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Preparation of EVA/silica nano composites characterized with solid state nuclear magnetic resonance; Obtencao de nanocomposito de EVA/SILICA e caracterizacao por ressonancia magnetica nuclear no estado solido

Abstract

Nano composites of poly(ethylene-co-vinyl acetate)/silica (SiO{sub 2}) with dimensions of ca. 40 nm were prepared via solution intercalation employing chloroform as a solvent. They were mainly characterized with nuclear magnetic resonance spectroscopy (NMR) employing carbon-13 (polymeric matrix), silicon-29 (nanoparticles) and through the determination of the proton spin-lattice relaxation time in the rotating frame (T{sub 1{rho}H}) (polymer matrix). From the NMR results it was inferred that up to 5% of silica in mass a well dispersed nano composite was obtained, owing to a strong interaction between silica and the EVA matrix. (author)
Authors:
Passos, Adriano A; Tavares, Maria I.B.; Neto, Roberto C.P.; Moreira, Leonardo A; Ferreira, Antonio G., E-mail: mibt@ima.ufrj.br [1] 
  1. Centro de Tecnologia, Instituto de Macromoleculas Professora Eloisa Mano, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ (Brazil)
Publication Date:
Jul 01, 2011
Product Type:
Journal Article
Resource Relation:
Journal Name: Polimeros (Sao Carlos); Journal Volume: 21; Journal Issue: 2
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; CHEMICAL SHIFT; NANOSTRUCTURES; NMR IMAGING; NUCLEAR MAGNETIC RESONANCE; SPIN ECHO; STRUCTURAL CHEMICAL ANALYSIS; DIAGNOSTIC TECHNIQUES; MAGNETIC RESONANCE; RESONANCE
OSTI ID:
21578807
Country of Origin:
Brazil
Language:
Portuguese
Other Identifying Numbers:
Journal ID: ISSN 0104-1428; TRN: BR12V1248056533
Availability:
Available from http://www.scielo.br/pdf/po/v21n2/aop_0706.pdf
Submitting Site:
BRN
Size:
page(s) 98-102
Announcement Date:
Aug 08, 2012

Citation Formats

Passos, Adriano A, Tavares, Maria I.B., Neto, Roberto C.P., Moreira, Leonardo A, and Ferreira, Antonio G., E-mail: mibt@ima.ufrj.br. Preparation of EVA/silica nano composites characterized with solid state nuclear magnetic resonance; Obtencao de nanocomposito de EVA/SILICA e caracterizacao por ressonancia magnetica nuclear no estado solido. Brazil: N. p., 2011. Web. doi:10.1590/S0104-14282011005000023.
Passos, Adriano A, Tavares, Maria I.B., Neto, Roberto C.P., Moreira, Leonardo A, & Ferreira, Antonio G., E-mail: mibt@ima.ufrj.br. Preparation of EVA/silica nano composites characterized with solid state nuclear magnetic resonance; Obtencao de nanocomposito de EVA/SILICA e caracterizacao por ressonancia magnetica nuclear no estado solido. Brazil. doi:10.1590/S0104-14282011005000023.
Passos, Adriano A, Tavares, Maria I.B., Neto, Roberto C.P., Moreira, Leonardo A, and Ferreira, Antonio G., E-mail: mibt@ima.ufrj.br. 2011. "Preparation of EVA/silica nano composites characterized with solid state nuclear magnetic resonance; Obtencao de nanocomposito de EVA/SILICA e caracterizacao por ressonancia magnetica nuclear no estado solido." Brazil. doi:10.1590/S0104-14282011005000023. https://www.osti.gov/servlets/purl/10.1590/S0104-14282011005000023.
@misc{etde_21578807,
title = {Preparation of EVA/silica nano composites characterized with solid state nuclear magnetic resonance; Obtencao de nanocomposito de EVA/SILICA e caracterizacao por ressonancia magnetica nuclear no estado solido}
author = {Passos, Adriano A, Tavares, Maria I.B., Neto, Roberto C.P., Moreira, Leonardo A, and Ferreira, Antonio G., E-mail: mibt@ima.ufrj.br}
abstractNote = {Nano composites of poly(ethylene-co-vinyl acetate)/silica (SiO{sub 2}) with dimensions of ca. 40 nm were prepared via solution intercalation employing chloroform as a solvent. They were mainly characterized with nuclear magnetic resonance spectroscopy (NMR) employing carbon-13 (polymeric matrix), silicon-29 (nanoparticles) and through the determination of the proton spin-lattice relaxation time in the rotating frame (T{sub 1{rho}H}) (polymer matrix). From the NMR results it was inferred that up to 5% of silica in mass a well dispersed nano composite was obtained, owing to a strong interaction between silica and the EVA matrix. (author)}
doi = {10.1590/S0104-14282011005000023}
journal = {Polimeros (Sao Carlos)}
issue = {2}
volume = {21}
place = {Brazil}
year = {2011}
month = {Jul}
}