Dependency of Thermal and Mechanical Properties on the Composition of Mixed-Substituent Poly(fluoroalkoxyphosphazenes)

Andrew E. Maher, Catherine M. Ambler, Eric S. Powell, Harry R. Allcock

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

A series of poly(fluoroalkoxyphosphazenes) containing a mixture of 2,2,3,3,4,4,5,5-octafluoropentoxy and 2,2,2-trifluoroethoxy substituents was synthesized. The series included polymers with 25-94% incorporation of the trifluoroethoxy substituent, as well as single-substituent polymers with 100% octafluoropentoxy or trifluoroethoxy side groups. Polymers were analyzed by multinuclear NMR spectroscopy, gel permeation chromatography, differential scanning calorimetry, and thermogravimetric analysis, and were subjected to limiting oxygen index and microtensile testing. It was found that the T g and T d values among the cosubstituted polymers varied little with changes in composition, but the mechanical properties varied over a wide range.

Original languageEnglish (US)
Pages (from-to)2569-2576
Number of pages8
JournalJournal of Applied Polymer Science
Volume92
Issue number4
DOIs
StatePublished - May 15 2004

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Polymers
Thermodynamic properties
Mechanical properties
Chemical analysis
Gel permeation chromatography
Nuclear magnetic resonance spectroscopy
Thermogravimetric analysis
Differential scanning calorimetry
Oxygen
Testing

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry

Cite this

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abstract = "A series of poly(fluoroalkoxyphosphazenes) containing a mixture of 2,2,3,3,4,4,5,5-octafluoropentoxy and 2,2,2-trifluoroethoxy substituents was synthesized. The series included polymers with 25-94{\%} incorporation of the trifluoroethoxy substituent, as well as single-substituent polymers with 100{\%} octafluoropentoxy or trifluoroethoxy side groups. Polymers were analyzed by multinuclear NMR spectroscopy, gel permeation chromatography, differential scanning calorimetry, and thermogravimetric analysis, and were subjected to limiting oxygen index and microtensile testing. It was found that the T g and T d values among the cosubstituted polymers varied little with changes in composition, but the mechanical properties varied over a wide range.",
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Dependency of Thermal and Mechanical Properties on the Composition of Mixed-Substituent Poly(fluoroalkoxyphosphazenes). / Maher, Andrew E.; Ambler, Catherine M.; Powell, Eric S.; Allcock, Harry R.

In: Journal of Applied Polymer Science, Vol. 92, No. 4, 15.05.2004, p. 2569-2576.

Research output: Contribution to journalArticle

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