Jakościowa identyfikacja pierścieni izocyjanurowych w elastomerach uretanowo-izocyjanurowych i w ich hydrolizatach

R. Samborska-Skowron; A. Balas

Published : 2022-09-17

Vol. 48 No. 5 (2003)

Qualitative identification of isocyanurate rings in urethane-isocyanurate elastomers and their hydrolyzates

R. Samborska-Skowron A. Balas

Abstract

It has been stated that reliable qualitative identification of isocyanurate rings directly in urethane-isocyanurate elastomers (EUI) can not be realized using ATR method. Such identification becomes possible only on the basis of the analysis of EUI hydrolysis in acid medium products. It was done using following methods: FT-IR (Fig. 2), C-13 NMR (Fig. 3), HPLC and UV (Figs. 4 and 5). There was found that investigated EUI samples, obtained by two-step method (via prepolymer) using commercial cyclopolymerization catalyst "Polycat 41", contain the products of free NCO groups cyclization.

Keywords

elastomery uretanowo-izocyjanurowe ; hydroliza kwaśna ; pierścienie izocyjanurowe ; analiza jakościowa ; metody spektroskopowe ; chromatografia urethane-isocyanurate elastomers ; acid hydrolysis ; isocyanurate rings ; qualitative analysis ; spectroscopic methods

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Samborska-Skowron, R., & Balas, A. (2022). Qualitative identification of isocyanurate rings in urethane-isocyanurate elastomers and their hydrolyzates. Polimery, 48(5), 371–374. Retrieved from https://ichp.vot.pl/index.php/p/article/view/1874

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R. Samborska-Skowron roksanas@urethan.chem.pg.gda.pl

Affiliation
Politechnika Gdańska, Wydział Chemiczny, Katedra Technologii Polimerów, ul. Narutowicza 11/12, 80-952 Gdańsk, Poland

A. Balas