Preparation and properties of chitosan/poly(vinyl alcohol) blend foams for copper adsorption
- Authors
- Wang, Xiao; Chung, Yong Sik; Lyoo, Won Seok; Min, Byung Gil
- Issue Date
- Nov-2006
- Publisher
- JOHN WILEY & SONS LTD
- Keywords
- chitosan; poly(vinyl alcohol); heavy metal; foam; adsorption
- Citation
- POLYMER INTERNATIONAL, v.55, no.11, pp.1230 - 1235
- Journal Title
- POLYMER INTERNATIONAL
- Volume
- 55
- Number
- 11
- Start Page
- 1230
- End Page
- 1235
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/19261
- DOI
- 10.1002/pi.2068
- ISSN
- 0959-8103
- Abstract
- A new form of polymer blend, macroporous chitosan/poly(vinyl alcohol) (PVA) foams made by a starch expansion process, exhibits the functionalities of chitosan while avoiding its poor mechanical properties and chemical instabilities. The appropriate conditions for foaming are discussed using both insoluble and water-soluble chitosan. The chitosan/PVA foams demonstrated interconnected and open-cell structures with large pore size from tens to hundreds of micrometers and high porosities from 73.6 to 84.3%. Glutaraldehyde was employed to improve the retention of chitosan and copper adsorption of the chitosan/PVA foams. While it increased the retention of chitosan and the adsorption capacities, glutaraldehyde decreased the pore size and porosity. The macroporous structure of the chitosan/PVA foams indicates extensive application prospects in terms of the considerable adsorption of heavy metal ions. (C) 2006 Society of Chemical Industry.
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Collections - School of Science and Engineering of chemical Materials > 1. Journal Articles
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