KINETICS OF RADIATION-INDUCED INVERSE EMULSION POLYMERIZATION OF SODIUM ACRYLATE SOLUTION

Zhang Zhicheng; Jiang Peiyun; Zhang Manwei

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KINETICS OF RADIATION-INDUCED INVERSE EMULSION POLYMERIZATION OF SODIUM ACRYLATE SOLUTION

更新时间：2023-04-23

- KINETICS OF RADIATION-INDUCED INVERSE EMULSION POLYMERIZATION OF SODIUM ACRYLATE SOLUTION
- Journal of Radiation Research and Radiation Processing Vol. 7, Issue 3, Pages: 45-49(1989)
- 作者机构：
  
  1.中国科技大学，合肥
- 作者简介：
- 基金信息：
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Zhang Zhicheng, Jiang Peiyun, Zhang Manwei. KINETICS OF RADIATION-INDUCED INVERSE EMULSION POLYMERIZATION OF SODIUM ACRYLATE SOLUTION. [J]. Journal of Radiation Research and Radiation Processing 7(3):45-49(1989)
DOI：

Zhang Zhicheng, Jiang Peiyun, Zhang Manwei. KINETICS OF RADIATION-INDUCED INVERSE EMULSION POLYMERIZATION OF SODIUM ACRYLATE SOLUTION. [J]. Journal of Radiation Research and Radiation Processing 7(3):45-49(1989) DOI：

摘要

本文研究了,60,Co γ辐射引发丙烯酸钠反相乳液聚合动力学。白火油为分散介质SPAN 80为乳化剂，聚合温度23—39℃。用自动记录膨胀计跟踪聚合反应进程。与常规乳液聚合不同，其转化率-时间曲线呈S形，聚合过程不出现明显恒速期。最大聚合速度与剂量率的0.8次方、起始单体浓度的1.6次方、乳化剂浓度（在白火油中的重量百分数）的0.2次方成正比。聚合反应活化能为16.7 kJ/mol（23—39℃）。考察了剂量率、起始单体浓度和乳化剂浓度对聚合物分子量的影响。并对成核历程和动力学作了讨论。

Abstract

The kinetics of inverse emulsion polymerization of sodium acrylate solution has been studied at 23-39℃ with Cobalt-60 Gamma initiation dilatometrically. The conversion-time curves are generally S-shaped. For maximum rate of polymerization, the following kinetic expression has been determined for the conditions investigated:,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42649340&type=,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42649342&type=,http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=42649341&type=,The overall activation energy for polvmerization rate(E,a,) is (16.7 kJ/mol)(23-39℃). The effects of dose rate, monomer concentration and emulsifier concentration on molecular weights of pdymers have been examined. Discussions on nucleation mechanism and kinetics have been taken.

关键词

反相乳液聚合丙烯酸钠辐射引发聚合反应

Keywords

Inverse emulsion polymerizationSodium acrylateRadiation-induced polymerization

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