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Orientation Studies of Polyurethane Block Polymers

  • Robert W. Seymour
  • Gerald M. Estes
  • S. L. Cooper
Part of the Polymer Science and Technology book series (POLS, volume 4)

Abstract

Recent results from orientation studies on polyurethane block polymers are presented. Birefringence measurements are of limited value in the study of multiphase systems because of the importance of non-orientational sources of birefringence. However, both conventional and differential infrared dichroism are very useful methods. The application of these techniques in the study of orientation mechanisms, orientation hysteresis, and time dependent orientation processes are discussed and illustrated with pertinent results.

Keywords

Orientation Function Hard Segment Soft Segment Positive Orientation Residual Orientation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1974

Authors and Affiliations

  • Robert W. Seymour
    • 1
  • Gerald M. Estes
    • 1
  • S. L. Cooper
    • 1
  1. 1.Department of Chemical EngineeringUniversity of WisconsinMadisonUSA

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