A series of water-insoluble cyclodextrin polymers (CDP) was prepared by crosslinking -cyclodextrin
(CD) with polyethylene glycol diglycidyl ether (PEGDE). Similarly, a reference CDP was prepared using
ethylene glycol diglycidyl ether (EGDE). Increasing the feed ratio of PEGDE to CD in the reaction mixture
led to high degrees ofcrosslinking. Relaxation measurements revealed structural homogeneity among the
CDPs, which exhibited mobilities that strongly depended on the chain lengths of the crosslinking agents.
In addition, all the CDPs displayed high encapsulation abilities toward bisphenol A (BPA) in aqueous
media. In particular, the CDP sample with a low degree of crosslinking by PEGDE showed the highest
encapsulation ability toward BPA. In contrast, the CDP crosslinked by EGDE exhibited low encapsulation
ability because its highly dense structure, which results from the short chain lengths of the crosslinking
agents, hinders the penetration of BPA molecules
A series of water-insoluble cyclodextrin polymers (CDP) was prepared by crosslinking -cyclodextrin(CD) with polyethylene glycol diglycidyl ether (PEGDE). Similarly, a reference CDP was prepared usingethylene glycol diglycidyl ether (EGDE). Increasing the feed ratio of PEGDE to CD in the reaction mixtureled to high degrees ofcrosslinking. Relaxation measurements revealed structural homogeneity among theCDPs, which exhibited mobilities that strongly depended on the chain lengths of the crosslinking agents.In addition, all the CDPs displayed high encapsulation abilities toward bisphenol A (BPA) in aqueousmedia. In particular, the CDP sample with a low degree of crosslinking by PEGDE showed the highestencapsulation ability toward BPA. In contrast, the CDP crosslinked by EGDE exhibited low encapsulationability because its highly dense structure, which results from the short chain lengths of the crosslinkingagents, hinders the penetration of BPA molecules
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