Citation: Fuji Sakai, Zhong-Wei Ji, Jiang-Hua Liu, Guo-Song Chen, Ming Jiang. A novel supramolecular graft copolymer via cucurbit[8]uril-based complexation and its self-assembly[J]. Chinese Chemical Letters, ;2013, 24(07): 568-572. shu

A novel supramolecular graft copolymer via cucurbit[8]uril-based complexation and its self-assembly

1.
State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Sciences, Fudan University, Shanghai 200433, China

Corresponding author: Guo-Song Chen,
Received Date: 28 February 2013
Available Online: 26 March 2013

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 cucurbit[8]uril (CB[8]) 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.
- Macromolecular self-assembly,
- Inclusion complexation,
- Thermo responsive polymer,
- Cucurbit[8]uril
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1.
沈阳化工大学材料科学与工程学院沈阳 110142