Hydrodynamic properties and conformational characteristics of low-substituted carboxymethyl cellulose in solution

被引：0

作者：

Okatova, OV

Lavrenko, PN

Dautzenberg, H

机构：

[1] Russian Acad Sci, Inst Macromol Cpds, St Petersburg 199004, Russia

[2] Univ Potsdam, WIP Forschungsgrp Polyelektrolytkomplexstrukt, D-14513 Teltow, Germany

来源：

POLYMER SCIENCE SERIES A | 2000年 / 42卷 / 07期

关键词：

D O I：

暂无

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

High-speed sedimentation, diffusion, and viscometry were employed to study the polymer-homologous series of nonfractionated samples and the fractions of carboxymethyl cellulose with the average degree of substitution 0.6 in solutions in a 10-fold diluted aqueous cadoxene. Problems pertinent to complex formation and polyelectrolyte effects were: discussed. The extent of coiling and the draining of macromolecules were characterized within the framework of the wormlike-chain model using the Kuhn segment (A = 1.5 +/- 1 nm) and the chain hydrodynamic diameter d (0.7 +/- 0.2 nm). The relationship between these parameters and the degree of cellulose carboxymethylation was established.

引用

页码：736 / 742

页数：7

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