无机粘土做交联剂制备<br /> 聚(N-异丙基丙烯酰胺)微凝胶<br />
Journal Title: Science Paper Online - Year 2007, Vol 2, Issue 5
Abstract
本文以无机粘土（锂蒙脱石）作为物理交联剂，通过无皂乳液聚合制备了一组粒径在140 nm至360 nm之间且具有温敏性的聚（N-异丙基丙烯酰胺）(PNIPAM)微凝胶，并通过红外光谱、X射线衍射、动态光散射对所合成微凝胶的化学结构和温度敏感性进行了表征。研究表明，蒙脱土片层剥离，起到交联剂的作用；合成的微凝胶粒径在150 nm至360 nm之间；随着粘土的增加，粒径先降低后增加，而消溶胀度先增加后降低；所合成的微凝胶仍然具有良好的温敏特性，粘土含量的增加并没有改变微凝胶的相转变温度。
Authors and Affiliations
Qingsong Zhang, Lan Li, Liusheng Zha
Keywords
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