Synthesis and characterization studies of γ-radiation crosslinked poly(acrylic acid/2-acrylamido-2-methyl propane sulfonic acid) hydrogels

被引：7

作者：

Awadallah-F, Ahmed ^{[1
]}

Mostafa, Tahia B. ^{[2
]}

机构：

[1] Natl Ctr Radiat Res & Technol, Cairo, Egypt

[2] Ain Shams Univ, Dept Chem, Univ Coll Women, Cairo, Egypt

来源：

JOURNAL OF POLYMER ENGINEERING | 2014年 / 34卷 / 05期

关键词：

2-acrylamido-2-methyl propane sulfonic acid; gamma-radiation and swelling kinetics; superabsorbent hydrogel; SWELLING BEHAVIOR; SUPERABSORBENT HYDROGELS; HUMATE SUPERABSORBENT; SUPERPOROUS HYDROGELS; MECHANICAL-PROPERTIES; POLY(AMINO ACID)S; WATER; IRRADIATION; COMPOSITES; COPOLYMERS;

D O I：

10.1515/polyeng-2013-0067

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Superabsorbent polymer (SAP) hydrogels were synthesized by copolymerization of acrylic acid and 2-acrylamido-2-methyl propane sulfonic acid and their sodium salts. The effects of reaction variables were optimized. SAPs were treated with chemical reagents. The structures and the morphologies of untreated and treated SAP hydrogels were analyzed by different techniques. The swelling/deswelling kinetics of SAP hydrogels, pH and salt sensitivity were investigated. The results show that these samples imbibed about 4310 +/- 27 g/g in deionized water, 269 +/- 18 g/g in artificial blood and 288 +/- 11 g/g in artificial urine. The highest swelling, reversible pH-responsiveness and salt sensitivity of hydrogels widen their applications.

引用

页码：459 / 469

页数：11

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[1] Water sorption behaviour of highly swelling (carboxy methylcellulose-g-polyacrylamide) hydrogels and release of potassium nitrate as agrochemical [J].