Exchange kinetics between the adsorbed state and free solution. Poly(methyl methacrylate) in carbon tetrachloride

Harry E. Johnson, Steve Granick

Research output: Contribution to journalArticlepeer-review

Abstract

Adsorption and desorption rates at high surface coverage are reported for poly(methyl methacrylate) (PMMA) adsorbed from dilute carbon tetrachloride solution (1 mg·mL-1) onto a single silicon oxide substrate at 30.0°C. The method of measurement was infrared spectroscopy in attenuated total reflection. The polymer fractions studied were deuterio (d-PMMA) and protio (h-PMMA) with matched degrees of polymerization Nw ≈ 570 and 640, respectively. No adsorption isotope effect was expected, nor noted experimentally. The rapid adsorption of d-PMMA onto the initially bare surface was followed for 1 h, at which time the ambient solution was changed either to a solution of h-PMMA or to pure CCl4.

Original languageEnglish (US)
Pages (from-to)3367-3374
Number of pages8
JournalMacromolecules
Volume23
Issue number13
StatePublished - Jan 1 1990

ASJC Scopus subject areas

  • Materials Chemistry

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