STUDY ON CATALYZED POLYMERIZATION OF VAc BY COPPER ELECTROPOLYURUSHIOL

TANG Jieyuan; ZHANG Wengong; GAO Feng

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STUDY ON CATALYZED POLYMERIZATION OF VAc BY COPPER ELECTROPOLYURUSHIOL

Research Article | 更新时间：2021-03-19

- STUDY ON CATALYZED POLYMERIZATION OF VAc BY COPPER ELECTROPOLYURUSHIOL
- Acta Polymerica Sinica Issue 4, Pages: 419-425(2002)
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- Published：20 August 2002，
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TANG Jieyuan, ZHANG Wengong, GAO Feng. STUDY ON CATALYZED POLYMERIZATION OF VAc BY COPPER ELECTROPOLYURUSHIOL. [J]. Acta Polymerica Sinica (4):419-425(2002)
DOI：

TANG Jieyuan, ZHANG Wengong, GAO Feng. STUDY ON CATALYZED POLYMERIZATION OF VAc BY COPPER ELECTROPOLYURUSHIOL. [J]. Acta Polymerica Sinica (4):419-425(2002) DOI：

摘要

将电化学聚合方法得到的聚合漆酚 (EPU)与氯化铜异丙醇溶液作用生成电化学聚合漆酚铜配合物(EPU-Cu2+) .采用顺磁共振波谱 (ESR)、红外光谱 (FT-IR)、XPS光电子能谱、原子发射光谱 (AES)、元素分析及AES等手段进行表征

确定该配合物的结构即每个铜离子与EPU分子中二个链节单元的羟基发生配位 .配合物中铜含量达 8.63% .实验表明

电化学聚合漆酚铜 (EPU-Cu2+)配合物膜在室温下的Na2SO3水体系 (pH=7)中能催化引发醋酸乙烯酯 (VAc)按自由基加聚反应历程进行聚合 .讨论了温度、Na2SO3浓度、VAc浓度和EPU-Cu2+ 膜用量对聚合速率、诱导时间的影响

求得聚合速率的表达式Rp=0.07e-2825/RT[VAc]1.54[Na2SO3]0.5

实验结果表明

EPU-Cu2+ 配合物膜催化引发醋酸乙烯酯 (VAc)聚合的诱导期为122s

反应24h后PVAc得率为79%

Mw =1.26×106

Mn=2.63×105

多分散性系数为4.79.

Abstract

The electroconductive polymer with new function and characteristic can be synthesized by the electrochemical polymerization．This new functional material can be widely used in catalyst

electrochemical sensor and electroanalysis etc．So the film of EPU-Cu2+ coordination polymer was obtained by the reaction between CuCl2 in isopropyl alcohol solution and EPU．The EPU-Cu2+ film was characterized by ESR

FT-IR

XPS

elemental analysis and AES

and the composition and structure of the film were determined．Each Cu2+ ion is coordinated by hydroxyl from two units in EPU molecule．The Cu2+ content in the coordination polymer is 8.63％．The experiments indicated that

the EPU-Cu2+ film activated by Na2SO3 can catalyze polymerization of VAc in water phase at room temperature．The effects of temperature

concentration of Na2SO3 and VAc

weight of copper electropolyurushiol complex membrane on the polymerization rate and induction time were investigated．The polymerization rate equation can be expressed as：Rp=0.07e-2825/RT[VAc]1.54[Na2SO3]0.5．The experimental results indicate：the induction period for polymerization is 122 s

the yield of VAc is equal to abeut 79％ after 24 h

and Mw

Mn and Mw／Mn of PVAc is l.26×106

2.63×105 and 4.79

respectively．

关键词

漆酚电化学聚合配合物配位催化醋酸乙烯酯(VAc)聚合反应

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