Evaluation of modified silica nanoparticles in carboxylated nitrile rubber nanocomposites

Author(s)

Sala, Renata L. ^[1] ; Arantes, Tatiane M. ^[1] ; Longo, Elson ^[1] ; Leite, Edson R. ^[1] ; Paranhos, Caio M. ^[2] ; Camargo, Emerson R. ^[1]

Affiliation

^[1] UFSCar Fed Univ Sao Carlos, Dept Chem, LIEC Interdisciplinary Lab Electrochem & Ceram, BR-13565990 Sao Carlos, SP - Brazil

^[2] UFSCar Fed Univ Sao Carlos, Dept Chem, BR-13565990 Sao Carlos, SP - Brazil

• Document type: Journal article
• Source: COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS; v. 462, p. 45-51, NOV 20 2014.
• Web of Science Citations: 6

Abstract

Surface-modified silica nanoparticles have a plenty of applications, such as coatings, dyes or biomarkers, catalysts and encapsulated products. When modified with 3-(trimethoxysilyl)propyl methacrylate (SiO2-MPS) or covered with a polymeric shell obtained from a reaction between divinylbenzene and styrene (SiO2-Pol), these SiO2 nanoparticles induced distinct arrangements in polymer nanocomposites (PNC) prepared with commercial carboxylated nitrile rubber (XNBR). The hydrophilicity character of the modified SiO2 nanoparticles was also altered, improving their interaction with the XNBR macromolecules. Consequently, choosing the PNC properties for different conditions and applications became possible due to the adjustment of the nanoparticle surface characteristics. Although the final characteristics of the nanocomposites films varied according to the nanoparticle used, the PNC prepared with SiO2-Pol presented better homogeneity than those with SiO2-MPS. 2014 Elsevier B.V. All rights reserved. (AU)

• FAPESP's process: 12/07067-0 - Photocatalyst based in bismuth titanate synthesized by the oxidant peroxo method (OPM)
• Grantee: Emerson Rodrigues de Camargo
• Support Opportunities: Regular Research Grants