<abstract xmlns="http://www.w3.org/1999/xhtml"><p>A new method of preparation of multifunctional oligoetherols containing carbazole ring is presented. The oligoetherols were obtained in the reaction of 9-(2,3-epoxypropyl)carbazole with sorbitol and oxiranes like ethylene and propylene oxide. The structure of obtained oligoetherols was determined by IR, H-NMR and MALDI-ToF spectroscopies. Physical properties of the products render them good candidates for preparing polyurethane foams. The foams were obtained and their properties were examined. It has been found that the foams are rigid at room temperature and their apparent density was 50–70 kg/m<sup>3</sup>. The water uptake was low, maximum to 6.5 mass%. Obtained foams have high thermal resistance. Dynamic thermal analysis of these foams showed that 5% mass loss was initiated at 250–300°C, while temperature of 50% mass loss was 370–404°C. Concomitantly the increase of compression strength was observed.</p></abstract>

A new method of preparation of multifunctional oligoetherols containing carbazole ring is presented. The oligoetherols were obtained in the reaction of 9-(2,3-epoxypropyl)carbazole with sorbitol and oxiranes like ethylene and propylene oxide. The structure of obtained oligoetherols was determined by IR, H-NMR and MALDI-ToF spectroscopies. Physical properties of the products render them good candidates for preparing polyurethane foams. The foams were obtained and their properties were examined. It has been found that the foams are rigid at room temperature and their apparent density was 50–70 kg/m3. The water uptake was low, maximum to 6.5 mass%. Obtained foams have high thermal resistance. Dynamic thermal analysis of these foams showed that 5% mass loss was initiated at 250–300°C, while temperature of 50% mass loss was 370–404°C. Concomitantly the increase of compression strength was observed.

Multifunctional oligoetherols and polyurethane foams with carbazole ring

Rzeszów University of Technology, Department of Organic Chemistry, al. Powstańców Warszawy 6, 35-959 Rzeszów, Poland

Polish Journal of Chemical Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Multifunctional oligoetherols and polyurethane foams with carbazole ring"}

A new method of preparation of multifunctional oligoetherols containing carbazole ring is presented. The oligoetherols were obtained in the reaction of...

Multifunctional oligoetherols and polyurethane foams with carbazole ring

Pubblicato online: 04 apr 2016

Pagine: 120 - 126

DOI: https://doi.org/10.1515/pjct-2016-0018

Parole chiave
carbazole, sorbitol, hydroxyalkylation, oligoetherols, thermal stability of foams

© 2016 Renata Lubczak, published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Multifunctional oligoetherols and polyurethane foams with carbazole ring

Pubblicato online: 04 apr 2016

Pagine: 120 - 126

DOI: https://doi.org/10.1515/pjct-2016-0018

Parole chiavecarbazole, sorbitol, hydroxyalkylation, oligoetherols, thermal stability of foams

© 2016 Renata Lubczak, published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Parole chiave
carbazole, sorbitol, hydroxyalkylation, oligoetherols, thermal stability of foams