Study of Synthesis Process of L-ascorbic acid cellulose ester

被引：1

作者：

Liu Ning ^{[1
]}

Luan Youshun ^{[1
]}

Su Shuang ^{[1
]}

Fang Guizhen ^{[2
]}

机构：

[1] Harbin Univ Commerce, Key Lab Food Sci & Engn, Harbin 150076, Heilongjiang, Peoples R China

[2] Northeast Forestry Univ, Key Lab Biomass Mat Sci & Technol, Minist Educ, Harbin 150040, Heilongjiang, Peoples R China

来源：

MACHINERY, MATERIALS SCIENCE AND ENGINEERING APPLICATIONS | 2012年 / 510卷

关键词：

L- ascorbic acid; L-ascorbic acid cellulose ester; Synthesis;

D O I：

10.4028/www.scientific.net/AMR.510.555

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In this article, L-ascorbic acid cellulose ester, a polymer with antioxidant properties, was synthesized using L- ascorbic acid and sodium carboxymethyl cellulose as feedstock. The whole reaction was divided into two parts: the preparation of carboxymethyl cellulose carbonyl chlorides and the synthesis of L-ascorbic acid cellulose ester. The optimal conditions of acyl chloride preparation: ratio (m/v) of CMCH to SOCl2 was 1:3, proportion(m/v) of CMCH to DMF was 1:20, reaction temperature was 110-120 degrees C, reaction time was 2h. The optimal conditions of L-ascorbic acid cellulose ester synthesis: ratio(m/v) of L-ascorbic acid to solvent was 1:3.5, proportion(Mol/Mol) of Carboxymethyl cellulose carbonyl chlorides to L-ascorbic acid was 1:1.3, reaction temperature was 20 C, reaction time was 22h. In this reaction conditions, the synthetic product not only saved the antioxidant activity of the groups, and added the safe and non-toxic ability of dietary fiber.

引用

页码：555 / +

页数：2

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