Micro-phase Separation via Spinodal-like Decomposition in Hexamethylynediisocyanate (HDI)-polyurea

  • Amit S. Kulkarni
  • Gregory Beaucage
  • Garth L. Wilkes
  • Sudipto Das
  • Iskander Yilgor
Article

Abstract

Micro-phase separation in hexamethylynediisocyanate-polyurea was studied using small-angle X-ray scattering and infrared absorption. It was found that phase separation in this system followed spinodal-like decomposition on a 3–4 nm size scale with phase separation occuring on a time scale of days.

Keywords

Micro-phase separation Spinodal decompostion Polyurea Small-angle X-ray scattering 

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Copyright information

© Springer Science+Business Media, LLC 2012

Authors and Affiliations

  • Amit S. Kulkarni
    • 1
  • Gregory Beaucage
    • 2
  • Garth L. Wilkes
    • 3
  • Sudipto Das
    • 3
  • Iskander Yilgor
    • 4
  1. 1.SABIC Innovative PlasticsMt. VernonUSA
  2. 2.Department of Chemical and Materials EngineeringUniversity of CincinnatiCincinnatiUSA
  3. 3.Department of Chemical EngineeringVirginia Polytechnic Institute and State UniversityBlacksburgUSA
  4. 4.Department of ChemistryKóc UniversityIstanbulTurkey

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