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Kinetics of the thermally induced precursor curing to polymer via statistical analysis of TEM images

Authors
Journal
Journal of Non-Crystalline Solids
0022-3093
Publisher
Elsevier
Publication Date
Volume
353
Issue
2
Identifiers
DOI: 10.1016/j.jnoncrysol.2006.10.004
Keywords
  • Tem/Stem
  • Microstructure
  • Polymers And Organics
Disciplines
  • Physics

Abstract

Abstract Thermally induced curing of the precursor to the cross-linked polymer was studied with transmission electron microscopy. The cured polymer was observed to have micro-domain morphology. Analysis of the microscopic images resulted in the statistical size distributions of micro-domains described subsequently using principles of irreversible thermodynamics. The statistical distribution parameters were determined to change with the curing temperature. A correlation of micro-structural and macroscopic parameters (the mean size of micro-domains and the dynamic Young’s modulus), both varying during the precursor curing, was found and explained in terms of the kinetic concept of fracture.

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