CuSO<sub>4</sub>-CATALYZED SELF-INITIATED RADICAL POLYMERIZATION OF 2-(<italic style="font-style: italic">N,N</italic>-DIMETHYLAMINO) ETHYL METHACRYLATE AS AN INTRINSICALLY REDUCING INIMER

Yan Sun; Guang-qun Zhai

doi:10.1007/s10118-013-1317-5

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CuSO₄-CATALYZED SELF-INITIATED RADICAL POLYMERIZATION OF 2-(N,N-DIMETHYLAMINO) ETHYL METHACRYLATE AS AN INTRINSICALLY REDUCING INIMER

PAPER | Updated：2023-01-03

- CuSO₄-CATALYZED SELF-INITIATED RADICAL POLYMERIZATION OF 2-(N,N-DIMETHYLAMINO) ETHYL METHACRYLATE AS AN INTRINSICALLY REDUCING INIMER
- Chinese Journal of Polymer Science Vol. 31, Issue 8, Pages: 1161-1172(2013)
- Affiliations：
  
  Department of Materials Science and Engineering, Changzhou University, Changzhou 213164, China
- Author bio：
  
  **Guang-qun Zhai (翟光群), E-mail: zhai_gq@cczu.edu.cn
- Funds：
- DOI：10.1007/s10118-013-1317-5
  CLC：
- Received：08 October 2012，
  
  Revised：2012-12-11，
  
  Accepted：13 December 2012，
  
  Published：2013-08
- Accepted：
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Yan Sun, Guang-qun Zhai. CuSO₄-CATALYZED SELF-INITIATED RADICAL POLYMERIZATION OF 2-(N,N-DIMETHYLAMINO) ETHYL METHACRYLATE AS AN INTRINSICALLY REDUCING INIMER[J]. Chinese Journal of Polymer Science, 2013, 31(8): 1161-1172. DOI: 10.1007/s10118-013-1317-5.
DOI：

Yan Sun, Guang-qun Zhai. CuSO₄-CATALYZED SELF-INITIATED RADICAL POLYMERIZATION OF 2-(N,N-DIMETHYLAMINO) ETHYL METHACRYLATE AS AN INTRINSICALLY REDUCING INIMER[J]. Chinese Journal of Polymer Science, 2013, 31(8): 1161-1172. DOI: 10.1007/s10118-013-1317-5. DOI：

摘要

Abstract

Since tertiary amines (C

-H) can be oxidized by peroxides and transition metal cations in high oxidation states into C

· radicals to initiate vinylic polymerizations of methacrylates

and 2-(

-dimethylamino)ethyl methacrylate (DMAEMA) form a polymerizable redox initiating pair

in which DMAEMA serves as an intrinsically reducing inimer. CuSO

-catalyzed aqueous self-initiated radical polymerizations of DMAEMA were successfully performed at ambient temperature

via

a continuous Cu

-tertiary amine redox initiation based on catalyst regeneration in the presence of O

. The polymerization kinetics was monitored by gas chromatography and the structure of PDMAEMA was characterized by gelpermeation chromatography

nuclear magnetic resonance spectroscopy

laser light scattering and online intrinsic-viscosity analysis. Both the monomer conversion and the molecular weight of PDMAEMA increase with the reaction while the molecular weight distribution maintains rather broad

as the Cu

-DMAEMA redox-initiation leads to linear PDMAEMA chains with terminal methacryloxyl moieties

and the Cu

-PDMAEMA redox-initiation results in branched chains. The branched topology forms and develops only for the high-MW components of the PDMAEMA. Our results provide a facile strategy to prepare branched polymers from such commercially available intrinsically reducing inimers using a negligible concentration of regenerative air-stable catalysts.

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CuSO4-CATALYZED SELF-INITIATED RADICAL POLYMERIZATION OF 2-(N,N-DIMETHYLAMINO) ETHYL METHACRYLATE AS AN INTRINSICALLY REDUCING INIMER

DOI：10.1007/s10118-013-1317-5

摘要

Abstract

关键词

Keywords

references

CuSO₄-CATALYZED SELF-INITIATED RADICAL POLYMERIZATION OF 2-(N,N-DIMETHYLAMINO) ETHYL METHACRYLATE AS AN INTRINSICALLY REDUCING INIMER