Benzoxazine-Based Thermosets with Autonomous Self-Healing Ability


Arslan M., KISKAN B. , Yagci Y.

MACROMOLECULES, cilt.48, ss.1329-1334, 2015 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 48 Konu: 5
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1021/ma5025126
  • Dergi Adı: MACROMOLECULES
  • Sayfa Sayıları: ss.1329-1334

Özet

A self-healing strategy for poly(propylene oxide)s bearing benzoxazine units (PPO-Benz) through supramolecular attractions is described. Poly(propylene oxide) bisamine (PPO) with a molecular wieght of 2000 Da was reacted with formaldehyde and bisphenol A to yield desired PPO-Benz with 12 360 Da. The cross-linked polymer films were then prepared by solvent casting of suitable compositions of PPO-Benz and carboxlic acid containing benzoxazine monomer (Carb-Benz) in chloroform followed by thermal ring-opening reaction of benzoxazine groups at 200 degrees C. Thermal curing and thermal stability of the film and final products were investigated. It was demonstrated that the self-healing capacity of the films was improved by employing Carb-Benz in the formulation.