Film properties from crosslinking of cellulosic derivatives with a polyfunctional carboxylic acid

被引：124

作者：

Coma, V ^{[1
]}

Sebti, I ^{[1
]}

Pardon, P ^{[1
]}

Pichavant, FH ^{[1
]}

Deschamps, A ^{[1
]}

机构：

[1] Univ Bordeaux 1, Inst Pin, Lab Chim Substances Vegetales, F-33405 Talence, France

来源：

CARBOHYDRATE POLYMERS | 2003年 / 51卷 / 03期

关键词：

cellulosic based packaging; crosslinking; moisture barrier properties;

D O I：

10.1016/S0144-8617(02)00191-1

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

In order to decrease water sensitivity of packaging materials based on water-soluble cellulose derivatives, and especially to avoid partial solubilisation of films into food products; crosslinking of hydroxy propyl methyl cellulose (HPMC) with citric acid was carried out using different contents. of polycarboxylic acid and catalyst. To determine reticulation rate or ester bond rate in crosslinked cellulosic derivatives, FTIR in transmittance, based on of the ester band (1735 cm(-1)) was compared to-acid-base titration. Infra-red spectroscopy had advantages over time consuming titration. Crosslinking of the hydrophilic polymers induced a strong influence on water solubility and an improvement in the water vapor barrier of about 34%. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：265 / 271

页数：7

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