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|Type:||Artigo de periódico|
|Title:||Conjugated Copolymers Based On Poly(fluorenylene Vinylene) Derivatives Containing Push-pull Units: Synthesis And Characterization|
|Author:||De Freitas J.N.|
|Abstract:||In this work we present the synthesis, via the Gilch route, of two polymers: poly(9,9-dioctyl-2,7-fluorenylene vinylene) and poly(2-bromo-5- hexyloxy-1,4-phenylene vinylene), which contain fluorene and push-pull (2-bromo-5-hexyloxy-1,4-phenylene) units, respectively. We also present the synthesis of novel copolymers based on the combination of these materials in different proportions. Using the Gilch route, the synthesis yields varied between 42% and 71%, and the average molar masses varied between 4 × 10 3 g mol -1 and 70 × 10 3 g mol -1. The thermal, electrochemical and photophysical properties of these polymers were investigated, and their application as hole transporting materials in organic solar cells, in combination with a fullerene derivative (electron transport material), is also presented. © 2011 Elsevier B.V. All rights reserved.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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