Zobrazeno 1 - 10
of 16
pro vyhledávání: '"V. N. Tsvetkov"'
Autor:
E.V. Beliaeva, A. Yu. Bilibin, S.S. Skorokhodov, Olga V. Okatova, Peter N. Lavrenko, V. N. Tsvetkov, L. N. Andreeva
Publikováno v:
European Polymer Journal. 20:817-822
Hydrodynamic and optical properties of dilute solutions of polydecamethylene-terephthaloyl-di- p -oxybenzoate (P-10-TOB), polypentamethylene-terephthaloyl-di- p -oxybenzoate (P-5-TOB) and polytetramethylene-terephthaloyl-di- p -oxybenzoate (P-4-TOB)
Autor:
V. N. Tsvetkov, H. Dautzenberg, Peter N. Lavrenko, Olga V. Okatova, I. N. Shtennikova, B. Philipp, T. V. Filippova
Publikováno v:
Acta Polymerica. 37:663-670
Die hydrodynamischen und dynamo-optischen Eigenschaften von Carboxymethylcellulose-Proben (CMC) mit Molmassen zwischen 39000 und 370000 und einem Substitutionsgrad von ca. 0,9 wurden in Cadoxen und in einem Cadoxen/Wasser-Gemisch (1:1) als Losungsmit
Publikováno v:
Measurement Techniques. 28:911-915
Autor:
V. N. Tsvetkov, I. N. Shtennikova
Publikováno v:
Macromolecules. 11:306-312
Autor:
V N Tsvetkov
Publikováno v:
Uspekhi Fizicheskih Nauk. 81:51-118
I. Apparatus 639 II. Theoretical Bases of the Maxwell Effect 642 A. Suspensions and Solutions of Rigid Particles and Macromolecules 642 B. Solutions of Chain Macromolecules 645 III. Experimental Data 650 A. Biological Polymers 650 B. Polymers with Fl
Autor:
E. V. Frisman, V. N. Tsvetkov
Publikováno v:
Journal of Polymer Science. 30:297-314
In this paper are presented new results obtained during further experimental and theoretical investigations of the form effect in the dynamic double refraction of polymers in solution. The use of the dumbbell theory of W. Kuhn for flexible chains in
Autor:
V. N. Tsvetkov
Publikováno v:
Rubber Chemistry and Technology. 36:337-350
The main feature of high molecular weight substances is the great size, chain structure and flexibility of the molecules. Investigation of macromolecules flexibility must be regarded as one of the most important tasks in the investigation of the stru
Autor:
V. N. Tsvetkov
Publikováno v:
Journal of Polymer Science. 57:727-741
The flow birefringence and the photoelastic effect in films have been used to study the molecular optical anisotropy of stereoisomers of polystyrene (PS), poly(p-methyl styrene) (PMS), poly(methyl methacrylate) (PMMA), and poly-(n-butyl methacrylate)
Autor:
V N Tsvetkov
Publikováno v:
Russian Chemical Reviews. 38:755-773
The problem of the extent to which the hydrodynamic and optical behaviour of chain molecules in solutions can be used for the observation and the quantitative assessment of their rigidity and of the internal ordering of their structures is examined.
Publikováno v:
Soviet Powder Metallurgy and Metal Ceramics. 18:582-584
In this article are presented the results of a statistical investigation into the variation of the mechanical characteristics of cermets (AI203--Mo and AIN-Mo~ reinforced with zirconla and mullite whiskers with test temperature [i]. Composite materia