ICAR ATRP OF ACRYLONITRILE UTILIZING A MODERATE TEMPERATURE RADICAL INITIATOR

Fei-jun Zhang; Xiao-hui Liu

doi:10.1007/s10118-013-1348-y

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ICAR ATRP OF ACRYLONITRILE UTILIZING A MODERATE TEMPERATURE RADICAL INITIATOR

PAPER | Updated：2023-01-03

- ICAR ATRP OF ACRYLONITRILE UTILIZING A MODERATE TEMPERATURE RADICAL INITIATOR
- Chinese Journal of Polymer Science Vol. 31, Issue 12, Pages: 1613-1622(2013)
- Affiliations：
  
  School of Materials Science and Engineering, Key Lab of Hollow Fiber Membrane Material and Processes of Ministry of Education, Tianjin Polytechnic University, Tianjin 300387, China
- Author bio：
  
  **Xiao-hui Liu (刘晓辉), E-mail: liuxiaohui@tjpu.edu.cn
- Funds：
- DOI：10.1007/s10118-013-1348-y
  CLC：
- Received：18 December 2012，
  
  Revised：2013-01-16，
  
  Accepted：21 January 2013，
  
  Published：2013-12
- Accepted：
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Fei-jun Zhang, Xiao-hui Liu. ICAR ATRP OF ACRYLONITRILE UTILIZING A MODERATE TEMPERATURE RADICAL INITIATOR[J]. Chinese Journal of Polymer Science, 2013, 31(12): 1613-1622.
DOI：

Fei-jun Zhang, Xiao-hui Liu. ICAR ATRP OF ACRYLONITRILE UTILIZING A MODERATE TEMPERATURE RADICAL INITIATOR[J]. Chinese Journal of Polymer Science, 2013, 31(12): 1613-1622. DOI： 10.1007/s10118-013-1348-y.

摘要

Abstract

Initiators for continuous activator regeneration atom transfer radical polymerization (ICAR ATRP) of acrylonitrile was first conducted at various ambient temperatures (30−45 ℃). The key to success is ascribed to the usage of an appropriate low temperature radical initiator (2

2′-azobis(2

4-dimethylvaleronitrile)) and a high reactivity catalytic system (CuBr

/Me

TREN). The molar ratio of Cu catalyst to AN as low as 1:20000 was used to prepare well-defined polyacrylonitrile with controlled molecular weight and a narrow polydispersity index range of 1.08−1.30

while the monomer conversion was up to

ca.

98%. The apparent activation energy of the polymerization was calculated to be 128.45 kJ/mol

suggesting that the polymerization strongly depended on reaction temperature. The very high chain-end functionality of the resultant polymer was confirmed by

H-NMR and GPC analyses as well as chain extension reaction.

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