Buscar
Mostrando ítems 31-40 de 54
Characterization of UHMWPE/POSS composite prepared by Ball Milling
(IEEEOttawa, Ontario, 2013-06-02)
The incorporation of polyhedral oligomeric silsesquioxane (POSS) into polymeric materials may result in great improvement of polymer properties including electrical dielectric properties. However, the success of achieving ...
Desenvolvimento de materiais fluorescentes baseados em silsesquioxanos
(Universidade Federal de São Paulo, 2022-12-15)
Os materiais híbridos têm como objetivo a síntese de um material final que contenha uma ou mais características desejadas de seus precursores. Uma classe de materiais que tem ganhado mais destaque ao longo dos últimos anos ...
Effects of Synthesis Conditions on the Nanostructure of Hybrid Sols Produced by the Hydrolytic Condensation of (3-Methacryloxypropyl)trimethoxysilane
(Amer Chemical Soc, 2009-08-20)
Polysilsesquioxanes containing methacrylate pendant groups were prepared by the sol-gel process through hydrolysis and condensation of (3-methacryloxypropyl)trimethoxysilane (MPTS) dissolved in a methanol/methyl methacrylate ...
Effects of Synthesis Conditions on the Nanostructure of Hybrid Sols Produced by the Hydrolytic Condensation of (3-Methacryloxypropyl)trimethoxysilane
(Amer Chemical Soc, 2009-08-20)
Polysilsesquioxanes containing methacrylate pendant groups were prepared by the sol-gel process through hydrolysis and condensation of (3-methacryloxypropyl)trimethoxysilane (MPTS) dissolved in a methanol/methyl methacrylate ...
Epoxidation of olefins using a novel synthesized tungsten dendritic catalyst
(2017-11-01)
In this work, we carry out the preparation and characterization of new dendritic catalyst from an oligomer polyhedral silsesquioxane core (POSS-DG2.0). This material was used in the immobilization of the [W(CO)3Br2(NCMe)2] ...
Propriedades de materiais nanoestruturados do sistema epoxídico DGEBA/TETA modificado com um éster de silsesquioxano
(Universidade Estadual Paulista (Unesp), 2006-08-10)
Resinas epoxídicas são uma das mais importantes classes de polímeros termorrígidos usados para aplicações estruturais e como adesivos. Entretanto, os problemas em aplicações de resinas epoxídicas na engenharia incluem a ...
Propriedades de materiais nanoestruturados do sistema epoxídico DGEBA/TETA modificado com um éster de silsesquioxano
(Universidade Estadual Paulista (Unesp), 2006-08-10)
Resinas epoxídicas são uma das mais importantes classes de polímeros termorrígidos usados para aplicações estruturais e como adesivos. Entretanto, os problemas em aplicações de resinas epoxídicas na engenharia incluem a ...
Effects of Synthesis Conditions on the Nanostructure of Hybrid Sols Produced by the Hydrolytic Condensation of (3-Methacryloxypropyl)trimethoxysilane
(AMER CHEMICAL SOC, 2009)
Polysilsesquioxanes containing methacrylate pendant groups were prepared by the sol-gel process through hydrolysis and condensation of (3-methacryloxypropyl)trimethoxysilane (MPTS) dissolved in a methanol/methyl methacrylate ...
Surface energies of linear and cross-linked polymers based on isobornyl methacrylate and methacryl-heptaisobutyl POSS
(Pergamon-Elsevier Science Ltd, 2009-02)
The use of monofunctional polyhedral oligomeric silsesquioxanes (POSS) as polymer modifiers requires controlling the phase separation process producing POSS-rich and polymer-rich domains that occurs in most systems due to ...
Síntese, caracterização e estudo de nanômeros de silício como reforço mecânico em resinas acrílicas a base de PMMA
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação de Mestrado Profissional em Química - PPGQCâmpus São Carlos, 2014-07-17)
The search for improvements in material properties has been studied
extensively and fabrication of polymeric nanocomposites stands out for having
excellent mechanical properties. In this work, silicon nanomers were ...