Surface characterization of chitin by inverse gas chromatography

被引：15

作者：

Shi, Baoli ^{[1
]}

Zhao, Shu ^{[1
]}

Jia, Lina ^{[1
]}

Wang, Lili ^{[1
]}

机构：

[1] NW Forestry Univ, Coll Sci, Dept Chem, Harbin 150040, Heilongjiang, Peoples R China

来源：

CARBOHYDRATE POLYMERS | 2007年 / 67卷 / 03期

关键词：

chitin; inverse gas chromatography; acid-base properties; surface free energy;

D O I：

10.1016/j.carbpol.2006.06.012

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The surface properties of a chitin (degree of deacetylation was 33.6%) were quantification ally analyzed by inverse gas chromatography (IGC) in this work. Four n-alkanes (C-5, C-6, C-7, and C-8) were chosen as apolar probes to characterize the dispersive component of free energy. Trichloromethane (CHCl3), acetone, ether and tetrahydrofuran (THF) were chosen as polar probes to detect the Lewis acid-base parameters. It was found the dispersive component of free energy was 37.58, 42.12, 45.70, and 51.69 mJ/m(2) at 40, 50, 60, and 70 degrees C, respectively. The Lewis acidic number K-a was 0.0793, and the basic number K-b was 0.7936. The result means the chitin is a Lewis basic polymer. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：398 / 402

页数：5

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