Why gradient copolymers make better compatibilizers of immiscible polymer blends than block copolymers: Determining critical micelle concentrations of copolymer in homopolymer

Robert W. Sandoval, Daniel E. Williams, Golnar Doroudian, Christopher L H Wong, Jungki Kim, Connie B. Roth, John M Torkelson

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

Abstract

A fluorescence technique is used to determine critical micelle concentrations (CMCs) of styrene-containing block and gradient copolymers dispersed within a homopolymer. Block copolymer composition and molecular weight are varied to determine what factors impact the CMC. Gradient copolymers are shown to have higher CMCs than block copolymers due to the gradient in comonomer composition along the copolymer backbone. Gradient copolymers can be more effective as compatibilizing agents, as they are less likely to be trapped within micelles upon melt processing.

Original languageEnglish (US)
Title of host publication67th Annual Technical Conference of the Society of Plastics Engineers 2009, ANTEC 2009
Pages2651-2656
Number of pages6
Volume5
StatePublished - Nov 25 2009
Event67th Annual Technical Conference of the Society of Plastics Engineers 2009, ANTEC 2009 - Chicago, IL, United States
Duration: Jun 22 2009Jun 24 2009

Other

Other67th Annual Technical Conference of the Society of Plastics Engineers 2009, ANTEC 2009
CountryUnited States
CityChicago, IL
Period6/22/096/24/09

Keywords

  • Block copolymers
  • Compatibilizers
  • Fluorescence
  • Gradient copolymers
  • Micelles

ASJC Scopus subject areas

  • Polymers and Plastics
  • Chemical Engineering(all)

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    Sandoval, R. W., Williams, D. E., Doroudian, G., Wong, C. L. H., Kim, J., Roth, C. B., & Torkelson, J. M. (2009). Why gradient copolymers make better compatibilizers of immiscible polymer blends than block copolymers: Determining critical micelle concentrations of copolymer in homopolymer. In 67th Annual Technical Conference of the Society of Plastics Engineers 2009, ANTEC 2009 (Vol. 5, pp. 2651-2656)