The effect of monomer ratio and crosslinker concentration on swelling behavior of pH-responsive poly(hydroxymethyl acrylamide-co-acrylamide)

PROCEEDINGS OF THE 6TH INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES 2020 (ISCPMS 2020) Pub Date : 2021-07-23 DOI:10.1063/5.0058725

M. Rizky, N. M. Nizardo

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Abstract

Research of hydrogel and responsive polymer has been developed rapidly. Advance technologies have made it easier to make a hydrogel based on responsive polymers. One area that has been investigated is the pH sensitivity of polymers and hydrogels. In this research, the synthesis and optimization of pH-responsive P(NMA-co-AM) hydrogels by free radical polymerization using methylenebisacrylamide (MBA) as a crosslinker and ammonium persulfate (APS) as initiator, were conducted. The purpose of this research is to investigate the best contexture of P(NMA-co-AM) hydrogels which had the best swelling ratio by varying the monomer ratio and the concentration of crosslinkers. The results of this study showed that the swelling ratio of homopolymer and copolymer hydrogels increased by the increasing number of acrylamide monomer added. The optimum swelling of P(NMA-co-AM) hydrogel was achieved on monomer composition NMA:AM 40:60 with MBA concentration of 4 % and the pH with the highest swelling ratio of P(NMA-co-AM) hydrogels was achieved in pH ranging 5–7.

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单体配比和交联剂浓度对ph响应型聚羟甲基丙烯酰胺-共聚物丙烯酰胺溶胀行为的影响

水凝胶和反应性聚合物的研究得到了迅速发展。先进的技术使基于反应性聚合物的水凝胶的制造变得更加容易。研究的一个领域是聚合物和水凝胶的pH敏感性。本研究以亚甲基双丙烯酰胺(MBA)为交联剂，过硫酸铵(APS)为引发剂，采用自由基聚合法制备ph响应型P(NMA-co-AM)水凝胶，并对其进行了优化。本研究通过改变单体比和交联剂浓度来研究具有最佳溶胀率的P(NMA-co-AM)水凝胶的最佳结构。研究结果表明，均聚物和共聚物水凝胶的溶胀率随丙烯酰胺单体加入量的增加而增加。在NMA:AM 40:60、MBA浓度为4%的条件下，P(NMA-co-AM)水凝胶溶胀率最高的pH值为5 ~ 7。

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PROCEEDINGS OF THE 6TH INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES 2020 (ISCPMS 2020)

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