A novel supramolecular graft copolymer via cucurbit[8]uril-based complexation and its self-assembly |
| |
| Authors: | Fuji Sakai Zhong-Wei Ji Jiang-Hua Liu Guo-Song Chen Ming Jiang State |
| |
| Institution: | Key Laboratory of Molecular Engineering of Polymers,Department of Macromolecular Sciences,Fudan University,Shanghai 200433,China |
| |
| Abstract: | A novel supramolecular graft copolymer (SGP) composed of viologen-containing copolymer (P(DMA-co-diEV)) as the main chain and Np ended PNIPAM (Np-PNIPAm) as the grafts is prepared (DMA: N,N-dimethylacryamide, diEV: ethylviologen dimer, Np: naphthalene, PNIPAM: poly(N-isopropylacrylamide)). The grafting is based on the triple complexation among a host of cucurbit8]uril (CB8]) and two guests of diEV and Np, which is characterized by UV–vis spectra and ITC. Temperature sensitive property of PNIPAm moiety allows SGP to self-assemble into non-covalently connected micelle (NCCM) at high temperature. The micelles are sensitive to reducing agents, for example Na2S2O3, which breaks the current inclusion complex pair and induces aggregation. |
| |
| Keywords: | Macromolecular self-assembly Inclusion complexation Thermo responsive polymer Cucurbit[8]uril |
| 本文献已被 CNKI ScienceDirect 等数据库收录！ |
|
