منابع مشابه
Saponification of Wheat Straw-g- Polyacrylonitrile
Wheat straw-g-polyacrylonitrile (PAN), containing 40% PAN, was saponified with sodium hydroxide and isolated under three sets ofsaponification and work-up conditions. Each reaction mixture was separated into a water-soluble and a water-insoluble fraction, which were individually analyzed for percentages (by weight) of synthetic polymer (saponified PAN), cellulose, hemicellulose, and lignin. Wat...
متن کاملDouble clicking for site-specific coupling of multiple enzymes.
A method to site-specifically couple multiple enzymes is reported. The approach is based on the site-specific incorporation of a clickable non-natural amino acid into enzymes and two compatible click reactions. The multi-enzyme reaction system exhibited enhanced catalytic efficiency over the respective free enzymes.
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chapter i provides an overview of structural linguistics and touches upon the saussurean dichotomies with the final goal of exploring their relevance to the stylistic studies of literature. to provide evidence for the singificance of the study, chapter ii deals with the controversial issue of linguistics and literature, and presents opposing views which, at the same time, have been central to t...
15 صفحه اولMultiwall Carbon Nanotube Reinforcement of Polyacrylonitrile Fibers
Aligning multiwall carbon nanotubes (MWNTs) with the direction of load is desirable for maximizing tensile reinforcement in composites. This has been accomplished by spinning composite fibers containing MWNTs[1]. The shear and elongational flow fields inherent to fiber processing cause the MWNTs to align with the fiber axis. Efficient stress transfer from the matrix to the MWNTs is also a cruci...
متن کاملStarch - Polyacrylonitrile Copolymers . Properties of Hydrogels
Gel sheets prepared from high-viscosity aqueous dispersions of hydrolyzed starch-polyacrylonitrile graft copolymers absorb several hundred times their own weight in water. Viscosity of the disperSiOns can be . reduced to low levels by mechanical shear before the films are cast to give solutions which yield water'soluble .films. These soluble films can be readily cross-linked to again form highl...
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ژورنال
عنوان ژورنال: European Journal of Biochemistry
سال: 1976
ISSN: 0014-2956,1432-1033
DOI: 10.1111/j.1432-1033.1976.tb10008.x