Preparation and characterization of cationic corn starch with a high degree of substitution in dioxane-THF-water media

被引：93

作者：

Wang, Pi-xin ^{[1
]}

Wu, Xiu-li ^{[2
]}

Dong-hua, Xue ^{[2
]}

Kun, Xu ^{[1
]}

Ying, Tan ^{[1
]}

Xi-bing, Du ^{[2
]}

Wen-bo, Li ^{[1
]}

机构：

[1] Changchun Inst Appl Chem, Polymer Engn Lab, Changchun 130022, Peoples R China

[2] Chalmers Univ Technol, Sch Biol Engn, Changchun 130022, Peoples R China

来源：

CARBOHYDRATE RESEARCH | 2009年 / 344卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Cationic corn starch; High DS; Reaction medium; Structure characterization; WHEAT-STARCH; DERIVATIVES; ACID;

D O I：

10.1016/j.carres.2009.02.023

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Cationic corn starch derivatives with a high degree of substitution are prepared in alkaline solution or in mixed media of organic solvent and water with different levels of the cationic reagent, 2,3-epoxypropyltrimethylammonium chloride. The starch cationization yield is investigated, and the results indicate that the degree of substitution (DS) of the samples depends on the reaction conditions and reaction media. The maximum DS values are up to 1.37 in 1,4-dioxane alkali ne-aqueous solution. Meanwhile, the structures of the cationic starch derivatives are characterized by elemental analyses, FTIR spectroscopy, X-ray diffraction, and C-13 NMR spectroscopy, as well as by SEM techniques. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：851 / 855

页数：5

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