Segregation of Block Copolymer Micelles to Surfaces and Interfaces

Kenneth R. Shull*, Karen I. Winey, Edwin L. Thomas, Edward J. Kramer

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

115 Scopus citations

Abstract

Surface and interface segregation of block copolymer micelles in a model system has been observed. The distribution of a diblock copolymer within a high molecular weight homopolymer matrix phase was determined quantitatively by forward recoil spectrometry. Cross-sectional transmission electron microscopy showed that excess copolymer segregation to the homopolymer / homopolymer and homopolymer/ vacuum interfaces was due to the preferential segregation of block copolymer micelles to these interfaces. We argue that the segregation of block copolymer micelles is a manifestation of attractive interactions between polymer brushes, and between polymer brushes and a free surface, which are important in high molecular weight homopolymer matrices.

Original languageEnglish (US)
Pages (from-to)2748-2751
Number of pages4
JournalMacromolecules
Volume24
Issue number10
DOIs
StatePublished - May 1 1991

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Segregation of Block Copolymer Micelles to Surfaces and Interfaces'. Together they form a unique fingerprint.

Cite this