Morphology and rheology of cocontinuous blends

Carlos R Lopez Barron, Chris Macosko

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

3 Scopus citations

Abstract

The time evolution of the elastic modulus and the geometrical parameters of interfaces in a 50/50 PS/SAN cocontinuous blend are analyzed during annealing. The interfaces were tracked via LSCM (laser scanning confocal microscopy) coupled with 3D-image analysis. The evolution of G′ and the geometrical variables can be described with power laws. Experiments reveal that interfaces relax faster (dQ/dt∝Q2.4) than predicted by the Doi-Ohta theory (dQ/dt∝Q2) [1]. Rheological behavior is a result of interfacial relaxation which includes interface expansion and curvature relaxation.

Original languageEnglish (US)
Title of host publicationThe XVth International Congress on Rheology - The Society of Rheology 80th Annual Meeting
Pages523-525
Number of pages3
DOIs
StatePublished - 2008
Event15th International Congress on Rheology - Monterey, CA, United States
Duration: Aug 3 2008Aug 8 2008

Publication series

NameAIP Conference Proceedings
Volume1027
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other15th International Congress on Rheology
Country/TerritoryUnited States
CityMonterey, CA
Period8/3/088/8/08

Keywords

  • Cocontinuous blends
  • Polystyrene-SAN blends
  • Rheology-mophology relationship

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