Synthesis and water sorption of standard and end-capped polylactides: The effect of morphology

Donghun Koo, An Du, Giuseppe R. Palmese, Richard A. Cairncross

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

This paper investigates the relationship between morphology and water sorption in polylactide (PLA) films. Standard PLAs and palmityl initiated end-capped PLAs were synthesized with various terminating end groups such as hydroxyl, acetoxy, and palmitoyl end groups. Results from wide angle X-ray scattering and atomic force microscopy were correlated with different sorption phenomena, suggesting that crystallization and microphase separation between amorphous PLA and hydrophobic end-group-rich domains reduced water sorption in PLA. The morphological changes were affected by end-group composition, molecular weight and stereoisomerism.

Original languageEnglish (US)
Pages (from-to)718-726
Number of pages9
JournalPolymer Chemistry
Volume3
Issue number3
DOIs
StatePublished - Mar 2012
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Polymers and Plastics
  • Biochemistry
  • Organic Chemistry

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