微凝胶增强两性复合水凝胶的制备与性能

Synthesis and Characterization of MicrogelReinforced Polyampholyte Hydrogels

将核壳微凝胶包埋在两性基质中,制备了复合水凝胶(CAH)。研究发现,利用微凝胶与聚合物链之间的物理缠结作用,可以使复合凝胶具有致密的网络结构,力学性能显著提高;复合凝胶对p H和离子强度敏感,呈现出典型的两性聚电解质凝胶的溶胀行为。同时微凝胶的存在和特殊的复合结构,可赋予CAH两性凝胶基质所不具有的响应性,并实现在高温下快速响应。

The composite polyampholyte hydrogels （CAH） were prepared particles into a bulk polyampholyte matrix. CAH gels with uniform and tight mechanical performance due antipolyelectrolyte effect and Meanwhile, CAH gels show to the entanglement between microgels and pH-sensitivity. And ionic strength drastically rapid shrinking rate and transmittance switch by inserting core-shell microgel network structure have excellent network chains, and exhibit an affects their swelling behaviors. in response to the temperature change as a result of the incorporation of microgel particles.