Cure kinetics of a cyanate ester blended with poly(phenylene oxide)

Shao Jung Wu, Fwu Long Mi

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The cure kinetics and mechanisms of a cyanate ester and its blends with poly(phenylene oxide) (PPO) were studied using differential scanning calorimetry and Fourier transform infrared spectroscopy. The results showed that blending with PPO has an effect on the cure reaction. Reaction rates of the cyanate ester blends were higher in the initial stage than that of the neat cyanate ester; however, the conversion reached decreased with increasing PPO content. Experimental data, showing autocatalytic behavior, were compared with Kamal's model which includes two apparent rate constants and two reaction orders. This model apparently describes well the kinetics, but diffusion control in the vitrified state limits the reactions from going further. By introducing a diffusion factor f(α) into this model, it becomes possible to predict the cure kinetics over the whole range of conversion.

Original languageEnglish
Pages (from-to)1296-1303
Number of pages8
JournalPolymer International
Volume55
Issue number11
DOIs
Publication statusPublished - Nov 2006
Externally publishedYes

Fingerprint

Cyanates
Polyphenylene oxides
Oxides
Esters
Kinetics
Reaction rates
Fourier transform infrared spectroscopy
Differential scanning calorimetry
Rate constants

Keywords

  • Blend
  • Cure kinetics
  • Cyanate ester
  • Diffusion control
  • Poly(phenylene oxide)

ASJC Scopus subject areas

  • Polymers and Plastics

Cite this

Cure kinetics of a cyanate ester blended with poly(phenylene oxide). / Wu, Shao Jung; Mi, Fwu Long.

In: Polymer International, Vol. 55, No. 11, 11.2006, p. 1296-1303.

Research output: Contribution to journalArticle

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