Results 11 to 20 of about 1,678,407 (282)
Spruce (Piceaabies) wood hemicelluloses have been obtained by the noncatalytic and catalytic oxidative delignification in the acetic acid-water-hydrogen peroxide medium in a processing time of 3–4 h and temperatures of 90–100 °C. In the catalytic process,
Valentina S. Borovkova +12 more
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Molecular Weight Distribution of Proteins Synthesized in Single, Identified Neurons of Aplysia [PDF]
Parietovisceral ganglia from Aplysia californica were incubated in medium containing leucine-3H. Single, identified nerve cell somas were isolated from the ganglia, and their proteins extracted and separated by electrophoresis on 5% SDS-polyacrylamide ...
Wilson, David L.
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Die Fraktionierung von Polymethylmethacrylaten nach dem Molekulargewicht durch Gegenstromverteilung
A polydisperse sample of polymethylmethacrylate with an average molecular weight of 168000 has been fractionated by countercurrent distribution into fractions of different molecular weight using a phase pair prepared from acetone, n-hexane and water.
P. von Tavel, J. Wälchli, H. Rüfenacht
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Physicochemical Properties of ACE Inhibitory Peptides from Jujube Kernel by Enzymatic Method
In this study, the defatted jujube kernel residue was extracted by alkali solubilization and acid seperation method to obtain jujube kernel protein, and the angiotensin converting enzyme (ACE) inhibitory peptide was obtained by enzymatic hydrolysis of ...
Liming TAN +4 more
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Linear Rheological Response of a Series of Densely Branched Brush Polymers [PDF]
We have examined the linear rheological responses of a series of welldefined, dense, regularly branched brush polymers. These narrow molecular weight distribution brush polymers had polynorobornene backbones with degrees of polymerization (DP) of 200 ...
Grubbs, Robert H. +4 more
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The main topics related to the use of dual-site catalysts in the production of polymers with broad molecular weight distribution are reviewed. The polymerization using dual-site catalysts is more economical and allows to produce a higher quality product ...
João H. Z. dos Santos +3 more
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A Comparative Study between FRP and ATRP of Styrene by Monte Carlo Simulation: Effect of Free Radical Mobility [PDF]
Styrene polymerization through FRP and ATRP methods was carried out at 110oC, while in-depth studies were performed by Monte Carlo simulation.The changes in monomer conversion, initiator concentration, average molecular weight, and polydispersity index ...
M. Najafi +3 more
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Using the protein of Cucumaria frondosa visceral mass as raw material, antio-xidant peptides were prepared by enzymatic hydrolysis with complex protease.
Yunlong GAO, Menghao XU, Xiangzhong ZHAO
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Rheological measurement of molecular weight distribution of polymers
This paper has described a method to obtain the molecular weight distribution (MWD) of polymeric materials from their rheological data. The method has been developed for linear polymers with log normal molecular weight distribution.
Khak Maryam, Ramazani Ahmad
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The application of HP-GFC chromatographic method for the analysis of oligosaccharides in bioactive complexes [PDF]
The aim of this work was to optimize a GFC method for the analysis of bioactive metal (Cu, Co and Fe) complexes with olygosaccharides (dextran and pullulan). Bioactive metal complexes with olygosaccharides were synthesized by original procedure.
Savić Ivan +3 more
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