Conductometric and Potentiometric Titration of Carboxyl Groups in Polymer Microspheres

被引：2
|
作者：
Shestakova, D. O. [1 ,2 ]
San'kova, N. N. [2 ]
Parkhomchuk, E. V. [1 ,2 ]
机构：
[1] Novosibirsk State Univ, Novosibirsk 630090, Russia
[2] Russian Acad Sci, Siberian Branch, Boreskov Inst Catalysis, Novosibirsk 630090, Russia
来源：
POLYMER SCIENCE SERIES A | 2023年 / 65卷 / 05期
关键词：
DISPERSION POLYMERIZATION; SEEDED POLYMERIZATION; SURFACE; LATEX; QUANTIFICATION; PARTICLES;
D O I：
10.1134/S0965545X23701134
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
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 x 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.
引用
收藏
页码：580 / 592
页数：13
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