| dc.contributor | Universidade Estadual Paulista (UNESP) | |
| dc.creator | Arantes, Tatiane M. | |
| dc.creator | Leao, Katyuscya V. | |
| dc.creator | Tavares, Maria Ines B. | |
| dc.creator | Ferreira, Antonio Gilberto | |
| dc.creator | Longo, Elson | |
| dc.creator | Camargo, Emerson R. | |
| dc.date | 2014-05-20T14:17:38Z | |
| dc.date | 2016-10-25T17:40:04Z | |
| dc.date | 2014-05-20T14:17:38Z | |
| dc.date | 2016-10-25T17:40:04Z | |
| dc.date | 2009-08-01 | |
| dc.date.accessioned | 2017-04-05T22:25:27Z | |
| dc.date.available | 2017-04-05T22:25:27Z | |
| dc.identifier | Polymer Testing. Oxford: Elsevier B.V., v. 28, n. 5, p. 490-494, 2009. | |
| dc.identifier | 0142-9418 | |
| dc.identifier | http://hdl.handle.net/11449/25284 | |
| dc.identifier | http://acervodigital.unesp.br/handle/11449/25284 | |
| dc.identifier | 10.1016/j.polymertesting.2009.03.011 | |
| dc.identifier | WOS:000267727000006 | |
| dc.identifier | http://dx.doi.org/10.1016/j.polymertesting.2009.03.011 | |
| dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/870184 | |
| dc.description | The chemical behavior of styrene-butadiene rubber (SBR) and of the SBR/TiO2 and photodegraded SBR/TiO2 nanocomposites was investigated through nuclear magnetic resonance spectroscopy (NMR) in the solid state with magic angle spinning (MAS). The C-13 cross polarization/magic angle spinning (CP/MAS) routine spectrum allowed us to obtain information on the polymer microstructure and also to evaluate the domain mobilities. The variation contact time and the proton spin-lattice relaxation time in the rotating frame (T,pH) were determinant factors to evaluate the dynamic molecular motion. The NMR spectrum of the nanocomposites was dislocated 5 ppm to higher chemical shift, indicating the presence of a strong interaction between the polymer chains and the TiO2 nanoparticles. The VTC experiment showed a rigid domain in the SBR/TiO2 photodegraded nanocomposite due to cross-linking reactions. (C) 2009 Elsevier Ltd. All rights reserved. | |
| dc.description | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | |
| dc.description | Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) | |
| dc.language | eng | |
| dc.publisher | Elsevier B.V. | |
| dc.relation | Polymer Testing | |
| dc.rights | info:eu-repo/semantics/closedAccess | |
| dc.subject | NMR | |
| dc.subject | Carbon-13 solid state | |
| dc.subject | Nanocomposites | |
| dc.subject | Photodegradation | |
| dc.title | NMR study of styrene-butadiene rubber (SBR) and TiO2 nanocomposites | |
| dc.type | Otro | |
