Microstructure effects on the equilibrium phase behavior of elastomer blends studied by SANS

Charles C. Han, Shinichi Sakurai, Hiroshi Jinnai, Hirokazu Hasegawa, Takeji Hashimoto

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, the basic procedure for using SANS measurements to extract the temperature and compositional dependence of the Xblend(=Xeff) parameter will be discussed. This Xblend is obtained from the scattering structure factor S(q), according to the Random-Phase Approximation, and can also be analyzed by the mean-field random copolymer theory to obtain the temperature and composition dependence of individual monomer pair interactions. In copolymer cases, especially for elastomer (diene) blends and polyolefin blends, this methodology offers a simple straightforward procedure to obtain the phase diagram. With the temperature and composition dependence of the individual pair interaction parameters, this procedure also offers the prediction of the phase diagram and free energy of mixing for polymer pairs with known molecular weight and microstructure characterization.

Original languageEnglish
Title of host publicationPolymeric Materials Science and Engineering, Proceedings of the ACS Division of Polymeric Materials Science and Engineering
PublisherPubl by ACS
Pages278-279
Number of pages2
ISBN (Print)0841226644
Publication statusPublished - 1993 Jan 1
Externally publishedYes
EventProceedings of the American Chemical Society Division of Polymeric Materials - Science and Engineering - Denver, CO, USA
Duration: 1993 Apr 181993 Apr 23

Publication series

NamePolymeric Materials Science and Engineering, Proceedings of the ACS Division of Polymeric Materials Science and Engineering
Volume68
ISSN (Print)0743-0515

Other

OtherProceedings of the American Chemical Society Division of Polymeric Materials - Science and Engineering
CityDenver, CO, USA
Period93/4/1893/4/23

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Polymers and Plastics

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