Small Angle Neutron Scattering from Styrene-Isoprene Block Copolymers

  • R. W. Richards
  • J. L. Thomason
Conference paper
Part of the NATO Advanced Study Institutes Series book series (ASIC, volume 94)

Abstract

A variety of styrene-isoprene block copolymers, covering a wide range in composition, have been investigated using small angle neutron scattering (SANS). Investigations of hydrogenous copolymers enabled the domain separation and packing to be obtained, it was found that spherical domains form a face centred cubic structure and cylindrical domains a hexagonally close packed arrangement. The relation between interdomain spacing and copolymer molecular weight is,
$${{d}_{{spheres}}}{\text{ }}\alpha {\text{ }}{{M}^{{O.48}}}{{d}_{{cylinders}}}{\text{ }}\alpha {\text{ }}{{M}^{{O.7}}}{{d}_{{lamellar}}}{\text{ }}\alpha {\text{ }}{{M}^{{O.52}}}{\text{ }}$$

Keywords

Styrene 

References

  1. (1).
    Helfand, E. and Vasserman, Z.R. in “Developments in Block Copolymers” editor L. Goodman. To be published by Applied Science Publishers.Google Scholar
  2. (2).
    Ruland, W., J.App.Cryst. (1971), 4, 70.CrossRefGoogle Scholar
  3. (3).
    Meier, D.J., Polym.Prepr. (1974), 15, 171.Google Scholar

Copyright information

© D. Reidel Publishing Company, Dordrecht, Holland 1982

Authors and Affiliations

  • R. W. Richards
    • 1
  • J. L. Thomason
    • 1
  1. 1.Department of Pure & Applied ChemistryUniversity of StrathclydeGlasgowUK

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