DEPENDENCE OF ACRYLONITRILE POLYMERIZATION KINETICS ON THE COMPOSITION OF POLYAMIDOXIME-THIOUREA SYSTEM

WU Jinyuan; YANG Chaoxiong; ZHANG Guangzhao

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DEPENDENCE OF ACRYLONITRILE POLYMERIZATION KINETICS ON THE COMPOSITION OF POLYAMIDOXIME-THIOUREA SYSTEM

Papers | Updated：2021-06-21

- DEPENDENCE OF ACRYLONITRILE POLYMERIZATION KINETICS ON THE COMPOSITION OF POLYAMIDOXIME-THIOUREA SYSTEM
- Vol. 11, Issue 3, Pages: 255-261(1993)
- Affiliations：
  
  1. Guangzhou Institute of Chemistry, Academia Sinica,Guangzhou,510650
  2.   Academia Sinica
  3.   Guangzhou
  4.   510650
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：20 September 1993
- Accepted：
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[1]吴锦远,杨超雄,张广照.DEPENDENCE OF ACRYLONITRILE POLYMERIZATION KINETICS ON THE COMPOSITION OF POLYAMIDOXIME-THIOUREA SYSTEM[J].Chinese Journal of Polymer Science,1993,{4}(03):255-261.

WU Jinyuan, YANG Chaoxiong, ZHANG Guangzhao. DEPENDENCE OF ACRYLONITRILE POLYMERIZATION KINETICS ON THE COMPOSITION OF POLYAMIDOXIME-THIOUREA SYSTEM[J]. 1993, 11(3): 255-261.
[1]吴锦远,杨超雄,张广照.DEPENDENCE OF ACRYLONITRILE POLYMERIZATION KINETICS ON THE COMPOSITION OF POLYAMIDOXIME-THIOUREA SYSTEM[J].Chinese Journal of Polymer Science,1993,{4}(03):255-261. DOI：

WU Jinyuan, YANG Chaoxiong, ZHANG Guangzhao. DEPENDENCE OF ACRYLONITRILE POLYMERIZATION KINETICS ON THE COMPOSITION OF POLYAMIDOXIME-THIOUREA SYSTEM[J]. 1993, 11(3): 255-261. DOI：

摘要

正

The polymerization of acrylonitrile （AN） initiated by polypropylene based-polyamidoxime （PPAO）-thiourea （TU） system was investigated at [TU]/[PPAO]

0.5 molar ratio. It shows that the variation of the concentrations of PPAO

thiourea and nitric acid does not exert an observable influence on the reaction rate. The overall rate of polymerization （R

） isR

= 2.07e

-7

800/RT

[ AN]

2.0

The zero order dependence on PPAO and thiourea concentrations and the lowest value of the collision frequence factor were considered to be a feature of the primary radical termination.

Abstract

The polymerization of acrylonitrile （AN） initiated by polypropylene based-polyamidoxime （PPAO）-thiourea （TU） system was investigated at [TU]/[PPAO]

0.5 molar ratio. It shows that the variation of the concentrations of PPAO

thiourea and nitric acid does not exert an observable influence on the reaction rate. The overall rate of polymerization （R

） isR

= 2.07e

-7

800/RT

[ AN]

2.0

The zero order dependence on PPAO and thiourea concentrations and the lowest value of the collision frequence factor were considered to be a feature of the primary radical termination.

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