Anomalous small-angle x-ray scattering study on aggregation of a block copolymer in a selective solvent

Megumi Sakou, Atsuro Takechi, Masashi Handa, Yuya Shinohara, Yoshiyuki Amemiya, Hiroyasu Masunaga, Hiroki Ogawa, Naoto Yagi, Kazuo Sakurai, Isamu Akiba

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6 Scopus citations

Abstract

Anomalous small-angle X-ray Scattering (ASAXS) analysis for poly(4-vinylphenol)-b-poly(4-bromostyrene) (PVPh-b-PBrS) in N,N,N',N'- tetramethyl ethylene diamine (TMEDA) solution was examined. The ASAXS measurements, executed at three different energies, provided the separation of the scattering of the Br atoms from whole system. The energy-dependent term in the SAXS profile, which is corresponding to the form factor of PBrS domain, sufficiently agree with the SAXS profile calculated for hard sphere with 41 nm radius. Therefore, the PBrS chains assemble into spherical core with 41 nm radius in TMEDA solution.

Original languageEnglish
Article number012022
JournalJournal of Physics: Conference Series
Volume272
Issue number1
DOIs
StatePublished - 2011
Externally publishedYes

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