Zobrazeno 1 - 10 of 116 pro vyhledávání: '"I. I. Tverdokhlebova"'
3
Molecular architecture and conformation of macromolecules of novel polysilanes
Autor: N. V. Pertsova, Inga A. Ronova, I. I. Tverdokhlebova, V. M. Men'shov
Publikováno v: Russian Chemical Bulletin. 47:2348-2351
Molecular-weight parameters of new silane homo- and copolymers were analyzed. For all polymers, theMw values are close ((6.0–8.6)·104), the curves of molecular weight distribution are unimodal, andMw/Mn=2−2.5. Cyclic fragments or those containin
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::684e527418f7c0558e4eecb5c7bcd59d
https://doi.org/10.1007/bf02641532
Zobrazit plný text záznamu
4
Effect of Conditions of Synthesis on the Structure of Polyphenylsilsesquioxane Macromolecules
Autor: T A Larina, I I Tverdokhlebova
Publikováno v: Russian Chemical Reviews. 44:170-175
All data published up to 1973 on the hydrodynamic properties and molecular-weight parameters of organosilicon ladder polymers are surveyed. The reasons for the formation of polyphenylsilsesquioxane macromolecules of various structures are assessed. A
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::61a7ec6bc970ba861ac5cc5f1d99eaac
https://doi.org/10.1070/rc1975v044n02abeh002254
Zobrazit plný text záznamu
5
Determination of the molecular weight of polyvinylpyrrolidone by NMR spectroscopy, ebulliometry, and gel-permeation chromatography
Autor: T. A. Sus, I. I. Tverdokhlebova, V. I. Svergun, V. P. Panov, T. M. Karaputadze, O. I. Sutkevich, Yu. É. Kirsh
Publikováno v: Pharmaceutical Chemistry Journal. 14:501-504
A considerable number of researches have been devoted to a determination of the molecular weight (MW) of polyvinylpyrrolidone (PVP) [1-8]. Data obtained by use of various methods: sedimentation [i, 6], light-scattering [2, 3, 7, 8], or osmometry [2,
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7db90e51a1a07b9b123309d5a5435303
https://doi.org/10.1007/bf00773120
Zobrazit plný text záznamu
6
Fundamental Hydrodynamic Characteristics of Polymers with Star and Comb Macromolecular Structures
Autor: I I Tverdokhlebova
Publikováno v: Russian Chemical Reviews. 46:657-670
The review considers the majority of studies published up to 1976 and dealing with the hydrodynamic properties of polymers having star and comb macromolecular structures. Methods for the estimation of the degree of branching are presented and it is s
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::455b9bfc44505120d313b1344189cb27
https://doi.org/10.1070/rc1977v046n07abeh002163
Zobrazit plný text záznamu
8
[Untitled]
Autor: V. Voŝickú, I. I. Tverdokhlebova, M. Bohdanecký
Publikováno v: Acta Polymerica. 33:699-701
The anallysis of the plots of [η] vs M for fractions of six samples of poly(phenyl-sila-sesqui-oxane) indicates a high degree of structural heterogeneity, i. e. the presence of a variety of imperfect ladder-like chains differing in the Kuhn segment
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5d3d6abca9bd7a62e96d1979fcac7c9c
https://doi.org/10.1002/actp.1982.010331205
Zobrazit plný text záznamu
9
[Untitled]
Autor: J. Kovár̂, I. I. Tverdokhlebova, M. Bohdanecký, I. I. Mamaeva, S. S.-A. Pavlova
Publikováno v: Acta Polymerica. 33:702-704
The dependence of intrinsic viscosity on the molar mass of ladder-like poly(phenyl-sila-sesqui-oxane)s containing a small amount of bifunctional units, (CH3)2SiO and Ph2SiO, is interpreted in terms of the theory developed for stiffchain polymers. App
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::949823ab7fac09bc88152baf2434ea4a
https://doi.org/10.1002/actp.1982.010331207
Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání

Omezení vyhledávání
Plný text Recenzováno Digitální knihovna AV ČR
Zdroje