NMR Studies of Polymers at Interfaces
Abstract
A review of NMR studies done in our laboratory on the dynamics of polymers adsorbed at interfaces is made. Of specific interest is polymers adsorbed on solid substrates at the (1) solution, (2) gas, and (3) polymer interface. In solution we have used deuterium NMR relaxation times to show the enhanced motional mobility of styrene segments of vinylpyridine-styrene block copolymers, adsorbed on silica, and swollen with toluene. At the gas interface, we show how the presence of the interface can turn a rubbery polymer into a glassy one with carbon-13 studies of poly(iso-propyl acrylate). At the polymer interface, we show how the overpolymerization of bismaleimide slows the dynamics of the interfacial layer of silane coupling agent. Polymers, Interfaces, NMR, Surfaces.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 08, 1994
- Accession Number
- ADA281570
Entities
People
- Frank D. Blum