Deuterium NMR study of the dynamics of self-assembled hexadecanoate monolayers on Zirconium oxide
Article Abstract:
In this investigation the measurements of (super 2) H NMR spectra of hexadecanoate molecules, perdeuterated (HDCA-D (sub 31)) and specifically deuterated at position 2 (HDCA-d (sub 2)), adsorbed on nonporous ZrO2 powder are presented. It is also shown that, within the temperature range the C2-D bonds of the attached HDCA molecules undergo reorientational motions with fast enough to affect the (super 2) H solid echo spectra.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2004
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Photoreactivity in self-assembled monolayers formed from asymmetric disulfides having para-substituted azobenzenes
Article Abstract:
The infrared reflection absorption (IR-RA) spectra indicate relatively ordered structures in the methylene parts for the C6AzSSC12 and HAzSSC12 self-assembled monolayers (SAMs). IT is observed that the substituent of the azobenzene moieties is also an important factor in regulating the photoreactivity as well as the SAM structures.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2003
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Segmental and local chain mobilities in elastomers by 13C-1H residual heteronuclear dipolar couplings
Article Abstract:
The evaluation of heteronuclear residual dipolar couplings between 13C and 1H in a series of natural rubber samples with different cross-link densities is reported. The site-selective residual dipolar couplings depend on the segmental motions and on local isomerization transitions.
Publication Name: Journal of Physical Chemistry B
Subject: Chemicals, plastics and rubber industries
ISSN: 1520-6106
Year: 2004
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