Kinetics of acrylamide and 2-methylacryloylxyethyltrimethyl ammonium chloride in inverse emulsion polymerization

CHEN Yong; SHAN Guorong

doi:10.11949/j.issn.0438-1157.20170870

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Kinetics of acrylamide and 2-methylacryloylxyethyltrimethyl ammonium chloride in inverse emulsion polymerization

更新时间：2025-12-10

- Kinetics of acrylamide and 2-methylacryloylxyethyltrimethyl ammonium chloride in inverse emulsion polymerization
- CIESC Journal Issue 2, Pages: 563-569(2018)
- 作者机构：
  
  化学工程联合国家重点实验室, 浙江大学化学工程与生物工程学院,浙江,杭州,310027
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20170870
  CLC： Q326.4
- Online First：05 February 2018，
  
  Published：05 February 2018
- 稿件说明：
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CHEN Yong, SHAN Guorong. Kinetics of acrylamide and 2-methylacryloylxyethyltrimethyl ammonium chloride in inverse emulsion polymerization[J]. CIESC Journal, 2018, (2): 563-569.
DOI：

CHEN Yong, SHAN Guorong. Kinetics of acrylamide and 2-methylacryloylxyethyltrimethyl ammonium chloride in inverse emulsion polymerization[J]. CIESC Journal, 2018, (2): 563-569. DOI： 10.11949/j.issn.0438-1157.20170870.

摘要

以丙烯酰胺（AM）和甲基丙烯酰氧乙基三甲基氯化铵（DMC）为单体，失水山梨糖醇脂肪酸酯（Span 80）和失水山梨醇单油酸酯聚氧乙烯醚（Tween 80）为乳化剂，液体石蜡为油相，2，2'-偶氮二异丙基咪唑啉二盐酸盐（VA-044）为引发剂，研究AM与DMC反相乳液聚合动力学，反相乳液聚合速率方程为Rp=k[M]2.12[I]0.55[E]0.65，AM与DMC反相乳液聚合表观活化能为80.65 kJ·mol-1。通过反相乳液聚合速率随时间的变化关系得出其成核机理倾向于单体液滴成核。用Fireman-Ross法研究了共聚单体竞聚率，分别为rAM=0.23、rDMC=1.93，AM与DMC在聚合物链上发生无规共聚反应。单体量增大、引发剂量减少、乳化剂量增大、聚合温度降低均使共聚产物的特性黏数增大。

Abstract

Inverse emulsion polymerization kinetics of acrylamide (AM) and 2-methylacryloylxyethyltrimethyl ammonium chloride (DMC) has been investigated by using the mixture of sorbitan monooleate (Span 80) and polyethylene glycol sorbitan monooleate (Tween 80) as the composite emulsifier

liquid paraffin as the oil phase and 2

2'-azobis[2-(2-imidazolin-2-yl) propane]-dihydrochloride as the initiator. The rate equation of AM and DMC inverse emulsion polymerization could be represented as Rp=k[M]2.12[I]0.55[E]0.65

and the apparent activation energy of AM and DMC inverse emulsion polymerization was 80.65 kJ·mol-1. Relationship of reaction rate change in AM and DMC inverse emulsion polymerization with time indicated that the nucleation mechanism tended to droplet nucleation. Monomer reactivity ratios of AM and DMC were determined as rAM=0.23

rDMC=1.93 by Fineman-Ross methods. The results showed that random copolymerization of AM and DMC occurred on the polymer chains. The intrinsic viscosity of copolymer could be increased by enhancing the content of monomer

decreasing the dose of initiator

increasing the amount of emulsifier and reducing the reaction temperature.

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