Materiały powłokowe otrzymywane z kationomerów poliuretanowych modyfikowanych funkcjonalizowanym silseskwioksanem. Cz. I. Budowa chemiczna kationomerów

B. Król; P. Król

Published : 2010-06-30

Vol. 55 No. 6 (2010)

Coating materials obtained from polyurethane cationomers modified with functionalized silsequioxanes

B. Król P. Król

Abstract

The three-stage synthesis of waterborne polyurethane cationomers on the basis of diphenyl methane-4,4'-diisocyanate (MDI), oligo(oxypropylene glycol) and N-methyldiethanolamine [(N-MDEA) used as an additional hydroxylating and chain-elongating reagent] has been presented. Stable dispersions were obtained after the quaternisation, in a further fourth stage, of the introduced N-alkyl groups with formic acid (HCOOH) and then dispergation in water (Table 5). The cationomers obtained in the third stage of the synthesis of urethane-isocyanate prepolymers were modified chemically with silsequioxanes functionalized with -OH groups (Table 6). The chemical structure of the cationomers and their molecular weights were determined using IR, NMR and GPC chromatography (Figs. 6-13, Tables 7-11). The same methods were also applied in determining the properties of the obtained PHIPOSS [equation (VI), Figs. 1-5, Tables 1-4].

Keywords

nanokompozyty ; kationomer poliuretanowy ; funkcjonalizowany silseskwioksan ; budowa chemiczna ; ciężary cząsteczkowe nanocomposites ; polyurethane cationomer ; functionalized silsequioxane ; chemical structure ; molecular weight

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Zasady cytowania

Król, B., & Król, P. (2010). Coating materials obtained from polyurethane cationomers modified with functionalized silsequioxanes. Polimery, 55(6), 440–451. Retrieved from https://ichp.vot.pl/index.php/p/article/view/1026

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