温度敏感聚乙烯醇/聚N-异丙基丙烯酰胺核壳微球的制备与表征  

Preparation and characterization of thermo-sensitivepolyvinyl alcohol/poly(N-isopropylacrylamide) microsphere

作　　者：周巍[1] 董伟[1] 田波[1] 刘宇光[1] 侯静[1] 

机构地区：[1]黑龙江省科学院技术物理研究所,哈尔滨150086

出　　处：《黑龙江科学》2016年第10期26-27,共2页Heilongjiang Science

摘　　要：采用反相微乳液聚合法成功地制备出聚乙烯醇/聚N-异丙基丙烯酰胺(PV A/PN IPA M)温敏性核壳微球,并用红外光谱(FT-IR)、激光粒度仪(LPS)和透射电镜(TEM)对PV A/PN IPA M的结构、粒径和形貌进行表征。结果表明,制备的PV A/PN IPA M微球粒径分布均匀,且具有明显核壳结构,微球具有对温度敏感的响应特性,在其低临界溶解温度(LC ST)附近,微球粒径发生变化。Polyvinyl alcohol/poly （ N-isopropylacrylamide） thermo-sensitive microsphere with core-shell structure were synthesized by inverse suspension microemulsion polymerization, the structure, particle size and morphology of PVA/PNIPAM were analyzed by Infrared spectroscopy （ FT-IR）, laser particle size analyzer （ LPS） and transmission electron microscopy （ TEM）. The results indicate that the size op PVA/PNIPAM microsphere have uniform distribution and have obviously core-shell structure, microsphere size change with temperature near the LCST.

关 键 词：反相微乳液聚合 温敏性 核壳微球 

分 类 号：TQ337.1[化学工程—橡胶工业]