Microphase-separated stmcture of polyurethane elastoniers under external stimuli

So Kugumiya, Ken Kojio, Mutsuhisa Furukawa

Research output: Contribution to conferencePaperpeer-review


Polyurethane elastomers (PUEs) were prepared with poly (oxytetramethylene) glycol (PTMG), 4,4'-diphenyl methane diisocyanate (MDI) and 1,4-butanediol (BD) by a prepolymer method. Microphase separation of the PUE was investigated using Fourier transform infrared (FT-IR) spectroscopy and differential scanning calorimetry (DSC). PUE was uniaxially deformed up to various strains. Deformation of microphase-separated structure was observed under the elongation using atomic force microscopy (AFM). AFM observation without elongation revealed the microphase-separated structure, which is composed of the hard segment domains surrounded by soft segment matrix. At lower elongation (εe < 1), the distance between the hard segment domains became larger along the elongation direction. With increasing elongation, the hard segment domains were deformed and oriented.

Original languageEnglish
Number of pages1
Publication statusPublished - Dec 1 2005
Externally publishedYes
Event54th SPSJ Annual Meeting 2005 - Yokohama, Japan
Duration: May 25 2005May 27 2005


Other54th SPSJ Annual Meeting 2005

All Science Journal Classification (ASJC) codes

  • Engineering(all)


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