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Synthesis and characterization of semiconductor polymers having different phenylene–vinylene conjugation lengths

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Abstract

We have synthesized phenylene–vinylene (PV) polymers containing segments with different conjugation lengths interspaced by random distributed aliphatic segments. Infrared (IR) and ultraviolet–visible (UV–vis) spectroscopies, hydrogen nuclear magnetic resonance (1H NMR) spectrometry and differential scanning calorimetry (DSC) were used to characterize the prepared copolymers’ structures. Polymers molecular weights were determined by gel permeation chromatography (GPC). The effect of polymer structure and composition on emission properties was studied by fluorescence (PL) spectroscopy under different irradiation wavelength. The emission energy shift due to segments with longer conjugation lengths was minor owed to the low polymerization degree achieved.

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Acknowledgments

The authors thank CNPq and FAPESP for financial support.

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Authors and Affiliations

  1. Department of Electronic Systems Engineering, Polytechnic School, University of São Paulo, Av. Prof. Luciano Gualberto 158, Cidade Universitária, Sao Paulo, SP, CEP 05508-970, Brazil

    Tunísia Eufrausino Schuler & Roberto Koji Onmori

  2. Department of Metallurgical and Materials Engineering, Polytechnic School, University of São Paulo, Av. Prof. Mello Moraes, 2463, Cidade Universitária, São Paulo, SP, CEP 05508-970, Brazil

    Shu Hui Wang & Shirley Possidonio

Authors
  1. Tunísia Eufrausino Schuler
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  2. Shu Hui Wang
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  3. Shirley Possidonio
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  4. Roberto Koji Onmori
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Correspondence to Roberto Koji Onmori.

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Schuler, T.E., Wang, S.H., Possidonio, S. et al. Synthesis and characterization of semiconductor polymers having different phenylene–vinylene conjugation lengths. J Mater Sci 43, 541–545 (2008). https://doi.org/10.1007/s10853-007-1710-y

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  • DOI: https://doi.org/10.1007/s10853-007-1710-y

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