A Neutral Supramolecular Hyperbranched Polymer Fabricated from an AB2-Type Copillar[5]arene

被引:76
作者
Wang, Xiaoyang [1 ]
Deng, Hongmei [2 ]
Li, Jian [1 ]
Zheng, Kai [1 ]
Jia, Xueshun [1 ]
Li, Chunju [1 ,3 ]
机构
[1] Shanghai Univ, Dept Chem, Shanghai 200444, Peoples R China
[2] Shanghai Univ, Lab Microstruct, Shanghai 200444, Peoples R China
[3] BNLMS, Beijing 100190, Peoples R China
基金
中国国家自然科学基金;
关键词
hyperbranched polymers; neutral guests; pillararenes; supramolecular chemistry; supramolecular polymers; HOST-GUEST COMPLEXATION; BONDING UREIDOPYRIMIDINONE MOTIF; MOLECULAR RECOGNITION; SELF-ORGANIZATION; CROWN-ETHER; WATER; COPOLYMER; BINDING; PSEUDOROTAXANE; CONSTRUCTION;
D O I
10.1002/marc.201300731
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
A heterotritopic copillar[5]arene monomer by introducing effective neutral guest moieties (methylene chains end-capped with cyano and triazole groups) to a pillar[5]arene macrocycle is prepared. This well-designed AB(2)-type copillar[5]arene contains strong host-guest recognition motifs that are connected with relatively flexible and long linkers, thus efficiently assembles to form supramolecular hyperbranched polymer (SHP) in chloroform solution, which is characterized by various techniques including H-1 NMR, DOSY, viscosity, DLS, and TEM. Particularly, this supramolecular polymer can be effectively depolymerized by adding a competitive butanedinitrile guest.
引用
收藏
页码:1856 / 1862
页数:7
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