate/t-BuP₄

ARTICLE | Updated：2021-02-18

- Polymerization Mechanism of Methyl Methacrylate Initiated by Ethyl Acetate/t-BuP₄
- Chinese Journal of Polymer Science Vol. 37, Issue 6, Pages: 598-603(2019)
- Affiliations：
  
  a.Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, China
  b.Changzhou University Huaide College, Jingjiang 214500, China
- Author bio：
  
  jiangbibiao@cczu.edu.cn
- Funds：
- DOI：10.1007/s10118-019-2228-x
  CLC：
- Received：11 December 2018，
  
  Revised：2019-1-8，
  
  Accepted：21 January 2019，
  
  Online First：26 February 2019，
  
  Published：2019-06
- Accepted：
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Citation: Xia, D. Y.; Jiang, Q. M.; Huang, W. Y.; Yang, H. J.; Xue, X. Q.; Jiang, L.; Jiang, B. B. Polymerization mechanism of methyl methacrylate initiated by ethyl acetate/t-BuP₄. Chinese J. Polym. Sci. 2019, 37, 598–603 DOI: 10.1007/s10118-019-2228-x.

De-Yong Xia, Qi-Min Jiang, Wen-Yan Huang, et al. Polymerization Mechanism of Methyl Methacrylate Initiated by Ethyl Acetate/t-BuP₄[J]. Chinese Journal of Polymer Science, 2019, 37(6): 598-603. DOI: 10.1007/s10118-019-2228-x.
Citation: Xia, D. Y.; Jiang, Q. M.; Huang, W. Y.; Yang, H. J.; Xue, X. Q.; Jiang, L.; Jiang, B. B. Polymerization mechanism of methyl methacrylate initiated by ethyl acetate/t-BuP₄. Chinese J. Polym. Sci. 2019, 37, 598–603 DOI: 10.1007/s10118-019-2228-x. DOI：

De-Yong Xia, Qi-Min Jiang, Wen-Yan Huang, et al. Polymerization Mechanism of Methyl Methacrylate Initiated by Ethyl Acetate/t-BuP₄[J]. Chinese Journal of Polymer Science, 2019, 37(6): 598-603. DOI: 10.1007/s10118-019-2228-x. DOI：

摘要

Abstract

The anionic polymerization of methyl methacrylate (MMA) was carried out using phosphazene base

-BuP

and ethyl acetate (EA) as the catalyst and the initiator

respectively. Gas chromatography (GC)

size exclusion chromatography (SEC) measurements

and nuclear magnetic resonance (NMR) analyses were used to reveal the polymerization mechanism and to confirm the polymer structure. The results confirmed the proposed polymerization mechanism and the polymer structure

while the initiator efficiency was low. Meanwhile

the initiation by methoxy anion coming from hydrolysis of the ester bond in MMA was also observed. As a result

there is a marked deviation between the theoretical molecular weight and the measured molecular weight

and it is essential to carry out the polymerization at excessive dosage of

-BuP

for preparing polymers with narrow molecular weight distribution.

关键词

Keywords

references

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Polymerization Mechanism of Methyl Methacrylate Initiated by Ethyl Acetate/t-BuP4

DOI：10.1007/s10118-019-2228-x

摘要

Abstract

关键词

Keywords

references

Polymerization Mechanism of Methyl Methacrylate Initiated by Ethyl Acetate/t-BuP₄