Controlling morphology in cocontinuous polymer blends

Joel R. Bell, Carlos R. Lopez-Barron, Chris Macosko

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

Abstract

Cocontinuous morphologies, distinguished by the mutual interpenetration of two polymer phases, allow for enhanced mechanical properties, static charge dissipation, and barrier properties. Compatibilizers, e.g. block copolymers (bcp), are often added to hinder phase coarsening in blends of immiscible polymers and can improve adhesion at interfaces. We have studied the effect of bcp on the cocontinuous morphology of polystyrene (PS)/polyethylene (PE) and PS/poly (methylmethacrylate) PMMA model blends using scanning electron microscopy (SEM) with image analysis, 3D synchrotron x-ray microtomography, mercury porosimetry, solvent extraction, and rheology. We have shown that an optimal bcp suppresses coarsening in these blends and widens the range of cocontinuity.

Original languageEnglish (US)
Title of host publicationSociety of Plastics Engineers Annual Technical Conference
Subtitle of host publicationPlastics Encounter at ANTEC 2007, Conference Proceedings
Pages328-331
Number of pages4
StatePublished - Sep 28 2007
EventSociety of Plastics Engineers Annual Technical Conference: Plastics Encounter at ANTEC 2007 - Cincinnati, OH, United States
Duration: May 6 2007May 11 2007

Publication series

NameAnnual Technical Conference - ANTEC, Conference Proceedings
Volume1

Other

OtherSociety of Plastics Engineers Annual Technical Conference: Plastics Encounter at ANTEC 2007
CountryUnited States
CityCincinnati, OH
Period5/6/075/11/07

Keywords

  • Block copolymer
  • Cocontinuous
  • Image analysis
  • Polymer blends

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