STUDIES ON THE KINETICS OF SODIUM STYRENESULFONATE POLYMERIZATION AND THE COPOLYMERIZATION WITH ACRYLAMIDE

GAO Baojiao; WANG Xupeng; LI Yanbing

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STUDIES ON THE KINETICS OF SODIUM STYRENESULFONATE POLYMERIZATION AND THE COPOLYMERIZATION WITH ACRYLAMIDE

Research Article | 更新时间：2021-03-19

- STUDIES ON THE KINETICS OF SODIUM STYRENESULFONATE POLYMERIZATION AND THE COPOLYMERIZATION WITH ACRYLAMIDE
- Acta Polymerica Sinica Issue 3, Pages: 453-457(2005)
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- Published：20 June 2005，
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GAO Baojiao, WANG Xupeng, LI Yanbing. STUDIES ON THE KINETICS OF SODIUM STYRENESULFONATE POLYMERIZATION AND THE COPOLYMERIZATION WITH ACRYLAMIDE. [J]. Acta Polymerica Sinica (3):453-457(2005)
DOI：

GAO Baojiao, WANG Xupeng, LI Yanbing. STUDIES ON THE KINETICS OF SODIUM STYRENESULFONATE POLYMERIZATION AND THE COPOLYMERIZATION WITH ACRYLAMIDE. [J]. Acta Polymerica Sinica (3):453-457(2005) DOI：

摘要

采用膨胀计法研究了对苯乙烯磺酸钠(SSS)在水溶液中聚合动力学

确定了聚合速率方程

测定了聚合表观活化能

并研究了对苯乙烯磺酸钠与丙烯酰胺(AM)在水溶液中共聚合的动力学行为

利用聚电解质——共聚物P(SSS-co-AM)与阳离子表面活性剂N

N-三甲基十六烷基溴化铵(CTAB)的复合作用

采用电导滴定法测定了共聚物的组成

从而测得了对苯乙烯磺酸钠与丙烯酰胺的竞聚率.研究结果表明

对苯乙烯磺酸钠聚合速率方程为RP =K[M]1.0 [I]0.53

说明链终止为双基终止方式

引发过程与单体浓度无关;聚合表观活化能为84.96kJ·mol-1;采用Kelen-Tudos方法

求得对苯乙烯磺酸钠(SSS)和丙烯酰胺(AM)两单体的竞聚率分别为rSSS =0.27

rAM =2.21;采用Alfrey-Price经验规则估算了单体苯乙烯磺酸钠的Q、e值为QSSS=0.22

eSSS=0.46.

Abstract

The polymerization kinetics of sodium p-styrenesulfonate (SSS) in aqueous solution has been studied with dilatometer method

the polymerization rate equation was determined．and the polymerization active energy was measured．At the same time

the behavior of the copolymerization between SSS and aerylamide (AM) have also been studied

the composition of the copolymer was determined using the complex reaction conductometric titration method which was founded previously by us through complex reaction of anionic polyelectrolyte with a surfactant cetyl trimethyl ammonium bromide (CTAB)．And the reactivity ratios of SSS and AM were determined．The results show that the polymerization rate equation for SSS is i>Rp=k[M]1.0[I]0.53

which displays that the chain termination reaction is according to the bimolecular termination mode

and the inititate process is independent of monomer concentration

andthe apparent polymerization active energy is 84.97 kJ·mol-1．The reactivity ratios of SSS and AM was calculated by using the Kelen-Tudos method

and they afe rsss=0.27 and rAM=2.21 respectively． Furthermom

the Q and e values of SSS were calculated by usingthe empirical equation of Alfrey-Price

and they are Q=0.22 and e=0.46．respectively．

关键词

对苯乙烯磺酸钠丙烯酰胺聚合动力学溶液共聚合竞聚率

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