Journal of Fiber Science and Technology
Online ISSN : 2189-7654
ISSN-L : 2189-7654
一般論文
Synchrotron SAXS Studies on Lattice Structure of Spherical Micelles in Binary Mixtures of Block Copolymers and Homopolymers
Hideaki TakagiRyo HashimotoNoriyuki IgarashiShunji KishimotoKatsuhiro Yamamoto
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ジャーナル オープンアクセス

2018 年 74 巻 1 号 p. 10-16

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The lattice structures of spherical micelles in binary mixtures of polybutadiene-poly(ε-caprolactone) diblock copolymers and polybutadiene homopolymers were investigated using synchrotron small angle X-ray scattering technique. In the blend sample with a weight fraction of added homopolymer (φhomo) of 40 wt%, hexagonally packed cylinders were formed, while spherical morphologies were arrayed into the Frank-Kasper σphase at φhomo = 50 wt%. Closely packed spheres in hexagonal closely packed (HCP) and face-centered cubic (FCC) lattices were observed for the sample with φhomo = 56 and 67 wt%, respectively. It was found that the lattices of spherical micelles assembled into the following phases with increasing φhomo: Frank-Kasper σ, HCP,and FCC phases.

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© 2018 The Society of Fiber Science and Technology, Japan
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