Journal article
NMR measurement of the surface dynamics of poly(dimethylsiloxane) adsorbed on silica gel
Macromolecular symposia., Vol.86(1), pp.171-180
09/1994
DOI: 10.1002/masy.19940860114
Abstract
CPMAS‐DD 13C NMR spectroscopy was used to examine the mobility of poly(dimethylsiloxane) adsorbed on silica gel (PDMS/SiO2) at submonolayer coverages. The spin‐lattice relaxation time in the rotating frame (T1ρH) decreased linearly with increasing loading. This is consistent with a decrease in the mobility of the polymer segments as the loading is increased. The decrease in mobility results from interpolymer interference. We propose a model that explains these results in terms of a surface intrinsic viscosity that incorporates the polymer‐polymer interactions on the surface.
Details
- Title: Subtitle
- NMR measurement of the surface dynamics of poly(dimethylsiloxane) adsorbed on silica gel
- Creators
- David G RethwischJohn van AlstenCecil R Dybowski
- Resource Type
- Journal article
- Publication Details
- Macromolecular symposia., Vol.86(1), pp.171-180
- Publisher
- Hüthig & Wepf Verlag; Basel
- DOI
- 10.1002/masy.19940860114
- ISSN
- 1022-1360
- eISSN
- 1521-3900
- Number of pages
- 10
- Language
- English
- Date published
- 09/1994
- Academic Unit
- Chemical and Biochemical Engineering
- Record Identifier
- 9984003476102771
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