Using the solubility parameter to explain disperse dye sorption on polylactide

David Karst, Yiqi Yang

Research output: Contribution to journalArticle

95 Citations (Scopus)

Abstract

The solubility parameters of polylactide (PLA), poly(ethylene terephthalate) (PET), and various disperse dyes calculated according to the group contribution method were used to explain the low sorption of some disperse dyes on PLA but the high sorption of the same dyes on PET. It was found that the dyes with high sorption on PLA tended to have solubility parameters near that of PLA, which has a lower solubility parameter than that of PET. It was also found that the solubility parameter, which was calculated based on cohesive energy and molar volume at 25°C, was more appropriate for explaining dyeings at lower temperature, 100 and 110°C, than those at higher temperature, 130°C. Based on the finding that dyes with solubility parameters near that of PLA tend to have high sorption on PLA, general structures for disperse dye that may have high sorption on PLA were proposed.

Original languageEnglish (US)
Pages (from-to)416-422
Number of pages7
JournalJournal of Applied Polymer Science
Volume96
Issue number2
DOIs
StatePublished - Apr 15 2005

Fingerprint

Sorption
Coloring Agents
Dyes
Solubility
Polyethylene Terephthalates
Polyethylene terephthalates
Dyeing
Density (specific gravity)
poly(lactide)
Temperature

Keywords

  • Dyes
  • Miscibility
  • PLA
  • Polyesters
  • Polylactide
  • Solubility parameter

ASJC Scopus subject areas

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

Cite this

Using the solubility parameter to explain disperse dye sorption on polylactide. / Karst, David; Yang, Yiqi.

In: Journal of Applied Polymer Science, Vol. 96, No. 2, 15.04.2005, p. 416-422.

Research output: Contribution to journalArticle

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