CATALYTIC OXIDATIVE POLYMERIZATION OF(N，N-DIMETHYLAMINO)ETHYL METHACRYLATE WITH CuX/PMDETA

ZHAN Yan; NI Canyan; XIA Yougui; CHEN Huafeng; ZHAI Guangqun; KONG Lizhi

doi:10.3724/SP.J.1105.2010.00185

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CATALYTIC OXIDATIVE POLYMERIZATION OF(N，N-DIMETHYLAMINO)ETHYL METHACRYLATE WITH CuX/PMDETA

Research Article | 更新时间：2021-03-19

- CATALYTIC OXIDATIVE POLYMERIZATION OF(N，N-DIMETHYLAMINO)ETHYL METHACRYLATE WITH CuX/PMDETA
- Acta Polymerica Sinica Issue 2, Pages: 185-191(2010)
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- DOI：10.3724/SP.J.1105.2010.00185
  CLC：
- Published：20 February 2010，
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ZHAN Yan, NI Canyan, XIA Yougui, CHEN Huafeng, ZHAI Guangqun, KONG Lizhi. CATALYTIC OXIDATIVE POLYMERIZATION OF(N，N-DIMETHYLAMINO)ETHYL METHACRYLATE WITH CuX/PMDETA. [J]. Acta Polymerica Sinica (2):185-191(2010)
DOI：

ZHAN Yan, NI Canyan, XIA Yougui, CHEN Huafeng, ZHAI Guangqun, KONG Lizhi. CATALYTIC OXIDATIVE POLYMERIZATION OF(N，N-DIMETHYLAMINO)ETHYL METHACRYLATE WITH CuX/PMDETA. [J]. Acta Polymerica Sinica (2):185-191(2010) DOI： 10.3724/SP.J.1105.2010.00185.

摘要

在添加一定浓度的CuX (X=Cl/Br)/五甲基二亚乙基三胺(PMDETA)后，甲基丙烯酸N，N-二甲氨基乙酯（DMAEMA）于室温下只需暴露于空气中即可聚合形成PDMAEMA.通过一系列对比试验验证了该过程的催化氧化聚合特征，通过改变催化剂浓度与反应温度等反应条件，利用气相色谱、核磁共振和凝胶渗透色谱研究了该聚合过程的动力学和所得PDMAEMA的结构.结果表明，单体转化率与所得聚合物分子量均随反应时间的延长而逐渐增加，过高或者过低浓度的CuX/PMDETA均无法催化该聚合过程，所得聚合物具有与普通线型PDMAEMA类似的化学结构.我们提出了一个假设性的机理以解释此现象.

Abstract

It was observed that upon addition a certain amount of CuX (X = Cl/Br)/pentamethyldiethylenetriamire (PMDETA) in the presence of air

Ndimethylamino)ethyl methacrylate (DMAEMA) can steadily undergo catalytic oxidative polymerization at ambient temperature.The results from gas chromatography (GC)

nuclear magnetic resonnance spectroscopy (1H-NMR) and gel-permeation chromatography (GPC) showed that both the monomer conversion and the number-average molecular weight increased gradually with the reaction time; the asprepared PDMAEMA had a structure silimar with that prepared via conventional radical polymerization.A mechanism was proposed to rationalize the above findings.

关键词

甲基丙烯酸NN-二甲氨基乙酯(DMAEMA)催化氧化聚合五甲基二乙基三胺

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