Poliuretanos obtenidos a partir de aceite de higuerilla modificado y poli-isocianatos de lisina: síntesis, propiedades mecánicas y térmicas y degradación in vitro
Biodegradable polyurethanes (PUR) were prepared from polyols derived from castor oil by transesterification of pentaerythritol-modified castor oil and lysine polyisocyanates (LDI and LTI). The polyurethanes obtained were characterized by Fourier transform infrared spectroscopy, thermogravimetric ana...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Química
2014-01-01
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| Series: | Química Nova |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422014000900003&lng=en&tlng=en |
| _version_ | 1818991869991845888 |
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| author | Manuel F. Valero Luis E. Díaz |
| author_facet | Manuel F. Valero Luis E. Díaz |
| author_sort | Manuel F. Valero |
| collection | DOAJ |
| description | Biodegradable polyurethanes (PUR) were prepared from polyols derived from castor oil by transesterification of pentaerythritol-modified castor oil and lysine polyisocyanates (LDI and LTI). The polyurethanes obtained were characterized by Fourier transform infrared spectroscopy, thermogravimetric analysis (TGA), and dynamic mechanical thermal analysis (DMTA). The mechanical behavior of the polyurethanes was measured by Shore A hardness and tensile testing (stress-strain curves). The biodegradable nature of the material was determined by contact angle, water absorption tests, and in vitro degradation in PBS solution. This study aims to examine the effect of the structure and functionality of diisocyanate on the mechanical properties and in vitro degradation of the material. The results were compared with homologous materials obtained from isophorone diisocyanate (IPDI) used in previous works. The objective was to evaluate candidate materials that can be potentially used in tissue engineering. |
| first_indexed | 2024-12-20T20:17:08Z |
| format | Article |
| id | doaj.art-b7118eaf15ba42ccb684bb7aec29c49c |
| institution | Directory Open Access Journal |
| issn | 1678-7064 |
| language | English |
| last_indexed | 2024-12-20T20:17:08Z |
| publishDate | 2014-01-01 |
| publisher | Sociedade Brasileira de Química |
| record_format | Article |
| series | Química Nova |
| spelling | doaj.art-b7118eaf15ba42ccb684bb7aec29c49c2022-12-21T19:27:41ZengSociedade Brasileira de QuímicaQuímica Nova1678-70642014-01-013791441144510.5935/0100-4042.20140228S0100-40422014000900003Poliuretanos obtenidos a partir de aceite de higuerilla modificado y poli-isocianatos de lisina: síntesis, propiedades mecánicas y térmicas y degradación in vitroManuel F. Valero0Luis E. Díaz1Universidad de La SabanaUniversidad de La SabanaBiodegradable polyurethanes (PUR) were prepared from polyols derived from castor oil by transesterification of pentaerythritol-modified castor oil and lysine polyisocyanates (LDI and LTI). The polyurethanes obtained were characterized by Fourier transform infrared spectroscopy, thermogravimetric analysis (TGA), and dynamic mechanical thermal analysis (DMTA). The mechanical behavior of the polyurethanes was measured by Shore A hardness and tensile testing (stress-strain curves). The biodegradable nature of the material was determined by contact angle, water absorption tests, and in vitro degradation in PBS solution. This study aims to examine the effect of the structure and functionality of diisocyanate on the mechanical properties and in vitro degradation of the material. The results were compared with homologous materials obtained from isophorone diisocyanate (IPDI) used in previous works. The objective was to evaluate candidate materials that can be potentially used in tissue engineering.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422014000900003&lng=en&tlng=enlysine polyisocyanatesin vitro degradationpolyurethanes |
| spellingShingle | Manuel F. Valero Luis E. Díaz Poliuretanos obtenidos a partir de aceite de higuerilla modificado y poli-isocianatos de lisina: síntesis, propiedades mecánicas y térmicas y degradación in vitro Química Nova lysine polyisocyanates in vitro degradation polyurethanes |
| title | Poliuretanos obtenidos a partir de aceite de higuerilla modificado y poli-isocianatos de lisina: síntesis, propiedades mecánicas y térmicas y degradación in vitro |
| title_full | Poliuretanos obtenidos a partir de aceite de higuerilla modificado y poli-isocianatos de lisina: síntesis, propiedades mecánicas y térmicas y degradación in vitro |
| title_fullStr | Poliuretanos obtenidos a partir de aceite de higuerilla modificado y poli-isocianatos de lisina: síntesis, propiedades mecánicas y térmicas y degradación in vitro |
| title_full_unstemmed | Poliuretanos obtenidos a partir de aceite de higuerilla modificado y poli-isocianatos de lisina: síntesis, propiedades mecánicas y térmicas y degradación in vitro |
| title_short | Poliuretanos obtenidos a partir de aceite de higuerilla modificado y poli-isocianatos de lisina: síntesis, propiedades mecánicas y térmicas y degradación in vitro |
| title_sort | poliuretanos obtenidos a partir de aceite de higuerilla modificado y poli isocianatos de lisina sintesis propiedades mecanicas y termicas y degradacion in vitro |
| topic | lysine polyisocyanates in vitro degradation polyurethanes |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422014000900003&lng=en&tlng=en |
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