Now showing items 51-60 of 116
Thermal decomposition and gasification of cellulose and wood wastes / by Peter Fong. --
The thermal decomposition of jack pine bark, white birch sawdust and cellulose has been studied by both isothermal weight-change determinations and dynamic thermogravimetry mostly in inert atmospheres up to 900°C. Gaseous ...
Structure and mobility of lignin in relation to pulp washing and bleaching
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 ...
Temperature effects on the far-infrared absorption spectra of simple organic molecules / by C. K. McLellan
The recent development of interferometers operating in the far-infrared frequency region, coupled with the use of modern high-speed digital computers for processing the interferometric data, has made this frequency ...
Copolymerization of pretreated kraft lignin and acrylic acid to produce flocculants for suspension and solution systems
The presence of dyes in the wastewater of textile industry poses a number of environmental concerns due to their toxic nature and the removal of dyes from the wastewater is a major challenge nowadays. Synthetic polymers ...
Molecular and intramolecular relaxation processes of small molecules / by Bernard Chi-Cheung Chan. --
The dielectric relaxation method was used to determine the activation parameters of some ethane derivatives and simple amides. A General Radio 1615-A capacitance bridge was utilized to obtain the energy barriers of the ...
Studies in Group VIII metal-phosphine-tetrahydroborate chemistry / by Chi-Tat Kan. --
Co(I) and nickel(T) complexes containing both bidentate and monodentate tetrahydroborate have been prepared from the reductions of divalent metal compounds in the presence of triphenylphosphine with ethanolic sodium ...
Reactions of Ni (II) with sodium cyanotrihydroborate in presence of some bidentate phosphines / by Mohammed Nazrul Islam Khan. --
Cyanotrihydroborate-transiton metal ion chemistry has been reviewed.
Some dielectric studies / by Brian James Cooke
Two methods of approach are current in the literature for the interpretation of dielectric relaxation. One is that due to Debye which assumes that the relaxation process has its origin in the retardation of molecular ...
Lignin modification to produce hydrophobic products
Kraft lignin is not widely utilized for industrial applications. In this MSc work, kraft lignin was modified by grafting hydrophobic groups to produce hydrophobic materials. The main objective was to study the grafting of ...