| Texto completo | |
| Autor(es): |
Fonseca, Larissa R.
;
Bergman, James A.
;
Kessler, Michael R.
;
Madbouly, Samy A.
;
Lima-Neto, Benedito S.
Número total de Autores: 5
|
| Tipo de documento: | Artigo Científico |
| Fonte: | MACROMOLECULAR SYMPOSIA; v. 368, n. 1, p. 10-pg., 2016-10-01. |
| Resumo | |
Self-metathesis of the terminal olefin in 10-undecen-1-ol was conducted in the presence of [RuCl2(PPh3)(2)(perhydroazepine)] complex and ethyl diazoacetate (EDA) to form a bioderived diol. The diol was utilized as soft segment and chain extender in polyurethane reactions with castor oil. Polymers with high M-w and M-n values and PDI's of 2 and 3 were obtained. The viscoelastic material parameters (G', G'' and eta*) were studied as a function of angular frequency at different temperatures and diol/castor oil compostions. Newtonian behavior was observed for these materials. T-g values were more negative when increasing the diol percentage because the material became more viscoelastic. At only 10 wt% of the diol, an adhesive characteristic was observed in the castor oil-based polyurethane. Modifying the castol oil-based polyurethane with 10wt% of the diol was able to modify the rigid polyurethane, providing an adhesive characteristic to castor oil-based polyurethane. (AU) | |
| Processo FAPESP: | 11/12571-7 - Desenvolvimento de complexos do tipo [RuCl2(PPh3)2(amina)] para aplicação em reações de polimerização via metátese de olefinas cíclicas |
| Beneficiário: | Larissa Ribeiro da Fonseca |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado Direto |
| Processo FAPESP: | 12/23948-7 - Correlação entre as propriedades dos polímeros e bipolímeros obtidos via ROMP com complexos do tipo [RuCl2(PPh3)2(amina)] |
| Beneficiário: | Larissa Ribeiro da Fonseca |
| Modalidade de apoio: | Bolsas no Exterior - Estágio de Pesquisa - Doutorado Direto |