PMID: 11909099Mar 23, 2002Paper

Chain segment order in ultrathin polymer films: a deuterium NMR study

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
S V PrimakE K Mann

Abstract

The orientational order of monomerically thin films of polydimethylsiloxane melt deposited on the surfaces of cylindrical pores is investigated in this paper by solid-state deuterium nuclear magnetic resonance. Spectra demonstrate substantial orientation of the methyl groups by the surface. The quadrupolar splitting of the oriented film component saturates below one monomer layer, but decreases stepwise for thicker films. Comparisons of experimental and simulated spectra suggest a flat chain conformation in the first polymer monolayer.

References

Apr 1, 1993·Solid State Nuclear Magnetic Resonance·A S Ulrich, A Watts
Feb 15, 1990·Physical Review. a·J DaillantL Leger
Sep 16, 2000·Physical Review Letters·B ZalarD Finotello
Oct 4, 2000·Physical Review Letters·S RivillonB Deloche

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Citations

May 23, 2008·The European Physical Journal. E, Soft Matter·S Ayalur-KarunakaranS Stapf
Feb 14, 2006·The Journal of Chemical Physics·Burak Metin, Frank D Blum
Feb 7, 2008·Langmuir : the ACS Journal of Surfaces and Colloids·Macduff O OkuomFrank D Blum
Jul 17, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·S Ayalur-KarunakaranSiegfried Stapf

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