Synthesis of Poly(ethylene glycol) Functionalized Star-shaped Tricationic Imidazolium Based Ionic Liquid  

作　　者：Di Zhang 殷俊 Fei He Ni-lin Ge Zong-quan Wu 丁运生 

机构地区：[1]Key Laboratory of Advanced Functional Materials and Devices, Anhui Province, Department of Polymer Material and Engineering, School of Chemistry and Chemical Engineering, Hefei University of Technology

出　　处：《Chinese Journal of Polymer Science》2015年第2期245-255,共11页高分子科学（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(Nos.50973025,51373045 and 51303044);Fundamental Research Funds for the Central Universities(2013HGCH0013);Specialized Research Fund for the Doctoral Program of Higher Education(SRFDP,20130111120013);Research Foundation for Returned Overseas Chinese Scholars of the Ministry of Education of China;Anhui Province’s Natural Scientific Foundation(1408085QE80)

摘　　要：We report on the preparation of a well-defined star-shaped tricationic ionic liquid possessing three arms of poly（ethylene glycol） functionalized imidazolium rings. Remarkable solubility was found in most of the organic solvents we used. Thermogravimetric analysis（TGA） exhibited excellent thermal stability and two distinct decomposition temperatures were attributed to two kinds of chemical degradation. Differential scanning calorimetry（DSC） was further employed to investigate the thermal phase transitions, that three different signals（Tg, Tc, and Tm） were shown upon the second heating process. Moreover, CH2Cl2 solution of the ionic liquid expressed an excitation-wavelength dependent fluorescence response, leading to the facile modulation of photoluminescence behavior. This work represents an example of utilizing molecular design to construct novel ionic liquids and endow further potential to be used in the engineering materials.We report on the preparation of a well-defined star-shaped tricationic ionic liquid possessing three arms of poly（ethylene glycol） functionalized imidazolium rings. Remarkable solubility was found in most of the organic solvents we used. Thermogravimetric analysis（TGA） exhibited excellent thermal stability and two distinct decomposition temperatures were attributed to two kinds of chemical degradation. Differential scanning calorimetry（DSC） was further employed to investigate the thermal phase transitions, that three different signals（Tg, Tc, and Tm） were shown upon the second heating process. Moreover, CH2Cl2 solution of the ionic liquid expressed an excitation-wavelength dependent fluorescence response, leading to the facile modulation of photoluminescence behavior. This work represents an example of utilizing molecular design to construct novel ionic liquids and endow further potential to be used in the engineering materials.

关 键 词：Ionic liquid IMIDAZOLE Tricationic Excitation-wavelength dependent Photoluminescence 

分 类 号：O633.5[理学—高分子化学]