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 9-(2,3-epoxypropyl)carbazole with sorbitol and oxiranes like ethylene and propylene oxide. The structure of obtained oligoetherols was determined by...
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| Format: | Article |
| Language: | English |
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Sciendo
2016-03-01
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| Series: | Polish Journal of Chemical Technology |
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| Online Access: | https://doi.org/10.1515/pjct-2016-0018 |
| _version_ | 1818609819404206080 |
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| author | Lubczak Renata |
| author_facet | Lubczak Renata |
| author_sort | Lubczak Renata |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-12-16T15:04:36Z |
| format | Article |
| id | doaj.art-4bd54ebc7e6244b29fc4127f412406de |
| institution | Directory Open Access Journal |
| issn | 1899-4741 |
| language | English |
| last_indexed | 2024-12-16T15:04:36Z |
| publishDate | 2016-03-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Polish Journal of Chemical Technology |
| spelling | doaj.art-4bd54ebc7e6244b29fc4127f412406de2022-12-21T22:27:10ZengSciendoPolish Journal of Chemical Technology1899-47412016-03-0118112012610.1515/pjct-2016-0018pjct-2016-0018Multifunctional oligoetherols and polyurethane foams with carbazole ringLubczak Renata0Rzeszów University of Technology, Department of Organic Chemistry, al. Powstańców Warszawy 6, 35-959 Rzeszów, PolandA 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.https://doi.org/10.1515/pjct-2016-0018carbazolesorbitolhydroxyalkylationoligoetherolsthermal stability of foams |
| spellingShingle | Lubczak Renata Multifunctional oligoetherols and polyurethane foams with carbazole ring Polish Journal of Chemical Technology carbazole sorbitol hydroxyalkylation oligoetherols thermal stability of foams |
| title | Multifunctional oligoetherols and polyurethane foams with carbazole ring |
| title_full | Multifunctional oligoetherols and polyurethane foams with carbazole ring |
| title_fullStr | Multifunctional oligoetherols and polyurethane foams with carbazole ring |
| title_full_unstemmed | Multifunctional oligoetherols and polyurethane foams with carbazole ring |
| title_short | Multifunctional oligoetherols and polyurethane foams with carbazole ring |
| title_sort | multifunctional oligoetherols and polyurethane foams with carbazole ring |
| topic | carbazole sorbitol hydroxyalkylation oligoetherols thermal stability of foams |
| url | https://doi.org/10.1515/pjct-2016-0018 |
| work_keys_str_mv | AT lubczakrenata multifunctionaloligoetherolsandpolyurethanefoamswithcarbazolering |