One-pack cross-linkable waterborne methyl ethyl ketoxime-blocked polyurethane/clay nanocomposite dispersions

Sankaraiah Subramani, Min Lee Jung, Hyun Kim Jung, Woo Cheong In

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

One-pack cross-linkable nanocomposites of waterborne methyl ethyl ketoxime (MEKO)-blocked aromatic polyurethane dispersion (BPUD) reinforced with organoclay (quaternary ammonium salt of Cloisite 25A) were synthesized by the acetone process using 4,4′-methylenedi-p-phenyl diisocyanate (MDI), poly(tetramethylene) glycol (PTMG), dimethylol propionic acid (DMPA), and methyl ethyl ketoxime (MEKO). Particle size, viscosity, and storage stability of these nanocomposites were investigated. TEM and XRD studies confirmed that the silicate layers of organophilic clay were exfoliated and intercalated at a nanometer-scale in the BPUD matrix.

Original languageEnglish
Pages (from-to)418-426
Number of pages9
JournalMacromolecular Research
Volume13
Issue number5
DOIs
Publication statusPublished - 2005 Oct

All Science Journal Classification (ASJC) codes

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

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