Preparation and Properties of a Novel Multiple Responsive Supramolecular Hydrogel Based on Host-Guest Interaction

Chem. J. Chinese Universities

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Preparation and Properties of a Novel Multiple Responsive Supramolecular Hydrogel Based on Host-Guest Interaction

YAN Jun-Lin, LIU Jing, CHEN Xi, FANG Yu*

Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Materials Science, Shaanxi Normal University, Xi′an 710062, China

Received:2007-07-19 Revised:1900-01-01 Online:2008-01-10 Published:2008-01-10
Contact: FANG Yu

Abstract

Abstract: A novel supramolecular hydrogel was prepared by utilizing the host-guest interaction between 6-deoxy-6-amino-β-cyclodextrin(β-CDNH2) and N,N′-bis(ferrocenyl-methylene)diaminobutane(FBI) in an aqueous phase. The phase state of the hydrogel is sensitive to the changes of temperature and pH. Furthermore, introduction of a chemical oxidant, (NH4)2Ce(NO3)6, resulted in dissolution of the gel, and correspondingly the color of the system changed from light yellow to dark green. SEM measurements reveal that the network structure of the hydrogel is characterized by belt-like fibers. It is the fibers that intertwine into 3-dimensional networks. 1H NMR, FTIR, CV, and XRD studies demonstrate that the host-guest interaction between FBI and β-CDNH2, and the intermolecular hydrogen bonding between β-CDNH2 are the main driving forces for the formation of the gel.

Key words: Supramolecular structure, β-Cyclodextrin, Ferrocene, Gel

CLC Number:

O648.17

TrendMD:

YAN Jun-Lin, LIU Jing, CHEN Xi, FANG Yu*. Preparation and Properties of a Novel Multiple Responsive Supramolecular Hydrogel Based on Host-Guest Interaction[J]. Chem. J. Chinese Universities, doi: .

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Preparation and Properties of a Novel Multiple Responsive Supramolecular Hydrogel Based on Host-Guest Interaction

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