Self-Curable Benzoxazine Functional Polybutadienes Synthesized by Click Chemistry

KUKUT M., Kışkan B., Yagci Y.

DESIGNED MONOMERS AND POLYMERS, cilt.12, sa.2, ss.167-176, 2009 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 12 Sayı: 2
  • Basım Tarihi: 2009
  • Doi Numarası: 10.1163/156855509x412108
  • Dergi Adı: DESIGNED MONOMERS AND POLYMERS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.167-176
  • Anahtar Kelimeler: Polybutadiene, click chemistry, benzoxazine, thermoset, thermal stability, RING-OPENING POLYMERIZATION, ZERO SHRINKAGE POLYBENZOXAZINES, CROSS-LINKING, CATIONIC-POLYMERIZATION, PHENOLIC MATERIALS, MAIN-CHAIN, RESINS, MONOMERS, VULCANIZATION, CURE
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

Novel side-chain benzoxazine functional polybutadiene (PB-benzoxazine) was synthesized by using click chemistry strategy. First, some of double bonds were brominated with Br-2 in CCl4 and subsequently converted to azido groups by using NaN3 in DMF. Propargyl benzoxazine was prepared independently by a ring-closure reaction between p-propargyloxy aniline, paraformaldehyde and phenol. Finally, azidofunctionalized polybutadiene was coupled to propargyl benzoxazine with high efficiency by click chemistry. The spectral and thermal analysis confirmed the presence of benzoxazine functionality in the resulting polymer It is shown that PB-benzoxazine undergoes thermally activated Curing in the absence of any catalyst forming polybutadiene thermoset with high char yield. (C) Koninklijke Brill NV, Leiden, 2009