Search
Now showing items 1-10 of 75
Synthesis and electrochemical study of Pd- and Pt- based nanostructured materials
(2011)
We are currently facing climate change and global warming effects due to the emission of
greenhouse gases from our existing energy sources. Proton exchange membrane fuel cells are
one of the most efficient alternatives ...
The photochemistry of methoxy-substituted poly(acrylophenones)
(1995)
Poly(p-methoxyacrylophenone) (PMAP),
poly{3,4-dimethoxyacrylophenone) (P34DMAP) and
poly(3,5-dimethoxyacrylophenone) (P35DMAP) were exposed in the
form of dilute solutions and thin films to long-wave UV
radiation (see ...
Photo-induced reactions of a photochromic fulgide in polymer matrices and in solvents
(1995)
A photochromic fulgide, coimnonly known as
Aberchrome 540, is amber in its ring-opened E (see document) dimethyl -3- furylethylidene) (isopropylidene) succinic
anhydride] and z (see document) furylethylidene) (isopropylidene) ...
NMR study of aqueous tetraalkylammonium silicates
(1994)
Silicon-29 nuclear magnetic resonance (NMR) spectroscopy has been
used to investigate the equilibrium distribution and kinetics of silicate oligomers
in aqueous tetraalkylammonium silicate solutions. Certain tetraalkyl ...
NMR studies of lignin models, derivatives and bleaching effluents
(1995)
NMR problems related to assignment techniques and relaxation restrict the use of
NMR in the structural analysis of lignin. These problems have been addressed in three
practical studies in this thesis involving a lignin ...
Structure and mobility of lignin in relation to pulp washing and bleaching
(1997)
The roles of molecular size and structure were investigated
in relation to the extent of peroxide bleaching and lignin adsorption on pulp. Structural analysis of components from effluents generated by peroxide bleaching ...
Hydrolysis of silicone polymers in aqueous systems
(2001)
Silicon-29 and 'H NMR spectroscopy were used to investigate the hydrolysis
of methyl silicones in a variety of aqueous environments. Dilute acid, dilute base and
one or more of the dissolved constituents of blood plasma ...
Reactivity study of the palladium cross-coupling synthesis of enediynes
(1999)
A reactivity study looking at various aspects of the palladium catalyzed (Sonogashira)
reaction for die synthesis of enediynes was performed. Alkynes were coupled to 1,2-
dichloro-, 1,2-dibromo- and 1,2-diiodobenzene. ...