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A novel supramolecular graft copolymer(SGP) composed of viologen-containing copolymer(P(DMA-co-diEV)) as the main chain and Np ended PNIPAM(Np-PN1PAm) 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 Na_2S_2O_3,which breaks the current inclusion complex pair and induces aggregation.
A novel supramolecular graft copolymer (SGP) composed of viologen-containing copolymer (P (DMA-co-diEV)) as the main chain and Np ended PNIPAM (Np-PN1PAm) as the grafts is prepared , diEV: ethylviologen dimer, Np: naphthalene, PNIPAM: poly (N-isopropylacrylamide)). The grafting is based on the triple complex 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. Temperatures sensitive property of PNIPAm allows SGP to self-assemble into non-covalently connected micelle (NCCM) at high temperature. The micelles are sensitive to reducing agents, for example Na_2S_2O_3, which breaks the current inclusion complex pair and induces aggregation.