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CO2 uptake and synthesis of POLYURETANES-POLYSILICONE co-polymers as additives incorporated in ormosils: use on bioactive and ion conducting films

Grant number: 11/06019-0
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): August 01, 2011
Effective date (End): August 14, 2015
Field of knowledge:Physical Sciences and Mathematics - Chemistry
Principal Investigator:Ubirajara Pereira Rodrigues Filho
Grantee:Kelen Menezes Flores Rossi de Aguiar
Home 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


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.

Scientific publications (5)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
ROSSI DE AGUIAR, KELEN M. F.; NASCIMENTO, V, MATHEUS; FACCIONI, JULIANO L.; NOESKE, PAUL-LUDWIG M.; GAETJEN, LINDA; RISCHKA, KLAUS; RODRIGUES-FILHO, UBIRAJARA P. Urethanes PDMS-based: Functional hybrid coatings for metallic dental implants. Applied Surface Science, v. 484, p. 1128-1140, AUG 1 2019. Web of Science Citations: 1.
DE AGUIARA, KELEN R.; RISCHKA, KLAUS; GAETJEN, LINDA; NOESKE, PAUL-LUDWIG MICHAEL; CAVALCANTI, WELCHY LEITE; RODRIGUES-FILHO, UBIRAJARA P. Biomimetic PDMS-hydroxyurethane terminated with catecholic moieties for chemical grafting on transition metal oxide-based surfaces. Applied Surface Science, v. 427, n. B, p. 166-175, JAN 1 2018. Web of Science Citations: 3.
DE AGUIAR, K. M. F. ROSSI; FERREIRA-NETO, E. P.; BLUNK, S.; SCHNEIDER, J. F.; PICON, C. A.; LEPIENSKI, C. M.; RISCHKA, K.; RODRIGUES-FILHO, U. P. Hybrid urethanesil coatings for inorganic surfaces produced by isocyanate-free and sol-gel routes: synthesis and characterization. RSC ADVANCES, v. 6, n. 23, p. 19160-19172, 2016. Web of Science Citations: 6.
ROSSI DE AGUIAR, K. M. F.; SPECHT, U.; MAASS, J. F.; SALZ, D.; PICON, C. A.; NOESKE, P. -L. M.; RISCHKA, K.; RODRIGUES-FILHO, U. P. Surface modification by physical treatments on biomedical grade metals to improve adhesion for bonding hybrid non-isocyanate urethanes. RSC ADVANCES, v. 6, n. 53, p. 47203-47211, 2016. Web of Science Citations: 8.
AGUIAR, K. R.; SANTOS, V. G.; EBERLIN, M. N.; RISCHKA, K.; NOESKE, M.; TREMILIOSI-FILHO, G.; RODRIGUES-FILHO, U. P. Efficient green synthesis of bis(cyclic carbonate) poly(dimethylsiloxane) derivative using CO2 addition: a novel precursor for synthesis of urethanes. RSC ADVANCES, v. 4, n. 46, p. 24334-24343, 2014. Web of Science Citations: 20.
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
AGUIAR, Kelen Menezes Flores Rossi de. Synthesis of hydroxyurethanes-poly(dimethylsiloxane) with different chain terminations via carbon dioxide fixation: Characterizations and potential applications.. 2015. Doctoral Thesis - Universidade de São Paulo (USP). Instituto de Química de São Carlos São Carlos.

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