羟丙基纤维素-水-乙醇体系的相变和结构

IF 1 4区化学 Q4 POLYMER SCIENCE

Polymer Science, Series A Pub Date : 2023-07-03 DOI:10.1134/S0965545X23700748

S. A. Vshivkov, E. V. Rusinova

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引用次数: 0

摘要

研究了羟丙基纤维素-混合溶剂水/乙醇体系在加热时的结构和相变。随着混合溶剂中乙醇含量的增加，羟丙基纤维素溶液在较高的温度下进行相分离。当乙醇含量高于50%时，加热到400℃К后，系统中没有相分离。用浊度谱法测定溶液中大分子缔合物的大小。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Phase Transitions and Structure of the Hydroxypropyl Cellulose–Water–Ethanol System

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Phase Transitions and Structure of the Hydroxypropyl Cellulose–Water–Ethanol System

The structure and phase transitions in the hydroxypropyl cellulose–mixed solvent water/ethanol system upon heating are studied. As the content of ethanol in the mixed solvent is increased, hydroxypropyl cellulose solutions undergo phase separation at higher temperatures. At the ethanol content above 50% there is no phase separation in the system upon heating to 400 К. The sizes of macromolecular associates in solutions are determined by the turbidity spectrum method.

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来源期刊

Polymer Science, Series A 化学-高分子科学

CiteScore

1.70

自引率

0.00%

发文量

审稿时长

3 months

期刊介绍： Polymer Science, Series A is a journal published in collaboration with the Russian Academy of Sciences. Series A includes experimental and theoretical papers and reviews devoted to physicochemical studies of the structure and properties of polymers (6 issues a year). All journal series present original papers and reviews covering all fundamental aspects of macromolecular science. Contributions should be of marked novelty and interest for a broad readership. Articles may be written in English or Russian regardless of country and nationality of authors. All manuscripts are peer reviewed. Online submission via Internet to the Series A, B, and C is available at http://polymsci.ru.