期刊
CARBOHYDRATE POLYMERS
卷 128, 期 -, 页码 11-23出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2015.04.009
关键词
Cyclodextrin polymer; Epoxy-functionalized PEG; Molecular dynamics; Encapsulation ability; Adsorption isotherm
资金
- Japan Society for Promotion of Science (JSPS) [C-25410134]
- Japan Science and Technology Agency (JST) [AS262Z01980M]
- Grants-in-Aid for Scientific Research [25410134] Funding Source: KAKEN
A series of water-insoluble cyclodextrin polymers (CDP) was prepared by crosslinking beta-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 of crosslinking. 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. (C) 2015 Elsevier Ltd. All rights reserved.
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