| Grant number: | 11/06019-0 |
| Support Opportunities: | Scholarships in Brazil - Doctorate |
| Start date: | August 01, 2011 |
| End date: | August 14, 2015 |
| Field of knowledge: | Physical Sciences and Mathematics - Chemistry - Inorganic Chemistry |
| Principal Investigator: | Ubirajara Pereira Rodrigues Filho |
| Grantee: | Kelen Menezes Flores Rossi de Aguiar |
| Host Institution: | Instituto de Química de São Carlos (IQSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil |
| Associated scholarship(s): | 13/05279-3 - Poly(dimethylsiloxane) based segmented urethanes biomimetic adhesives Based on CO2 fixation, BE.EP.DR |
Abstract Process and product aggressive toward the environment are under seriously revision. Alternative solutions those are more ecologically friendly are envisaged. Bis-cyclocarbonates is a class of attractive compounds in this direction, whereas, they can be used as intermediates on the synthesis of "green polyurethanes", pore-free and more resistant to hydrolysis. Cyclocarbonates can be synthesized from the reaction of CO2 and bis-epoxydes. Linear or crosslinked polyurethanes can be prepared from the bis-cyclocarbamates and diamines. Inside this context, this project aims synthtize poly(urethanes) free of isocyanide, through CO2 fixation and copolymers with poly(dimetylsiloxane) and pol(uretanes) of low surface energy, high hydrophobicity and chemical and thermal stability. The films from these materials doped with ormosis bearing phophotungstic acid an TiO2 nanoparticles are going to be evaluated toward its application as proton conductor membranes for fuel cells and veterinary devices. (AU) | |
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