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Type: Artigo
Title: De-aggregation of polyfluorene derivative by blending with a series of poly(alkyl methacrylate)s with varying sidegroup sizes
Author: Tozoni, José Roberto
Guimarães, Francisco Eduardo Gontigo
Atvars, Teresa Dib Zambon
Nowacki, Bruno
Akcelrud, Leni
Bonagamba, Tito José
Abstract: A polyfluorene derivative of the PPV, poly(9,9′-n-dihexyl-2,7-fluorenedilvinylene-alt-1,4-phenylenevinylene), with a strong tendency to aggregation was blended with several members of a series composed by poly(alkyl methacrylate)s with the following substituents in the ester position: methyl, ethyl, isopropyl, isobutyl, n-butyl, and cyclohexyl. The de-aggregation effect in blends was studied by steady-state photoluminescence spectroscopy using several blend compositions. The efficiency of each dispersing phase was discussed in terms of the polymer miscibility, controlled by interaction parameters between the polyfluorene and every poly(alkyl methacrylate)s, here described using Hildebrand solubility parameters
Subject: Polifluorenos
Country: Reino Unido
Editor: Elsevier
Rights: Fechado
Identifier DOI: 10.1016/j.eurpolymj.2009.04.015
Date Issue: 2009
Appears in Collections:IQ - Artigos e Outros Documentos

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