| Texto completo | |
| Autor(es): |
Magri, Raquel
;
Gaglieri, Caroline
;
Alarcon, Rafael Turra
;
dos Santos, Gabriel Iago
;
Bannach, Gilbert
Número total de Autores: 5
|
| Tipo de documento: | Artigo Científico |
| Fonte: | JOURNAL OF POLYMERS AND THE ENVIRONMENT; v. N/A, p. 16-pg., 2023-09-28. |
| Resumo | |
The synthesis of new materials from vegetable oils has increased due to technological applications and low environmental impact. Oil obtained from the patau & aacute; fruit (Oenocarpus bataua) is rich in linoleic and oleic fatty acids that can be modified by their double bonds to obtain green monomers. Thus, patau & aacute; oil can be reacted with an intercrossing agent to obtain a thermosetting polymer. This work focused on developing biomass-derived materials with hardened mechanical properties based on epoxidized patau & aacute; oil and benzophenone dianhydride. The global approach used for the crosslinking process started with the choice of crosslinker and ammonium salts as catalysts. Furthermore, epoxide-dianhydride copolymerization was investigated at different molar ratios (of anhydride and catalyst) to adjust the parameters that led to better conversions and properties. The final material exhibited conversions > 97% using only 5% catalyst and 2 h of curing at 120 degrees C, with the degradation process starting at 240 degrees C and glass transition temperature (T-g) at -1.5 degrees C. The produced polymer is luminescent and has low water absorption, suggesting its application in electronic devices and insulation. (AU) | |
| Processo FAPESP: | 22/03489-0 - Síntese e caracterização de novos materiais biopoliméricos obtidos a partir de anidrido maleico e glicerol utilizando poliaminas e politióis como agentes intercruzantes |
| Beneficiário: | Gabriel Iago dos Santos |
| Modalidade de apoio: | Bolsas no Brasil - Iniciação Científica |
| Processo FAPESP: | 13/07793-6 - CEPIV - Centro de Ensino, Pesquisa e Inovação em Vidros |
| Beneficiário: | Edgar Dutra Zanotto |
| Modalidade de apoio: | Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs |
| Processo FAPESP: | 21/14879-0 - Novo método para síntese de polihidróxiuretanos a partir de triacilglicerol e utilizando catalisadores ou triacilmelamina, visando inibir reações paralelas |
| Beneficiário: | Rafael Turra Alarcon |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 21/02152-9 - Síntese verde, caracterização e aplicação de novos biopolímeros a partir de óleos vegetais / essenciais usando-se compostos de enxofre como agentes intercruzantes |
| Beneficiário: | Gilbert Bannach |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |