Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/57097
Type: Artigo de periódico
Title: Controlling photo-oxidation processes of a polyfluorene derivative: The effect of additives and mechanism
Author: Ferreira, GR
Nowacki, B
Magalhaes, A
DeAzevedo, ER
de Sa, EL
Akcelrud, LC
Bianchi, RF
Abstract: The control of the photo degradation of a fluorene-vinylene-phenylene based-polymer, poly(9,9-di-hexylfluorenediylvinylene-alt-1,4-phenylenevinylene) (LaPPS16) was achieved by addition of a radical scavenger (RS) (enhancing photo resistance) or a radical initiator (RI) (reducing photo resistance). Photoluminescence, UV-Vis absorption, H-1 NMR spectroscopies and gel permeation chromatography (GPC) revealed that the incorporating small amounts of RS or RI is an efficient way to control the rates of the photo-oxidation reactions, and thus to obtain the conjugated polymer with foreseeable degradation rates for applications in blue-light sensitive detectors for neonatal phototherapy. (C) 2014 Elsevier B.V. All rights reserved.
Subject: Optical properties
Oxidation
Radiation damage
Electronic materials
Country: Suíça
Editor: Elsevier Science Sa
Rights: fechado
Identifier DOI: 10.1016/j.matchemphys.2014.02.037
Date Issue: 2014
Appears in Collections:Unicamp - Artigos e Outros Documentos

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