Synthesis, characterization, and properties of ethoxylated azo dyes

Kaihua Shen, Dong Hoon Choi, Zongshi Li

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The nonionic surfactant properties of ethoxylated azo dyes, such as cloud point and surface tension have been investigated. The synthesized ethoxylated azo dyes could dye polyester fabric without any special pre-treatment. When the average number of ethylene oxide (EO) in the ethoxylated azo dye reached 6, its fixation could exceed 90% from the thermosol dyeing process. The average degree of condensation of ethylene glycol in the chain was interrelated with the dyeing results and did not affect on the maximum absorption wavelength (λmax) of the polyoxyethylene dye. When the average length of polyoxyethylene chain decreased, the molecular weight of dyes became smaller and the fixation of dyes was improved.

Original languageEnglish
Pages (from-to)32-37
Number of pages6
JournalFibers and Polymers
Volume4
Issue number1
DOIs
Publication statusPublished - 2003

Keywords

  • Azo
  • Cloud point
  • Ethoxylated reaction
  • Surface tension
  • Thermosol dyeing process

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Polymers and Plastics

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