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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Dynamic and structural correlations in nanocomposites of silica with modified surface and carboxylated nitrile rubber

Full text
Author(s):
Sala, Renata L. [1] ; Oliveira Xavier, Tatielih P. [2] ; Venancio, Tiago [2] ; Arantes, Tatiane Moraes [3] ; Paranhos, Caio M. [2] ; Camargo, Emerson R. [1]
Total Authors: 6
Affiliation:
[1] UFSCar Fed Univ Sao Carlos, Dept Chem, LIEC, Rod Washington Luis Km 235, CP 676, BR-13565905 Sao Carlos, SP - Brazil
[2] UFSCar Fed Univ Sao Carlos, Dept Chem, Rod Washington Luis Km 235, CP 676, BR-13565905 Sao Carlos, SP - Brazil
[3] Fed Inst Educ Sci & Technol Goiano, Chem, Sul Goiania Ave, Km 1, BR-75901970 Rio Verde, Go - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Journal of Colloid and Interface Science; v. 466, p. 247-253, MAR 15 2016.
Web of Science Citations: 2
Abstract

Distinct affinities between the organic and inorganic phases were observed in nanocomposites prepared through a colloidal route with carboxylated nitrile rubber and modified silica nanoparticles, which resulted in variable mechanical properties and improved thermal stability. Nanoparticles with modified surface affected the macromolecular arrangements of the elastomeric matrix, changing the final mechanical behavior of the nanocomposite, which could be predicted by the spin-lattice relaxation time measured by solid-state NMR. It was also possible to identify how each different nanoparticle affected the molecular dynamic of nanocomposite, correlating the dynamic-mechanical analysis with the NMR data of the saturated carbons of the elastomer. (C) 2015 Elsevier Inc. All rights reserved. (AU)

FAPESP's process: 13/07296-2 - CDMF - Center for the Development of Functional Materials
Grantee:Elson Longo da Silva
Support type: Research Grants - Research, Innovation and Dissemination Centers - RIDC
FAPESP's process: 12/07067-0 - Photocatalyst based in bismuth titanate synthesized by the oxidant peroxo method (OPM)
Grantee:Emerson Rodrigues de Camargo
Support type: Regular Research Grants
FAPESP's process: 12/05013-0 - Commercial carboxuylated NBR polymers properties modified by the insertion of sintetic nanoparticles
Grantee:Renata Lang Sala
Support type: Scholarships in Brazil - Master