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Frank-Kasper σ Phase in polybutadiene-poly(ε-caprolactone) Diblock copolymer/polybutadiene Blends

Hideaki Takagi, Ryo Hashimoto, Noriyuki Igarashi, Shunji Kishimoto, Katsuhiro Yamamoto

J Phys Condens Matter. 2017 May 24;29(20):204002.

PMID: 28338476

Abstract:

Microphase-separated structures in a polybutadiene-poly(ε-caprolactone) diblock copolymer (PB-PCL)/polybutadiene homopolymer (PB) blend were investigated by small-angle x-ray scattering (SAXS). Non-equilibrium spherical micelles were observed at temperatures ranging between 60 and 100 °C. An SAXS profile with >60 scattering peaks was recorded at 140 °C. All the peak positions were in good agreement with theoretical Frank-Kasper σ phase peak positions. Thus, these results indicate the formation of a Frank-Kasper σ phase in the PB-PCL/PB blend at 140 °C.

Chemicals Related in the Paper:

Catalog Number Product Name Structure CAS Number Price
AP9003172 Polybutadiene Polybutadiene 9003-17-2 Price
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