Preparation of novel side-chain pseudopolyrotaxanes consisting of cucurbituril[6] and polyamine salts

Abstract

Pseudorotaxane monomer (VBCB) containing cucurbitutil[6] (CB[6]) and N-1-(4-vinylbenzyl)-1,4-diaminobutane dihydrochloride (VBDADC) is obtained by self-assembly of cucurbituril[6] with VBDADC in water and then polymerized using potassium persulfate (KPS) as initiator to give novel water-soluble side-chain cucurbituril [6]-based pseudopolyrotaxane (PVBCB). The chemical structures of PVBCB, VBCB and VBDADC are confirmed by H-1 NMR, C-13 NMR spectra and elemental analysis. In VBCB, CB[6] is localized aliphatic group of the side chain and the molar ratio of CB [6] to VBDAC is 1:1.