Humidity-dependent dynamic infrared linear dichroism study of a poly(ester urethane).


Journal Article

Fourier transform infrared techniques, infrared difference spectroscopy and dynamic infrared linear dichroism (DIRLD), have been utilized to explore the effects of humidity and water absorption on a poly(ester urethane). An environmental infrared microbalance cell was used to measure the infrared spectra as a function of humidity and accompanying weight change for the absorption-desorption processes. The infrared difference data indicate that exposure to humidity affects the hydrogen-bonding interactions in the polymer. Dynamic infrared linear dichroism studies in tensile deformation mode as a function of humidity demonstrate how changes in water content affect the orientational response of functional groups. Complex behavior as a function of humidity for functional groups involved in hydrogen bonding indicates that water absorbed by the polymer affects the micro-environments near these functional groups.

Full Text

Duke Authors

Cited Authors

  • Schoonover, JR; Steckle, WP; Cox, JD; Johnston, CT; Wang, Y; Gillikin, AM; Palmer, RA

Published Date

  • May 2007

Published In

Volume / Issue

  • 67 / 1

Start / End Page

  • 208 - 213

PubMed ID

  • 16950649

Pubmed Central ID

  • 16950649

Electronic International Standard Serial Number (EISSN)

  • 1873-3557

International Standard Serial Number (ISSN)

  • 1386-1425

Digital Object Identifier (DOI)

  • 10.1016/j.saa.2006.07.015


  • eng