Examining the thermo-mechanical properties of novel cyanate ester blends through empirical measurement and simulation

Alasdair O. Crawford, Brendan J. Howlin, Gabriel Cavalli, Ian Hamerton*

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

13 Citations (Scopus)

Abstract

Three cyanate ester monomer or oligomer species: 2,2-bis(4-cyanatophenyl) propane 1, 1-1-bis(4-dicyanatophenyl)ethane 2, and the oligomeric phenolic cyanate (Primaset™ PT30) 3, are blended in various ratios to form binary mixtures, formulated with copper(II) acetylacetonate (200 ppm) in dodecylphenol (1% w/v active copper suspension) and cured (2 K/min to 150 °C + 1 h; 2 K/min to 200 °C + 3 h) followed by a post cure (2 K/min to 260 °C + 1 h). Thermal analysis using DSC reveals good agreement with literature data for the homopolymers: typical polymerisation enthalpies of ca. 97-98 kJ/mol. cyanate are obtained for 1 and 2, with slightly lower values (ca. 80-90 kJ/mol.) obtained for Primaset™ PT30. DMTA data show the possibility of using binary blends of the polymers to yield novel materials with similar thermal and mechanical properties to Primaset™ PT30, while improving the processability of the more highly aromatic oligomer. Two of the homopolymers (1 and 2) and a binary (1:1) blend of the same were simulated. Molecular dynamics experiments reveal good agreement with empirical data generated using DSC, DMTA and TGA.

Original languageEnglish
Pages (from-to)596-605
Number of pages10
JournalReactive and Functional Polymers
Volume72
Issue number9
DOIs
Publication statusPublished - Sep 2012

Keywords

  • Cyanate esters
  • Molecular simulation
  • Polymer blends

Fingerprint Dive into the research topics of 'Examining the thermo-mechanical properties of novel cyanate ester blends through empirical measurement and simulation'. Together they form a unique fingerprint.

Cite this