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Thermal characterization of novel p-nitrobenzylacrylate–diisopropyl fumarate copolymer synthesized under microwave energy

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Abstract

Copolymers of p-nitrobenzyl acrylate and diisopropyl fumarate with different feed ratios were synthesized under microwave and thermal heating conditions, and then characterized by IR, 1H-, and 13C-NMR spectroscopy. Average molecular weights were analyzed by size exclusion chromatography (SEC). Monomer reactivity ratios were obtained from an extended Kelen–Tüdös method. Differential scanning calorimetry and thermogravimetry were used to evaluate the thermal behavior of all copolymers synthesized under microwave energy. Based on the products analyzed by SEC and gas chromatography–mass spectrometry, a possible mechanism of degradation is postulated.

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Acknowledgements

This study was supported by “Universidad Nacional de La Plata” (Grants 11/X515 and 11/X507), and “Comisión de Investigaciones Científicas de la Provincia de Buenos Aires” (CIC), Argentina. Authors also thank Mrs. Melisa Lamanna and Mr. Juan Giussi for their assistance in TG and GC–MS experiments.

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Authors and Affiliations

  1. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas (INIFTA), Facultad de Ciencias Exactas, Universidad Nacional de La Plata - CONICET CCT La Plata, CC 16 Sucursal 4, 1900, La Plata, Argentina

    Tamara G. Oberti & M. Susana Cortizo

  2. Departamento de Física e Instituto de Física de La Plata (IFLP), Facultad de Ciencias Exactas, Universidad Nacional de La Plata, CC 67, 1900, La Plata, Argentina

    José Luis Alessandrini

  3. Comisión de Investigaciones Científicas de la Provincia de Buenos Aires (CIC), 1900, La Plata, Argentina

    José Luis Alessandrini

Authors
  1. Tamara G. Oberti
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  2. José Luis Alessandrini
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  3. M. Susana Cortizo
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Correspondence to M. Susana Cortizo.

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Scheme 2

Proposal thermal degradation mechanisms of poly(NBA-co-DIPF) (TIFF 799 kb)

Scheme 3

Proposal thermal degradation mechanisms of poly(NBA-co-DIPF) from end chain (TIFF 611 kb)

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Oberti, T.G., Alessandrini, J.L. & Susana Cortizo, M. Thermal characterization of novel p-nitrobenzylacrylate–diisopropyl fumarate copolymer synthesized under microwave energy. J Therm Anal Calorim 109, 1525–1531 (2012). https://doi.org/10.1007/s10973-011-1917-7

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  • DOI: https://doi.org/10.1007/s10973-011-1917-7

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