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Articles 1 - 3 of 3
Full-Text Articles in Biomedical Engineering and Bioengineering
Z-Protected Glutamic Acid-Based Biodegradable Thermoplastic And Thermosetting Polyesters: Synthesis And Characterization, R M. Tadros, Hossein Noureddini, Delmar C. Timm
Z-Protected Glutamic Acid-Based Biodegradable Thermoplastic And Thermosetting Polyesters: Synthesis And Characterization, R M. Tadros, Hossein Noureddini, Delmar C. Timm
Papers in Biomaterials
Biodegradable polymers were formed from N-benzyloxycarbonyl-L-glutamic acid with the comono-mers ethylene glycol, diglycidyl ether of 1,4-butanediol, and diglycidyl ether of bisphenol A. The three polymers were a linear and a rosslinked heterochain polyester and a crosslinked polyester that contained aromatic units within its network chains. The thermoplastic resin and the soluble fractions for the thermo-setting resins were characterized by gel permeation chromatography. Conversions for carboxylic acid were determined by titrations. A quality, 22,000 molecular weight thermoplastic resin was formed. The two ther-mosets were cured past their gel points. Gelation analysis revealed that the relative rate constants for the sequential oxirane/ …
Genetic Engineering Of Wood Color In Plants, Vincent Lee C. Chiang, Chung-Jui Tsai, Gopi K. Podila
Genetic Engineering Of Wood Color In Plants, Vincent Lee C. Chiang, Chung-Jui Tsai, Gopi K. Podila
Michigan Tech Patents
The invention relates to genetically engineering the wood color of woody plants by incorporation of the lignin pathway gene O-methyltransferase into the genome of the plants.
Liquid-Phase Catalytic Oxidation Of Unsaturated Fatty Acids , Hossein Noureddini, M Kanabur
Liquid-Phase Catalytic Oxidation Of Unsaturated Fatty Acids , Hossein Noureddini, M Kanabur
Papers in Biomaterials
Liquid-phase catalytic oxidation of oleic acid with hydrogen peroxide in the presence of various transition metal/metal oxide catalysts was studied in a batch autoclave reactor. Azelaic and pelargonic acids are the major reaction products. Tungsten and tantalum and their oxides in supported and unsupported forms were used as catalysts. Alumina pellets and Kieselguhr powder were used as supports for the catalysts. Tungsten, tantalum, molybdenum, zirconium, and niobium were also examined as catalysts. Tertiary butanol was used as solvent. Experimental results concluded that tungsten and tungstic oxide are more suitable catalysts in terms of their activity and selectivity. The rate of …