Synthesis and Characterization of Decahydronaphthalene-Containing Polyesters

Joseph M. Dennis, Joshua S. Enokida, Timothy Edward Long

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Melt polycondensation of decahydronaphthalate dimethyl ester with various diols enabled the synthesis of novel polyesters containing hydrogenated naphthalene rings. Decahydronaphthalene-containing polyesters demonstrated thermal stabilities above 350°C, and compression molding provided ductile, optically clear films. 1H NMR spectroscopy confirmed transesterification, and intrinsic viscosity measurements verified high molecular weights. Differential scanning calorimetry and dynamic mechanical analysis revealed structure-property relationships for glass transition temperatures (Tg) and β-relaxations. Melt rheology examined the effect of chemical structure on flow behavior, and time-temperature superposition revealed two distinct transitions, which correlated to the Tg and chain disentanglement. Furthermore, evaluation of the fractional free volume and flow activation energies suggested a structural dependence associated with regularity along the polymer backbone.

Original languageEnglish
Pages (from-to)8733-8737
Number of pages5
JournalMacromolecules
Volume48
Issue number24
DOIs
Publication statusPublished - 2015 Dec 22
Externally publishedYes

Fingerprint

Polyesters
Compression molding
Transesterification
Free volume
Viscosity measurement
Dynamic mechanical analysis
Naphthalene
Polycondensation
Rheology
Nuclear magnetic resonance spectroscopy
Differential scanning calorimetry
Esters
Polymers
Thermodynamic stability
Activation energy
Molecular weight
Temperature
decalin
Glass transition temperature
naphthalene

ASJC Scopus subject areas

  • Organic Chemistry
  • Materials Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry

Cite this

Synthesis and Characterization of Decahydronaphthalene-Containing Polyesters. / Dennis, Joseph M.; Enokida, Joshua S.; Long, Timothy Edward.

In: Macromolecules, Vol. 48, No. 24, 22.12.2015, p. 8733-8737.

Research output: Contribution to journalArticle

Dennis, Joseph M. ; Enokida, Joshua S. ; Long, Timothy Edward. / Synthesis and Characterization of Decahydronaphthalene-Containing Polyesters. In: Macromolecules. 2015 ; Vol. 48, No. 24. pp. 8733-8737.
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