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653 Result(s)
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Article
Physikalisch-chemische Untersuchungen an Eisenoxydsolen, I
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Bei der Verdünnung von Eisenoxydsolen mit ihrem Ultrafiltrat bleibt ihr ζ-Potential unverändert, ihre Dissozi...
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Physikalisch-chemische Untersuchungen an Eisenoxydsolen, II. Über die Ladung bei unregelmä\igen Reihen
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Es wurden quantitativ mit der Burtonschen U-Rohr-Methode die Ladungserscheinungen verfolgt, die bei der unreg...
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Effect of molecular packing density on the crystallization rates of linear polymers from the melt
Analysis of the existing experimental data on the crystallization rates of polymers from the melt has shown that the value of the pre-exponential factor, G0, in the growth-rate equation is strongly dependent on t...
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Article
Temperature transitions in filled block copolyurethanes
For block-copolyurethanes with cristallizable and amorphous blocks the influence of different fillers on temperature transitions was investigated. It has been shown that fillers influence selectively onto tran...
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Adhäsion von polymeren Bindemitteln an Glasfaser
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Thermodynamics and kinetics of phase transitions in linear polyurethanes from hexa(methylene diisocyanate) and low molecular weight glycoles
Linear polyurethanes based on hexa(methylene diisocyanate) and oligo(ethylene glycoles) were studied using the methods of differential calorimetry, dilatometry and hot-stage microscopy. Thermodynamic analysis ...
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Lichtechtheit bei gefärbten Fasern
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Die Verwendung von Kompressionsmessungen zur Untersuchung der Zug-Dehnungs-Bezichungen und der Volumabhängigkeit der elastischen freien Energie eines polymeren Netzwerkes
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Thermoelastische Untersuchungen von Dien-Polymeren bei Dehnung und Kompression
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Lichtechtheit von Reaktiv-Farbstoffen
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Phase equilibria in water-protein-polysaccharide systems
Phase separation and thermodynamic stability of water (W) — casein (C) — neutral polysaccharide (NPS) systems have been studied. Dextrans of different molecular weights D40, D150, D500 and D2000 (10−3 M ...
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Article
Ein aufgerolltes Kapillarviskosimeter für Blut
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Article
Action of surface-active substances on biological membranes I. Effect of chemical modification of membranes on hemolysis of erythrocytes by sodium alkyl sulfates
The hemolytic action of a homologous series of sodium alkyl sulfates (C 8 toC 15) on dog and human erythrocytes was measured. The influence of trypsin, pronase and neuraminidase treatments on the lytic resistance...
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Article
Limited thermodynamic compatibility of proteins in aqueous solutions
Conditions are established for limited thermodynamic compatibility of proteins of different classes, as distinguished by Osborne, in aqueous solutions. The result obtained are in good agreement with the concep...
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Article
Crystallization of filled Nylon 6 II. Isothermal crystallization
Isothermal crystallization kinetics from the melt of nylon 6 containing various amounts of untreated glass beads and Aerosil (series GB and A) and aminosilane-treated glass beads (series GBA) was studied by DS...
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Crystallization of filled nylon 6 III. Non-isothermal crystallization
DSC data on crystallization kinetics from the melt at different cooling rates of nylon 6 containing various amonts of untreated and surface-treated fillers, were analyzed in terms of a modified Kolmogorov-Avra...
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Article
On the concentration dependence of the elasticity modulus of soybean globulin gels
The concentration dependence of the elasticity modulus (G) of gels produced by heating soybean globulins (SBG) has been investigated in the concentration range C=7.5–58.4%. The tests included constant rate loa...
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Phase equilibria in water-protein-polysaccharide systems
Phase equilibria in the ternary water-soy bean globulins-polysaccharides systems, containing various acidic and neutral polysaccharides (pectin, sodium alginate, carboxymethylcellulose, arabic gum, dextransulp...
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Article
Cationic ring-opening polymerization of 2-phenyl-1,3,6,2-trioxaphosphocane
The ring-opening polymerization of 2-phenyl-1,3,-6,2-trioxaphosphocane (4), an eight-membered cyclic phosphonite, has been investigated. Cationic initiators of PhCH2-Cl and MeOTf gave polymers, whereas anionic an...
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Article
Copolymerization of N-tert-butyl acrylamide with acrylonitrile and with methyl methacrylate
The reactivity ratios for the radical Copolymerization of N-tert-butyl acrylamide with acrylonitrile and with methyl methacrylate were determined at 60°C.