二乙基二烯丙基氯化铵均聚及其与丙烯酰胺或丙烯酸共聚动力学研究

刘立华; 刘汉文; 龚竹青

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二乙基二烯丙基氯化铵均聚及其与丙烯酰胺或丙烯酸共聚动力学研究

研究论文 | 更新时间：2021-03-19

- 二乙基二烯丙基氯化铵均聚及其与丙烯酰胺或丙烯酸共聚动力学研究
- KINETICS STUDIES ON POLYMERIZATION OF DIETHYLDIALLYLAMMONIUM CHLORIDE AND ITS COPOLYMERIZATION WITH ACRYLAMIDE AND ACRYLIC ACID
- 高分子学报 2007年第2期页码：183-189
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- 纸质出版日期：2007-2-20，
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刘立华, 刘汉文, 龚竹青. 二乙基二烯丙基氯化铵均聚及其与丙烯酰胺或丙烯酸共聚动力学研究[J]. 高分子学报, 2007,(2):183-189.

LIU Lihua, LIU Hanwen, GONG Zhuqing. KINETICS STUDIES ON POLYMERIZATION OF DIETHYLDIALLYLAMMONIUM CHLORIDE AND ITS COPOLYMERIZATION WITH ACRYLAMIDE AND ACRYLIC ACID[J]. Acta Polymerica Sinica, 2007,(2):183-189.
刘立华, 刘汉文, 龚竹青. 二乙基二烯丙基氯化铵均聚及其与丙烯酰胺或丙烯酸共聚动力学研究[J]. 高分子学报, 2007,(2):183-189. DOI：

LIU Lihua, LIU Hanwen, GONG Zhuqing. KINETICS STUDIES ON POLYMERIZATION OF DIETHYLDIALLYLAMMONIUM CHLORIDE AND ITS COPOLYMERIZATION WITH ACRYLAMIDE AND ACRYLIC ACID[J]. Acta Polymerica Sinica, 2007,(2):183-189. DOI：

摘要

采用膨胀计法研究了以过硫酸铵为引发剂

二乙基二烯丙基氯化铵（DEDAAC）在水溶液中的均聚及其与丙烯酰胺（AM）和丙烯酸（AA）共聚动力学

测定了相应的聚合表观活化能；采用元素分析法测定了DEDAAC分别与AM和AA在低转化率下共聚物的组成

并采用氯离子选择性电极法测定了DEDAAC-AM共聚物中的氯离子含量

按Kelen-Tudos方法求得了相应的竞聚率.结果表明

DEDAAC均聚速率方程为RP=k［M］0.99［I］0.76

表观活化能Ea=77.00kJ/mol

说明链终止为单基终止和双基终止并存

引发过程与单体浓度无关；DEDAAC与AM在摩尔比为4∶1 时

共聚动力学方程为RP=［M］2.53［I］0.90

表观活化能Ea=67.06 kJ/mol

单体竞聚率为rDE=0.31±0.02、rAM=5.27±0.53；DEDAAC与AA在摩尔比为4∶1 时

共聚动力学方程为RP=k［M］2.94［I］0.83

表观活化能Ea=70.07?kJ/mol

竞聚率为rDE=0.28±0.03、rAA=5.15±0.28；DEDAAC与AM和AA等共聚为非理想共聚

得到的产物均为无规共聚物.

Abstract

The kinetics of diethyldiallylammonium chloride (DEDAAC) polymerization and its copolymerization with acrylamide (AM) and acrylic acid (AA) initiated by ammonium persulfate (APS) in aqueous solution was studied by dilatometer method

and the apparent activation energy was measured.In the meantime

the compositions of copolymers of DEDAAC with AM or AA at low conversion were determined by elemental analysis

and the content of chloride ions of the DEDAAC-AM copolymer was determined by chloride ion-selective electrode method

and the reactivity ratios of monomers in copolymerization were obtained by Kelen-Tudos method.The results show that the polymerization rate equation for DEDAAC is RP=k［M］0.99［I］0.76 and the apparent activation energy is 77.00 kJ/mol

which displays that the chain termination reaction is according to the modes of mono- and bi-molecule termination

and the initiating process is independent of monomer concentration.When the monomer feed ratio n(DEDAAC)∶n(AM) is 4∶1

the copolymerization rate equation for DEDAAC with AM is RP=k［M］2.53［I］0.90

the apparent activation energy is 67.06 kJ/mol

and the values of reactivity ratios rDE and rAM are 0.31±0.02 and 5.27±0.53

respectively.While the copolymerization rate equation for DEDAAC with AA is RP=k［M］2.94［I］0.83 at the monomer feed ratio n(DEDAAC)∶n(AA)= 4∶1

the apparent activation energy is 70.07 kJ/mol

and the values of reactivity ratios rDE and rAA are 0.28±0.03 and 5.15±0.28

respectively.The copolymerization for DEDAAC with AM or AA is a non-ideal copolymerization

and the products are random copolymers.

关键词

二乙基二烯丙基氯化铵（DEDAAC）丙烯酰胺（AM）丙烯酸（AA）聚合动力学表观活化能竞聚率

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