辉光放电电解等离子体引发合成CdTe/CdS-PNIPAM复合水凝胶及荧光温敏特性  

Glow Discharge Electrolysis Plasma Induced Synthesis of CdTe/CdS-PNIPAM Hybrid Hydrogel and Its Thermosensitive Flourescent Performance

作　　者：张文明[1] 崔宁 丁跃迪 杨畅[1] 智胜辉 胡国印 杨昆[2] 

机构地区：[1]河北大学物理科学与技术学院 [2]河北大学质量技术监督学院,河北保定071002

出　　处：《高分子材料科学与工程》2016年第8期11-15,共5页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(21201053);河北省青年基金(A2015201050);河北大学研究生创新资助项目(X2016065;X2016066)

摘　　要：利用辉光放电电解等离子体引发制备出CdTe/CdS-PNIPAM复合水凝胶。采用红外光谱、透射电镜、差热分析和荧光光谱对其结构、形态、相转变温度和荧光性能进行表征,同时考察了水凝胶的溶胀率、温敏性能和荧光可逆行为。结果表明,CdTe/CdS量子点均匀分散,且与温敏单体通过配位结合在水凝胶网络中,复合水凝胶有良好的透明性和荧光性,相转变温度为32.5℃,复合水凝胶在20℃和40℃的荧光强度分别为1490 a.u.和20 a.u.,经5次加热-冷却循环后荧光强度变化不大,具有良好的荧光可逆性能。The CdTe/CdS-PNIPAM hybrid hydrogels were prepared by glow discharge electrolysis plasma. The structure, micro morphology, LCST and fluorescence.characterize of hybrid hydrogels were investigated by FT-IR, TEM, DSC and photoluminescence （PL） intensity, as well as by determination of swelling, temperature sensibility and fluorescent reversible behaviors. The results show that the CdTe/CdS is homogeneous, and combines with monomer through coordination in network of hydrogels. The hybrid hydrogels exhibit favourable transparency and fluorescence. The phase transition temperature of hybrid hydrogels is 32.5 ~. The fluorescence intensity of hybrid hydrogels is 1490 a.u. and 20 a.u. at 20 ℃ and 40 ℃, respectively. The hybrid hydrogels have well reversible fluorescent performance and exhibit good fluorescent prdperty after cooling-heating cycles.

关 键 词：CdTe/CdS N-异丙基丙烯酰胺 复合水凝胶 荧光性能 温敏性能 

分 类 号：TQ316.31[化学工程—高聚物工业]