Processing-dependent mechanical properties of solvent cast cyclic polyphthalaldehyde

Hector Lopez Hernandez, Satoshi K. Takekuma, Edgar B. Mejia, Christopher L. Plantz, Nancy R Sottos, Jeffrey S Moore, Scott R. White

Research output: Contribution to journalArticle

Abstract

Cyclic polyphthalaldehyde (cPPA) is a metastable polymer that undergoes rapid depolymerization in the solid state making it useful as a packaging and substrate material for transient electronics. Here, we report solvent based processing methods to fabricate free standing polymeric films and the mechanical properties of those films. Three solvents: dioxane (bp 101 °C), chloroform (bp 61 °C), and DCM (bp 40 °C) were explored for solvent casting of cPPA. Higher residual solvent concentrations were observed with an increase in the boiling point of the solvent, leading to large variations in the glass transition temperature (64–95 °C), as measured by dynamic mechanical analysis. Quasi-static tensile testing of solvent cast cPPA films gave an elastic modulus (2.5–3 GPa), tensile strength (25–35 MPa), and failure strain (1–1.5%) that vary depending on the type of solvent used.

Original languageEnglish (US)
Pages (from-to)29-34
Number of pages6
JournalPolymer
Volume162
DOIs
StatePublished - Jan 24 2019

Fingerprint

Mechanical properties
Processing
Depolymerization
Boiling point
Tensile testing
Dynamic mechanical analysis
Chloroform
Chlorine compounds
Polymer films
Packaging
Polymers
Casting
Tensile strength
Electronic equipment
Elastic moduli
Substrates

Keywords

  • Metastable polymer
  • Plasticizer
  • Polyphthalaldehyde
  • Solvent casting

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

Cite this

Processing-dependent mechanical properties of solvent cast cyclic polyphthalaldehyde. / Lopez Hernandez, Hector; Takekuma, Satoshi K.; Mejia, Edgar B.; Plantz, Christopher L.; Sottos, Nancy R; Moore, Jeffrey S; White, Scott R.

In: Polymer, Vol. 162, 24.01.2019, p. 29-34.

Research output: Contribution to journalArticle

Lopez Hernandez, Hector ; Takekuma, Satoshi K. ; Mejia, Edgar B. ; Plantz, Christopher L. ; Sottos, Nancy R ; Moore, Jeffrey S ; White, Scott R. / Processing-dependent mechanical properties of solvent cast cyclic polyphthalaldehyde. In: Polymer. 2019 ; Vol. 162. pp. 29-34.
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AU - Moore, Jeffrey S

AU - White, Scott R.

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