Time-dependent reactive coupling at polymer-polymer interfaces

Glenn H. Fredrickson, Scott T. Milner

Research output: Contribution to journalArticle

104 Scopus citations

Abstract

Using recently calculated rate coefficients for reactive coupling of chains at polymer-polymer interfaces, we describe the diffusion-controlled growth of diblock copolymer at the interface between dissimilar molten homopolymer films. The growth exhibits several regimes, successively controlled by (1) the quasilocal reaction rate near the interface, (2) center-of-mass diffusion of reactive homopolymer to the interface, and (3) the diffusion barrier presented by the growing copolymer layer. Our results can be tested by time-dependent measurements of the copolymer coverage or concentration of reacted coupling groups.

Original languageEnglish (US)
Pages (from-to)7386-7390
Number of pages5
JournalMacromolecules
Volume29
Issue number23
DOIs
StatePublished - Nov 4 1996

All Science Journal Classification (ASJC) codes

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

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