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

Journal Article (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