FT-IR Study of Poly(ether)urethanes

Abstract

The infrared (IR) spectra of sixteen 4,4' -methylenebis(phenyl isocyanate) (MDI) based and four 1,6-diisocyanatohexane (HDI) based poly(ether)urethane (AB)n block copolymers are presented. Differences in theIR spectra of these polymers are related to differences in the diols and polyether glycols and the ratios of reactants used to synthesize them. IR spectroscopy can distinguish between the MDI and HOI poly(ether)urethanes and identify the diols and polyether glycols used to prepare the polymers. The intensity of the amide I bands (non-hydrogen bonded and hydrogen) are found to depend on the hard segment weight fraction of the polymers and are indicative of the degree of hydrogen bonding in the polymers. The relative intensity of the C-0 stretches in the hard and soft segments of the polymers were found to increase with hard segment weight fraction.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 2001
Accession Number
ADA636826

Entities

People

  • Jeffrey P. Szabo
  • John A. Hiltz

Organizations

  • Defence Research and Development Canada

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Block Copolymers
  • Canada
  • Classification
  • Elements
  • Hydrogen
  • Information Operations
  • Infrared Spectroscopy
  • Isocyanates
  • Nova Scotia
  • Polyethylene Glycols
  • Polymers
  • Security
  • Spectra
  • Spectroscopy
  • Urethanes

Readers

  • Polymer Science and Technology
  • Spectroscopy.

Technology Areas

  • Microelectronics