多重响应性石墨烯主客体超分子聚合物  

Multi-stimuli responsive graphene-containing host-guest supramolecular polymers

作　　者：袁超 严锋[2] 储富强[3] 陶永新[4] YUAN Chao;YAN Feng;CHU Fuqiang;TAO Yongxin(Jiangnan Graphene Research Institute,Changzhou 213149,China;College of Chemistry,Chemical Engineering and Materials Science,Soochow University,Suzhou 215123,China;Assets Management Co.,Ltd.,Changzhou University,Changzhou 213164,China;School of Food Science and Technology,Changzhou University,Changzhou 213164,China)

机构地区：[1]江南石墨烯研究院,江苏常州213149 [2]苏州大学材料与化学化工学部,江苏苏州215123 [3]常州大学资产经营管理有限公司,江苏常州213164 [4]常州大学食品学院,江苏常州213164

出　　处：《苏州科技大学学报（自然科学版）》2021年第2期50-55,共6页Journal of Suzhou University of Science and Technology（Natural Science Edition）

基　　金：国家自然科学基金面上项目(21775013)。

摘　　要：通过β-环糊精(β-CD)修饰的氧化石墨烯(GO)与离子液体(IL)型不对称双客体(包含二茂铁(Fc)和双(三氟甲基-磺酰基)基团)之间的主客体相互作用,制备了具有多重响应的石墨烯超分子聚合物。这种超分子聚合物具有LCST行为,并利用温度、电氧化还原反应实现了可逆的澄清-浑浊溶液相变转变。由于IL双客体的固有导电特性,所以在施加电压进行电氧化还原控制时无需添加额外的支持电解质。Supramolecular polymers with multi-stimuli responsiveness were fabricated through host-guest inter-actions between a host compound containingβ-cyclodextrin(β-CD)modified graphene oxide and an ionic liquid(IL)type asymmetric gemini gues,containing both ferrocene(Fc)and bis(trifluoromethyl-sulfonyl)imide(TFSI-)as the respectiveα-andω-guest groups.This kind of supramolecular polymers has LCST behavior,and realizes the reversible clear-to-turbid and turbid-to-clear transtions for the solution using temperature and electric redox reaction.Due to the inherent conductive properties of the IL type gemini guest,the reversible transtions for the solution can be electrochemically controlled by the applied voltage without using additional supporting electrolytes.

关 键 词：氧化石墨烯 离子液体 主客体作用 多重响应性 LCST 

分 类 号：TQ63[化学工程—精细化工]