One-Pot Synthesis of Amide-Functional Main-Chain Polybenzoxazine Precursors

Durukan C., Kışkan B., Yağcı Y.

POLYMERS, cilt.11, 2019 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 11
  • Basım Tarihi: 2019
  • Doi Numarası: 10.3390/polym11040679
  • Dergi Adı: POLYMERS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Anahtar Kelimeler: polybenzoxazine, benzoxazine, polyamide, ring-opening polymerization, dihydrocoumarine, RING-OPENING POLYMERIZATION, BENZOXAZINE MONOMERS, THERMAL POLYMERIZATION, THERMOSETS, 1,3-BENZOXAZINES, MECHANISM, DESIGN, ETHER, CURE
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

Main-chain polybenzoxazines containing amide linkages were successfully prepared in one pot. Three different polymers were synthesized by reacting 3,4-dihydrocoumarine (DHC) and paraformaldehyde with 1,3-diaminopropane or 1,6-diaminohexane or Jeffamine ED-900. The one-pot reaction proceeded through the combination of the ring-opening of DHC with amines, and subsequent Mannich and ring-closure reactions occurring in a cascading manner. The obtained polymer from Jeffamine exhibited good film-forming properties, and free-standing flexible films were easily solvent- casted on Teflon plates. All polymeric precursors were characterized by spectroscopic analysis, and their curing behavior and thermal stability were investigated by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA).