P(AA-b-PEGMA)  superabsorbents  synthesized      by γ-irradiation method

LI Buqing    1; 2    CHEN Wenming  1  YAN Lifeng  1  1

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P(AA-b-PEGMA) superabsorbents synthesized by γ-irradiation method

更新时间：2021-03-12

- P(AA-b-PEGMA) superabsorbents synthesized by γ-irradiation method
- NUCLEAR TECHNIQUES Issue 12, (2002)
- 作者机构：
  
  1. 中国科学技术大学应用化学系
  2. 中国科学技术大学应用化学系合肥230026安徽省农业科学院原子能所合肥,230031
  3. ,合肥,230026
- 作者简介：
- 基金信息：
- DOI：
  CLC： TQ317
- Published：01 December 2002
- 稿件说明：
移动端阅览
[1]李布青,陈文明,闫立峰.辐射合成AA/PEGMA嵌段共聚高吸水性树脂[J].核技术,2002(12):1045-1050.

LI Buqing 1, 2 CHEN Wenming 1 YAN Lifeng 1 1. P(AA-b-PEGMA) superabsorbents synthesized by γ-irradiation method[J]. Nuclear techniques, 2002, (12): 1045-1050.
[1]李布青,陈文明,闫立峰.辐射合成AA/PEGMA嵌段共聚高吸水性树脂[J].核技术,2002(12):1045-1050. DOI：

LI Buqing 1, 2 CHEN Wenming 1 YAN Lifeng 1 1. P(AA-b-PEGMA) superabsorbents synthesized by γ-irradiation method[J]. Nuclear techniques, 2002, (12): 1045-1050. DOI：

摘要

以聚乙二醇（PEG）为原材料

通过酯化反应制备了双端活化的大单体聚乙二醇双马来酸单酯（PEGMA）

FT -IR证实了产物的结构特征。然后利用它与另一单体丙烯酸（AA）进行辐射引发共聚得到了聚（AA -b -PEGMA）嵌段共聚高吸水性树脂

并对影响其性能的合成条件如单体浓度、比例、辐照剂量等进行了研究。发现该高吸水性树脂具有优良的吸水性能

其吸水率高达3.786× 10 3

吸盐水（0 .15mol/L

NaCl）可达 0 .176× 10 3

并用FT -IR和SEM表征了产物的结构特征。

Abstract

A functional comonomer

sodium polyglycol dimaleate monoester (PEGMA ) made from polyglycol(PEG)

was synthesized by PEG ester reaction with maleic anhydride (MA) catalyzed by p-toluene sulfonic acid. Its structure was dentified with FT-IR. Then the PEGMA macromonomer was mixed with acrylic acid (AA) and neutralized by sodium hydroxide. The mixture solution was irradiated with a 60 Co γ-source and there formed P(AA-b-PEGMA) superabsorbent. Effects of monomer ratio

irradiation dose and total concentration of monomer on absorbency of the superabsorbent were also studied. Its optimum absorbency obtained is 3.786×10 3 for salt-free water and 0.176×10 3 for 0.15 mol/L NaCl solution

respectively. Structure characteristics of the superabsorbent were determined by FT-IR and SEM

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