聚合物微球中羧基的电导滴定法和电位滴定法

IF 1 4区化学 Q4 POLYMER SCIENCE

Polymer Science, Series A Pub Date : 2023-10-29 DOI:10.1134/S0965545X23701134

D. O. Shestakova, N. N. San’kova, E. V. Parkhomchuk

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引用次数: 0

摘要

有人提出了一种实验室程序，用于测定乳胶浓度为几百分之一重量百分比（COOH 基团浓度低于 4 × 10-4 mol/L）时聚苯乙烯微球表面的羧基浓度。该程序基于电导滴定法和电位滴定法。研究了体系中聚合物颗粒浓度、溶液离子强度、滴定持续时间和体系惰性对羧基浓度值和测定精度的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Conductometric and Potentiometric Titration of Carboxyl Groups in Polymer Microspheres

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Conductometric and Potentiometric Titration of Carboxyl Groups in Polymer Microspheres

A laboratory procedure has been suggested for determining the concentration of carboxyl groups at the surface of polystyrene microspheres at the latex concentration of a few hundredths of weight percentage (the COOH groups concentration below 4 × 10⁻⁴ mol/L). The procedure is based on conductometric and potentiometric titration. The influence of polymer particles concentration in the system, ionic strength of the solution, titration duration, and the system inertness on the obtained values of the carboxyl groups concentration and the determination accuracy have been investigated.

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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.