Paper Title:
Flexibility Modification of Konjac Glucomannan Film by Deacetylation
  Abstract

Konjac glucomannan (KGM) were modified by deacetylation with sodium hydroxide, calcium hydroxide, sodium carbonate, sodium phosphate, respectively and mechanical properties of modified KGM films were investigated. The modification mechanism was explored by FTIR. Results show that deacetylation of KGM play an important role on the flexibility of the modified membranes, and the flexibilities vary with different modifiers. The flexibility of the films modified by sodium hydroxide is significantly higher than that of the others. The modified films with good flexibility were prepared by simple steps as follows: NaOH modifiers and KGM (1%) were added to water, stirred until the pH arrived at 9. And then the KGM swelled at the temperature of 50°C for 2 hours, the modified KGM sol was cast onto glass plates, the modified membranes were formed after dried at 50°C.

  Info
Periodical
Materials Science Forum (Volumes 610-613)
Main Theme
Edited by
Zhongwei Gu, Yafang Han, Fusheng Pan, Xitao Wang, Duan Weng and Shaoxiong Zhou
Pages
1248-1251
DOI
10.4028/www.scientific.net/MSF.610-613.1248
Citation
Y. Chen, X. Y. Lin, X. G. Luo, Y. T. Kang, "Flexibility Modification of Konjac Glucomannan Film by Deacetylation", Materials Science Forum, Vols. 610-613, pp. 1248-1251, 2009
Online since
January 2009
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$32.00
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