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, cilt.94, sa.11, ss.2023-2027, 2009 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 94 Sayı: 11
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1016/j.polymdegradstab.2009.07.026
  • Dergi Adı: POLYMER DEGRADATION AND STABILITY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.2023-2027
  • Anahtar Kelimeler: 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
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

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.