期刊
JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY
卷 50, 期 12, 页码 1225-1229出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/10601325.2013.843403
关键词
hydrogels; polypyrroles; chitosan; composites; static synthesis
资金
- New Century Excellent Talents in University of Ministry of Education of China [NCET-10-0157]
- Outstanding Youth Scientific Foundation of Hubei Province [2012FFA021]
- PolyU's Project A/C [ZP3G]
- Hong Kong Innovation Technology Funding [ITS/264/11]
Conducting polymer hydrogels consisting of polypyrrole (PPy) and chitosan (CS) are prepared by static polymerization of pyrrole using methyl orange (MO) as the dopant and Fe-2(SO4)(3) as the oxidant in the CS aqueous solution. PPy/CS composite hydrogels not only have good electrical conductivities, but also exhibit excellent swelling/deswelling behaviors due to the participation of one-dimensional conducting PPy blocks in the hydrogel network. The effects of the amount of the oxidant and ionic strength on the physical properties of PPy/CS composite hydrogels are studied in detail. The results show that PPy/CS composite hydrogels have improved water absorbencies in saline solutions compared with the conventional polyelectrolyte hydrogel.
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