Studies on a series of bis-arylimides containing four phenylene rings and their polymers: 2. Polymerization of monomers and thermal analysis of the polymers

  • Barton J
  • Hamerton I
  • Rose J
 et al. 
  • 5

    Readers

    Mendeley users who have this article in their library.
  • 23

    Citations

    Citations of this article.

Abstract

Examination by d.s.c. of the thermal cure of two aryl bis-maleimides and the corresponding pair of citraconimides, in which the imide groups are attached to the ends of aromatic residues containing four phenylene rings, indicates that the pure bis-maleimides polymerize at lower temperatures than the corresponding citraconimides. A second reaction occurs after polymerization of the pure bis-maleimides has stopped; this appears from FTi.r. to involve residual maleimido groups; pure samples of bis-4-maleimidophenylmethane and bis-4-maleimidophenyl ether also showed this effect. Weight reduction commensurate with evolution of about 1.2 moles of cyclopentadiene occurred on curing the corresponding two bis-nadimides containing four phenylene rings at atmospheric pressure, the extent of this loss being independent of temperature in the range 250-350°C. Resins from the bis-maleimides containing four phenylene rings showed thermal/oxidative stability, measured by t.g.a., similar to that found for resins from bis-4-maleimidophenylmethane and bis-4-maleimidophenyl ether; resins from the bis-maleimides were rather more stable than those from the corresponding bis-citraconimides and bis-nadimides. © 1991.

Author-supplied keywords

  • bis-citraconimides
  • bis-maleimides
  • bis-nadimides
  • differential scanning calorimetry
  • phenylene groups
  • polymerization
  • thermal stability
  • thermo-oxidative stability
  • thermogravimetric analysis

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Authors

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free