HYDRATION OF ETHYL HYDROXYETHYL CELLULOSE

被引：17

作者：

CARLSSON, A ^{[1
]}

LINDMAN, B ^{[1
]}

NILSSON, PG ^{[1
]}

KARLSSON, G ^{[1
]}

机构：

[1] BEROL KEMI AB,DIV COLLOID CHEM,S-44401 STENUNGSUND,SWEDEN

来源：

POLYMER | 1986年 / 27卷 / 03期

关键词：

CALORIMETRY - Applications - MAGNETIC MEASUREMENTS - Resonance;

D O I：

10.1016/0032-3861(86)90161-8

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The hydration of ethyl hydroxyethyl cellulose (EHEC) has been investigated, utilizing three different methods: proton nuclear magnetic resonance, differential scanning calorimetry and water self-diffusion measurements. The results differ somewhat, depending on the method used, but lie around 2 g of bound water per g EHEC, which corresponds to about 30 water molecules per monomer unit. Mechanisms behind the observed hydration numbers are discussed and it is suggested that there is an important influence of water interaction with the polymer backbone. This is favored by an increasing repulsion between the polymers when ethylene oxide groups are introduced.

引用

页码：431 / 436

页数：6

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