| dc.contributor | Universidade Estadual Paulista (UNESP) | |
| dc.creator | Dahmouche, K. | |
| dc.creator | Santilli, Celso Valentim | |
| dc.creator | Pulcinelli, Sandra Helena | |
| dc.creator | Craievich, A. F. | |
| dc.date | 2014-05-20T15:20:50Z | |
| dc.date | 2016-10-25T17:54:02Z | |
| dc.date | 2014-05-20T15:20:50Z | |
| dc.date | 2016-10-25T17:54:02Z | |
| dc.date | 1999-06-17 | |
| dc.date.accessioned | 2017-04-05T23:27:52Z | |
| dc.date.available | 2017-04-05T23:27:52Z | |
| dc.identifier | Journal of Physical Chemistry B. Washington: Amer Chemical Soc, v. 103, n. 24, p. 4937-4942, 1999. | |
| dc.identifier | 1089-5647 | |
| dc.identifier | http://hdl.handle.net/11449/32049 | |
| dc.identifier | http://acervodigital.unesp.br/handle/11449/32049 | |
| dc.identifier | 10.1021/jp984605h | |
| dc.identifier | WOS:000081150900002 | |
| dc.identifier | http://dx.doi.org/10.1021/jp984605h | |
| dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/876465 | |
| dc.description | Hybrid organic-inorganic two-phase nanocomposites of siloxane-poly(ethylene glycol) (SiO3/2-PEG) and siloxane-poly(propylene glycol) (SiO3/2-PPG) have been obtained by the sol-gel process. In these composites, nanometric siloxane heterogeneities are embedded in a polymeric matrix with covalent bonds in the interfaces. The structure of these materials was investigated in samples with different molecular weights of the polymer using the smalt-angle X-ray scattering (SAXS) technique. The SAXS spectra exhibit a well-defined peak that was attributed to the existence of a strong spatial correlation of siloxane clusters. LiClO4-doped siloxane-PEG and siloxane-PPG hybrids, which exhibit good ionic conduction properties, have also been studied as a function of the lithium concentration [O]/[Li], O being the oxygens of ether type. SAXS results allowed us to establish a structural model for these materials for different basic compositions and a varying [Li] content. The conclusion is consistent with that deduced from ionic conductivity measurements that exhibit a maximum for [O]/[Li] =15. | |
| dc.language | eng | |
| dc.publisher | Amer Chemical Soc | |
| dc.relation | Journal of Physical Chemistry B | |
| dc.rights | info:eu-repo/semantics/closedAccess | |
| dc.title | Small-angle X-ray scattering study of sol-gel-derived siloxane-PEG and siloxane-PPG hybrid materials | |
| dc.type | Otro | |
