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The synthesis and structure of graft polyrotaxane, a novel class of graft copolymer possessing mobile graft chains, is described. Poly(tetrahydrofuran) was bound to the axle components of pseudo[2]rotaxane as the graft chain by a grafting-onto method to afford the corresponding graft polyrotaxane (see picture). N-Acetylation of the ammonium moieties lead to an increase in the dynamic radius of the graft polyrotaxane.
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Kohsaka et al. (2011) studied this question.
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