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Aggregate formation and surface activity of partially deacetylated water-soluble chitin

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Water-soluble chitin (WSC), partially acetylated, was prepared by using N-acetylation in mild conditions. The aggregation behavior of WSC in aqueous solution was investigated. The results showed that the surface tension decreased with increasing WSC concentration in the high dilute solution, the critical aggregation concentration was about 0.010 g/ml. The degree of deacetylation had an obvious effect on the surface tension. Introduction of acetyl favored aggregation formation. The possible aggregation mechanism of WSC in water was attributed to the molecules' conformation transition, resulting in change of intra- and inter-molecular interactions such as hydrogen bonding and hydrophobic interaction.

Affiliations: 1: State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China; Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, P. R. China; 2: State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China; Engineering Research Center for Biomedical Materials of Ministry of Education, East China University of Science and Technology, Shanghai 200237, P. R. China

10.1163/156856708783623483
/content/journals/10.1163/156856708783623483
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/content/journals/10.1163/156856708783623483
2008-02-01
2016-12-07

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