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标题：Green Synthesis of pH Sensitive Polymer Hydrogel-Silver Nanocomposites and its Applications as Body Water Retainers and Stomach Bulking Agents
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作者：Gulsonbi M ; Jaisankar V
期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2016
期号：NCIC
页码：71
出版社：S&S Publications
摘要：Hydrogels are macromolecular networks able to absorb and release water in response to specificenvironmental stimuli. Such stimuli sensitive behavior of hydrogels prompted to synthesize biodegradable superabsorbent polymeric hydrogel based on cross-linked poly (acrylamide) prepared through an optimized rapid redoxsolution polymerization with N,N’-methylenebisacrylamide (MBA) in presence of carboxymethylcellulose (CMC).Silver nanoparticles have been obtained within hydrogel networks as nanoreactors via insitu reduction of silver nitrateusing AzadirachtaIndica (neem) plant extract under atmospheric conditions. The synthesized hydrogel-silvernanocomposites were characterized by UV, XRD, EDX, SEM and TEM. Effect of pH on swelling capabilities wasinvestigated. Results indicate that pH response of hydrogel-silver nanocomposites in acidic and basic environmentsmade it suitable for body water retainers and stomach bulking agents.
关键词：Hydrogel; silver nanoparticles; environment friendly; pH sensitive; swelling agent.