Hostname: page-component-78c5997874-4rdpn Total loading time: 0 Render date: 2024-11-19T12:46:55.780Z Has data issue: false hasContentIssue false
  • English
  • Français

Rheology of Phase Separated Block Copolymer Melts

Published online by Cambridge University Press:  21 February 2011

H. Henning Winter  and
Faith A. Morrison
H. Henning Winter
Affiliation:
University of Massachusetts, Dept of Chemical Eng., Amherst, MA 01003, USA
Faith A. Morrison
Affiliation:
ESPCI, Laboratoire PCSM, 10 rue Vauquelin, F-75231 Paris Cedex 05, France
Get access

Extract

Flow can transfer the microphase separated morphology of block copolymers into a state of global order. For tri-block copolymers with cylindrical domains, this has been demonstrated by Folkes et al. (1973) and Hadziioannou et al. (1979). who established the existence of ‘single crystals’ of hexagonally ordered cylinders with uniform director throughout a sheared sample. The director is aligned with the shear direction. In this study, we investigate the flow induced ordering of cylindrical domain structure at increasing levels of shear.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 177: Symposium V – Macromolecular Liquids , 1989 , 245
Copyright
Copyright © Materials Research Society 1990

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Folkes, M.J., Keller, A. and Scalisi, F.P., Koll. Zeits. Zeits. Polym. 251, 1 (1973).Google Scholar
Hadziioannou, G., Mathis, A. and Skoulios, A., Colloid Polym. Sci., 257, 136 (1979).Google Scholar
Morrison, F., and Winter, H.H., Macromolecules, 22, 3533–3540 (1989).Google Scholar
Morrison, F., Winter, H.H., Barnes, J., and Gronski, W., ‘The effect of unidirectional shear on the structure of triblock copolymers. II.Polystyrene-polyisoprenepolystyrene’, Macromolecules, 1988, under review.Google Scholar