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FT-IR Study of Poly(ether)urethanes.


ADA636826

Publication Date 2001
Personal Author Hiltz, J. A.; Szabo, J. P.
Page Count 61
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.
Keywords
  • Fourier transformation
  • Infrared spectroscopy
  • Urethanes
  • Glycols
  • Hydrogen bonds
  • 1 4-butanediol
  • 2 2-dimethyl-1 3-propanediol
  • Diethylene glycol
  • Ftir(fourier transform infrared spectroscopy)
  • Hdi(1 6-diisocyanatohexane)
  • Hydrogen bonding
  • Mdi(4 4' methelenebis(phenyl isocyanate))
  • Poly (ether) urethanes
  • Poly(ether) glycols
Source Agency
  • Non Paid ADAS
NTIS Subject Category
  • 99D - Basic & Synthetic Chemistry
  • 72B - Algebra, Analysis, Geometry, & Mathematical Logic
  • 99F - Physical & Theoretical Chemistry
Corporate Authors Defence Research Establishment Atlantic, Dartmouth (Nova Scotia).
Document Type Technical Report
Title Note Technical memorandum
NTIS Issue Number 201626
FT-IR Study of Poly(ether)urethanes.
FT-IR Study of Poly(ether)urethanes.
ADA636826

  • Fourier transformation
  • Infrared spectroscopy
  • Urethanes
  • Glycols
  • Hydrogen bonds
  • 1 4-butanediol
  • 2 2-dimethyl-1 3-propanediol
  • Diethylene glycol
  • Ftir(fourier transform infrared spectroscopy)
  • Hdi(1 6-diisocyanatohexane)
  • Hydrogen bonding
  • Mdi(4 4' methelenebis(phenyl isocyanate))
  • Poly (ether) urethanes
  • Poly(ether) glycols
  • Non Paid ADAS
  • 99D - Basic & Synthetic Chemistry
  • 72B - Algebra, Analysis, Geometry, & Mathematical Logic
  • 99F - Physical & Theoretical Chemistry
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