A simple Karl Fischer titration procedure for determination of total hydroxyl content in silanol-terminated polysiloxanes

被引：4

作者：

Kosonen, JP ^{[1
]}

Ruohonen, JK ^{[1
]}

机构：

[1] Leiras Oy, R&D Polymer React Engn, FIN-20101 Turku, Finland

来源：

INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION | 1998年 / 4卷 / 04期

关键词：

silanol determination; Karl Fischer titration; polysiloxanes; poly(dimethylsiloxane);

D O I：

10.1080/10236669808009717

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

This paper describes a simple procedure for the determination of total hydroxyl content in simple silanols and silanol-terminated polysiloxanes. The proposed procedure is based on a conventional pyridine-free Karl Fischer titration method. A temperature of 50 degrees C is used to accelerate and complete the reaction between the KF reagent and silanol (SiOH) groups. Validation shows that the procedure is precise and accurate. Typical relative standard deviation of the procedure is 1-2%. When compared to a routine FTIR method, the Karl Fischer titration procedure produced similar quantitative results, but was superior in terms of simplicity in equipment and standardization.

引用

页码：283 / 293

页数：11

共 23 条

[21] Vaporisation coulometric Karl Fischer titration: A perfect tool for water content determination of difficult matrix reference materials
Kestens, V.
Conneely, P.
Bernreuther, A.
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[22] DETERMINATION OF THE WATER-CONTENT IN MUSCOVITES CONTAINING LARGE AMOUNTS OF FLUORINE BY FISCHER,KARL TITRATION AFTER FUSION WITH SILICON DIOXIDE
YAMAYA, K
ANALYTICA CHIMICA ACTA, 1979, 110 (02) : 233 - 243
[23] Uncertainty evaluation and validation of the test specimen size reduction in the determination of water content in crude oils by coulometric Karl Fischer titration
de Almeida, F. C.
Biazon, C. L.
de Oliveira, E. C.
PETROLEUM SCIENCE AND TECHNOLOGY, 2017, 35 (11) : 1135 - 1140

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