温度/光双重响应性树枝状单体的合成与表征  

Synthesis and Characterization of a Novel Thermo-Light Dual Responsive Dendritic Monomer

作　　者：杨长安[1] 卢婴 陈玲[1] 李刚勇[1] 

机构地区：[1]湖南理工学院化学化工学院,湖南岳阳414006 [2]湘潭大学化学学院,湖南湘潭411105

出　　处：《精细化工》2016年第6期613-619,共7页Fine Chemicals

基　　金：国家自然科学基金项目(21576076;21106037)~~

摘　　要：通过重氮、还原、取代、醚化、酯化等反应,合成了具有温敏和光敏基团的新型双功能性树枝状单体,采用红外光谱(FTIR)、核磁共振(~1HNMR、^(13)CNMR)、质谱(MS)对目标产物进行了表征;通过紫外可见分光光度计(UVVis)对单体水溶液的温敏性和光敏性进行了研究。结果表明:单体水溶液(1 mg/m L)的低临界溶解温度(LCST)为12.5℃;紫外光照射后,LCST降低了6.3℃,同时,单体水溶液对紫外可见光的吸收具有良好的可逆性。A novel dual functional dendritic monomer containing thermo-responsive and light-responsive groups was designed and prepared via a multi-step process of diazotization,reduction,substitution,etherification,and esterification reaction. The chemical structure of monomer was confirmed by Fourier transform infrared spectroscopy（ FTIR）,nuclear magnetic resonance（^1HNMR and ^13CNMR） and mass spectrometry（ MS） techniques. The thermo-and light-responsive behaviors of the monomer aqueous solution were investigated by ultraviolet and visible spectrophotometry（ UV-Vis）. The results showed that the lower critical solution temperature（ LCST） of the monomer aqueous solution（ 1 mg / m L） was12. 5 ℃,and decreased by 6. 3 ℃ after UV light irradiation. Meanwhile,monomer aqueous solution demonstrated a good reversibility to UV-Vis light absorption.

关 键 词：双重刺激响应性 树枝状单体 温敏基团 偶氮苯光敏基团 功能材料 

分 类 号：O647.2[理学—物理化学]