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The Synthesis of a Novel Cellulose Physical Gel

Authors :
Jianxin Jiang
Hongyun Lan
Daozhan Huang
Jiufang Duan
Jun Yang
Liujun Liu
Xiaojian Zhang
Chunrui Han
Source :
Journal of Nanomaterials, Vol 2014 (2014)
Publication Year :
2014
Publisher :
Hindawi Limited, 2014.

Abstract

Cellulose possessingβ-cyclodextrin (β-CD) was used as a host molecule and cellulose possessing ferrocene (Fc) as a guest polymer. Infrared spectra, differential scanning calorimetry (DSC), ultraviolet spectroscopy (UV), and contact angle analysis were used to characterise the material structure and the inclusion behaviour. The results showed that theβ-CD-cellulose and the Fc-cellulose can form inclusion complexes. Moreover, ferrocene oxidation, and reduction of state can be adjusted by sodium hypochlorite (NaClO) as an oxidant and glutathione (GSH) as a reductant. In this study, a physical gel based onβ-CD-cellulose/Fc-cellulose was formed under mild conditions in which autonomous healing between cut surfaces occurred after 24 hours. The physical gel can be controlled in the sol-gel transition. The compressive strength of the Fc-cellulose/β-CD-cellulose gel increased with increased cellulose concentration. The host-guest interaction between the side chains of cellulose could strengthen the gel. The cellulose physical gel may eventually be used as a stimulus-responsive, healing material in biomedical applications.

Details

ISSN :
16874129 and 16874110
Volume :
2014
Database :
OpenAIRE
Journal :
Journal of Nanomaterials
Accession number :
edsair.doi.dedup.....ca409e1444ec65c6f316e0dddf52bd43