Controlling photo-oxidation processes of a polyfluorene derivative: The effect of additives and mechanism

被引：6

作者：

Ferreira, G. R. ^{[1
]}

Nowacki, B. ^{[2
]}

Magalhaes, A. ^{[3
]}

deAzevedo, E. R. ^{[4
]}

de Sa, E. L. ^{[5
]}

Akcelrud, L. C. ^{[2
]}

Bianchi, R. F. ^{[1
]}

机构：

[1] Lab Polymers & Elect Properties Mat UFOP, Ouro Preto, MG, Brazil

[2] Paulo Scarpa Polymer Lab UFPR, Curitiba, Parana, Brazil

[3] Univ Estadual Campinas, Inst Quim, UNICAMP, Campinas, SP, Brazil

[4] Univ Sao Paulo, USP, Inst Fis Sao Carlos, Sao Carlos, SP, Brazil

[5] Univ Fed Parana, Dept Chem, BR-80060000 Curitiba, Parana, Brazil

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2014年 / 146卷 / 03期

基金：

巴西圣保罗研究基金会;

关键词：

Optical properties; Oxidation; Radiation damage; Electronic materials; LIGHT; PHOTODEGRADATION; DEGRADATION; OXIDATION; EMISSION;

D O I：

10.1016/j.matchemphys.2014.02.037

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页码：212 / 217

页数：6

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