Paper Title:
Bismaleimide (BMI) Resin Modified by PEEK Bearing Pendant Reactive Propenyl Groups
  Abstract

A reactive poly (ether ether ketone) PEEK with pendant propenyl groups was prepared by nucleophilic aromatic substitution of 4, 4’-Difluorobenzophenone (DFBP), diallylbisphenol A (DABPA) and bisphenyl A (BPA) as monomer. The prepared reactive PEEK with varying proportion was introduced to toughen bismaleimide (BMI) resin composing of 4,4'-bismaleimidodiphenyl methane (BMDM) and DABPA by melt technique without any solvent. The properties of the BMI resin as a function of the reactive PEEK concentration were evaluated. The presence of PEEK heightened the temperature of “ene” reaction for BMI and DABPA and slightly lowered the glass transition temperature (Tg) of the blends. The impact strength and fracture toughness were highest elevated from 9.0 KJ/m2 and 186 J/m2 to 15.2 KJ/m2 and 239 J/m2 by 10 phr PEEK, respectively. At the same time, the thermal stability was improved by increasing the proportion of the PEEK. Scanning electron microscopy (SEM) of fracture surface revealed that the blends have good interfacial adhesion.

  Info
Periodical
Advanced Materials Research (Volumes 197-198)
Edited by
Huaiying Zhou, Tianlong Gu, Daoguo Yang, Zhengyi Jiang, Jianmin Zeng
Pages
1299-1305
DOI
10.4028/www.scientific.net/AMR.197-198.1299
Citation
F. C. Ding, Q. S. Chen, S. L. Lai, X. Y. Li, "Bismaleimide (BMI) Resin Modified by PEEK Bearing Pendant Reactive Propenyl Groups", Advanced Materials Research, Vols. 197-198, pp. 1299-1305, 2011
Online since
February 2011
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$32.00
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