| dc.contributor | Universidade Estadual Paulista (UNESP) | |
| dc.creator | Fernandes, D. M. | |
| dc.creator | Hechenleitner, AAW | |
| dc.creator | Job, A. E. | |
| dc.creator | Radovanocic, E. | |
| dc.creator | Pineda, EAG | |
| dc.date | 2014-05-20T15:30:14Z | |
| dc.date | 2016-10-25T18:05:41Z | |
| dc.date | 2014-05-20T15:30:14Z | |
| dc.date | 2016-10-25T18:05:41Z | |
| dc.date | 2006-05-01 | |
| dc.date.accessioned | 2017-04-06T00:15:57Z | |
| dc.date.available | 2017-04-06T00:15:57Z | |
| dc.identifier | Polymer Degradation and Stability. Oxford: Elsevier B.V., v. 91, n. 5, p. 1192-1201, 2006. | |
| dc.identifier | 0141-3910 | |
| dc.identifier | http://hdl.handle.net/11449/39669 | |
| dc.identifier | http://acervodigital.unesp.br/handle/11449/39669 | |
| dc.identifier | 10.1016/j.polymdegradstab.2005.05.024 | |
| dc.identifier | WOS:000236076400023 | |
| dc.identifier | http://dx.doi.org/10.1016/j.polymdegradstab.2005.05.024 | |
| dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/882526 | |
| dc.description | A kraft lignin derivative (KLD) obtained by reaction with p-aminobenzoic acid/phthalic anhydride was blended with poly(vinyl alcohol) (PVA) by solution casting from DMSO. PVA and PVA/KLD films were exposed to ultraviolet radiation (24, 48, and 96 h) and analyzed by thermogravimetry (TG), differential scanning calorimetry (DSC), infrared spectroscopy (FTIR), hydrogen nuclear magnetic resonance (H-1 NMR) spectroscopy, and scanning electron microscopy (SEM). PVA films show a loss of thermal stability due to irradiation. PVA/KLD reveals greater thermal stability than PVA and an increase in thermal stability after irradiation. These results suggest that the incorporation of KLD into PVA provides a gain in thermal and photochemical stability. FTIR, H-1 NMR, DSC, and TG results obtained for the blends suggest that intermolecular interactions between PVA and KLD chains are present. SEM micrographs revealed blend miscibility for a KLD blend content of up to 15 wt%, as observed at magnification of 1000 times. (c) 2005 Elsevier Ltd. All rights reserved. | |
| dc.language | eng | |
| dc.publisher | Elsevier B.V. | |
| dc.relation | Polymer Degradation and Stability | |
| dc.rights | info:eu-repo/semantics/closedAccess | |
| dc.subject | kraft lignin derivative | |
| dc.subject | poly(vinyl alcohol) | |
| dc.subject | blends | |
| dc.subject | NMR | |
| dc.subject | FTIR | |
| dc.subject | SEM | |
| dc.title | Thermal and photochemical stability of poly(vinyl alcohol)/modified lignin blends | |
| dc.type | Otro | |
