Thermal decomposition of polystyrene-b-poly(2-vinylpyridine) coordinated to co nanoparticles


Elmaci A., Hacaloğlu J. , Kayran C. , Sakellariou G., Hadjichristidis N.

POLYMER DEGRADATION AND STABILITY, vol.94, no.11, pp.2023-2027, 2009 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 94 Issue: 11
  • Publication Date: 2009
  • Doi Number: 10.1016/j.polymdegradstab.2009.07.026
  • Title of Journal : POLYMER DEGRADATION AND STABILITY
  • Page Numbers: pp.2023-2027
  • Keywords: Metal nanoparticles coordinated to block polymers, Metal polystyrene-b-poly(2-vinylpyridine), Thermal degradation, Pyrolysis mass spectrometry, DEGRADATION, POLY(4-VINYLPYRIDINE), 4-VINYLPYRIDINE, COPOLYMERS, STABILITY, FILMS

Abstract

Direct pyrolysis mass spectrometry analyses of polystyrene-block-poly(2-vinylpyridne), PS-b-P2VP, indicated that the thermal degradation of each component occurred independently through the decomposition pathways proposed for the corresponding homopolymers; depolymerization for PS and depolymerization and loss of protonated oligomers for P2VP by a more complex degradation mechanism. On the other hand, upon coordination to cobalt nanoparticles, thermal decomposition of the P2VP blocks was initiated by loss of pyridine units, leaving an unsaturated and/or crosslinked polymer backbone that degraded at relatively high temperatures. (C) 2009 Elsevier Ltd. All rights reserved.