Analysis of a polyurethane elastomer using thermal 2D FT-IR

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Description

Polyurethane-polyester elastomers contain hard and soft domains which give these materials unique structural and elastic properties and lead to their use in various applications. It is desirable to characterize the molecular-level interactions giving rise to the two domains and to use this information to monitor chemical changes which take place in the polymer as a function of exposure to agents known to effect structural changes. Infrared spectroscopy has been used to study polymeric structures, including polyurethane elastomers, as the vibrational absorption bands characteristic of different functional groups are sensitive to changes in their chemical environment. One difficulty in the application ... continued below

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3 p.

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Graff, D.K.; Wrobleski, D.A.; Marsh, A.L.; Kober, E.M.; Smith, M.E. & Schoonover, J.R. July 1, 1998.

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Description

Polyurethane-polyester elastomers contain hard and soft domains which give these materials unique structural and elastic properties and lead to their use in various applications. It is desirable to characterize the molecular-level interactions giving rise to the two domains and to use this information to monitor chemical changes which take place in the polymer as a function of exposure to agents known to effect structural changes. Infrared spectroscopy has been used to study polymeric structures, including polyurethane elastomers, as the vibrational absorption bands characteristic of different functional groups are sensitive to changes in their chemical environment. One difficulty in the application of infrared spectroscopy to complex chemical systems has been the ambiguity of interpretation due to the limitations of different deconvolution techniques. Noda`s development of a 2D correlation method provides a means by which convoluted spectral information, such as that arising from the two domains of estane, can be resolved as a function of some perturbation. The authors present here a thermal 2D FT-IR study of estane.

Physical Description

3 p.

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OSTI as DE98003457

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  • American Chemical Society (ACS) meeting, Dallas, TX (United States), 26 Mar - 2 Apr 1998

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  • Other: DE98003457
  • Report No.: LA-UR--98-508
  • Report No.: CONF-980314--
  • Grant Number: W-7405-ENG-36
  • DOI: 10.2172/661441 | External Link
  • Office of Scientific & Technical Information Report Number: 661441
  • Archival Resource Key: ark:/67531/metadc708028

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  • July 1, 1998

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  • Sept. 12, 2015, 6:31 a.m.

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  • May 5, 2016, 6:18 p.m.

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Graff, D.K.; Wrobleski, D.A.; Marsh, A.L.; Kober, E.M.; Smith, M.E. & Schoonover, J.R. Analysis of a polyurethane elastomer using thermal 2D FT-IR, report, July 1, 1998; New Mexico. (digital.library.unt.edu/ark:/67531/metadc708028/: accessed October 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.