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

Ferreira, Giovana Ribeiro
Nowacki, B.
Magalh?es, A.
Azevedo, E. R. de
S?, E. L. de
Akcelrud, L. C.
Bianchi, Rodrigo Fernando

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Publication date

January 2014

DOI

10.1016/j.matchemphys.2014.02.037

Publisher

Elsevier BV

Journal

Materials Chemistry and Physics

Abstract

The control of the photo degradation of a fluoreneevinyleneephenylene based-polymer, poly(9,9-dihexylfluorenediylvinylene-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, UVeVis absorption, 1 H 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

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

Abstract

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

Abstract

Extracted data

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