The preparation of crosslinking polyacrylate by <italic style="font-style: italic">γ</italic>-irradiation

Yizheng Ma; Maoqing Chen; Dawei You; Yuanlong Ye; Dakuan Sun

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The preparation of crosslinking polyacrylate by γ-irradiation

更新时间：2022-08-16

- The preparation of crosslinking polyacrylate by γ-irradiation
- Nuclear Techniques Vol. 12, Issue 1, (1989)
- 作者机构：
  
  中国科学院上海原子核研究所
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：30 October 1987，
  
  Published：1989-01
- 稿件说明：
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Yizheng Ma, Maoqing Chen, Dawei You, et al. The preparation of crosslinking polyacrylate by γ-irradiation[J]. Nuclear techniques, 1989, 12(1): 19-23.
DOI：

Yizheng Ma, Maoqing Chen, Dawei You, et al. The preparation of crosslinking polyacrylate by γ-irradiation[J]. Nuclear techniques, 1989, 12(1): 19-23. DOI：

摘要

本工作用

射线辐照中浓度丙烯酸水溶液制备交联型聚丙烯酸，研究辐照剂量、剂量率、单体浓度、添加剂等对聚合－交联反应的影响，测定了聚丙烯酸（盐）的吸水性、溶胀度及对其他离子的吸附能力。实验结果表明，当剂量率在1×10

-2×10

Gy/h范围内，本体系的聚合－交联反应主要受辐照剂量控制。辐照60%丙烯酸水溶液时，其凝胶剂量为62Gy。在同一辐照剂量下，凝胶含量随着单体浓度的增加而增加。当辐照剂量为3×10

Gy、单体浓度为70%时，凝胶含量可达79.2%。用本方法制备的交联型聚丙烯酸（盐）有较好的溶胀能力及吸水性，尤其是当凝胶量为20%时，其吸水率可高达千倍以上，因而可望成为超吸水材料

Abstract

The preparation of crosslinking polyacrylate gels by

-raу irradiation of acrylic acid(AA) has been described. The effects of absorbed dose

dose rate

concentration of monomer and additive agent on polymerization and crosslinking reaction have been investigated. The gel contents

swelling capacities and water absorbability of the produced polyacrylate have been determined.

The results have shown that the polymerization-crosslinking reaction depends on absorbed dose mainly for dose rate of 10

to 2×10

Gy/h

The gel dose is 62Gy in the 60% (AA) H

O system. The gel amount is increased with the increase of monomer concentrations

and can reach to 79.2% with absorbed dose of 2×10

Gy for the 70% (AA) -H

O system.

The water absorbability for dry crosslinking polyacrylate at room temperature is found to be more than 1000.

关键词

Keywords

references

L. A. Gagliemelli et al . , Appl. polym. sci . , 13 （ 1969 ）, 2007 .

U. S. patert, 4056502 , 1977 .

Bengt et al . , Polymer Bulletin , 3 （ 1981 ） 87 .

U. S. patert, 3669103、3670731 , 1972 .

黄美玉等，高分子通讯，（ 1984 ）, 2 : 129 .

细田喜一，高分子， 31 （ 1982 ）, 308 。

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The preparation of crosslinking polyacrylate by γ-irradiation

DOI：

摘要

Abstract

关键词

Keywords

references