A study on effect of acrylic acid content on swelling behavior of poly(AAm-co-BMA-co-AAc) hydrogels

被引：5

作者：

Gupta, Indu ^{[1
]}

Tomar, Rajiv Singh ^{[1
]}

Nagpal, A. K. ^{[1
]}

Singhal, Reena ^{[1
]}

机构：

[1] Harcourt Butler Technol Inst, Dept Plast Technol, Kanpur 208002, Uttar Pradesh, India

来源：

JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY | 2007年 / 44卷 / 4-6期

关键词：

acrylamide; acrylic acid; N-butyl methacrylate; hydrogels; crosslink density; diffusion coefficient;

D O I：

10.1080/10601320601188133

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Poly(acrylamide-co-Nbutylmethacrylate-co-acrylic acid) [poly(AAm-co-NBMA-co-AAc)] hydrogels were prepared by varying the of acrylic acid content four-fold in hydrogel. The effect of acrylic acid content on swelling behavior of the resulting poly(AAm-co-NBMA-co-AAc) hydrogels was studied, and it was found that the equilibrium swelling ratio increased from 54.47 to 127.03 with increasing the acrylic acid content from 20% to 66% in the feed. Detailed swelling kinetics such as swelling ratio, transport exponent W, diffusion coefficient 'D' were determined and the effect of pH on equilibrium swelling was studied. The hydrogels were also characterized by FTIR, DSC, SEM analysis, and network parameters such as molecular weight between crosslink (Me) and crosslink density (q) were determined, explaining the swelling behavior.

引用

页码：403 / 412

页数：10

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