PNIPAAm的合成及结构和温敏性表征  被引量:3

Synthesis,Structure and Characterization of Temperature-responsive Behaviors of PNIPAAm

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作  者:谭鹏[1] 雷华[1] 徐涛[1] 邱瑜[1] 简嫩梅 

机构地区:[1]贵州大学材料与冶金学院,贵州贵阳550025

出  处:《塑料工业》2015年第5期87-89,101,共4页China Plastics Industry

基  金:国家自然科学基金(51463005);贵州省科学技术基金(黔科合J字[2014]2051号及黔科合J字[2014]2054号);贵州省研究生教育创新计划(黔教研合JYSZ字[2014]001)

摘  要:用过硫酸铵(APS)与亚硫酸氢钠(SBS)作为引发剂,在无氮气保护的条件下制备线型聚N-异丙基丙烯酰胺(PNIPAAm)。采用凝胶渗透色谱仪(GPC)、傅立叶变换红外光谱(FTIR)、X射线衍射分析仪(XRD)、紫外分光光度计(UV)、差示扫描量热仪(DSC)表征了聚N-异丙基丙烯酰胺的微观结构,测试了PNIPAAm的最低临界转变温度(LCST)。结果表明,以APS、SBS复配作为引发剂成功合成了PNIPAAm,其LCST为33℃;聚N-异丙基丙烯酰胺的相转变过程是一个可逆过程。The linear poly (N-isopropylaerylamide) (PNIPAAm) was prepared with ammonium persulfate (APS) and sodium bisulfite (SBS) as initiators in the absence of nitrogen protection. Subsequently, the microstructure of the synthesized PNIPAAm were studied by gel permeation chromatography ( GPC ) Fourier transform infrared spectrophotometer ( FTIR ), X-ray Diffraction ( XRD ), ultraviolet spectrophotometer and differential scanning calorimetry (DSC), and the low critical solution temperature (LCST) was tested. The results showed that PNIPAAm was successfully synthesized with the composite initiator of APS and SBS, which had LCST value of 33 ~C and a reversible phase transition process.

关 键 词:聚-N-异丙基丙烯酰胺 表征 温敏性 

分 类 号:O633.22[理学—高分子化学]

 

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