Zobrazeno 1 - 10
of 273
pro vyhledávání: '"G.Ye. Zaikov"'
Publikováno v:
Polymer Science U.S.S.R.. 33:247-252
Change in the mean viscous MM of polystyrene when processed on a disc extruder in a mixture with PE of varied composition has been studied. The results are analysed with reference to the rheological properties of PE-PS blends and the character of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b14501416cef4f5e08e2082e542870c4
https://doi.org/10.1016/0032-3950(91)90187-u
https://doi.org/10.1016/0032-3950(91)90187-u
Publikováno v:
Polymer Science U.S.S.R.. 33:843-861
Oriented PE and PP samples have been studied on exposure to mechanical, temperature and oxidative factors. The complex nature of the change in molecular mobility on static loading of oriented polyolefins has been established. Deformation, degree of s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ca44968f46d15a390becd4d36dd1fc2
https://doi.org/10.1016/0032-3950(91)90149-k
https://doi.org/10.1016/0032-3950(91)90149-k
Autor:
G.Ye. Zaikov, A. L. Iordanskii, A.V. Trezvova, O.G. Fortunatov, Ye.V. Zolotova, L.P. Razumovskii
Publikováno v:
Polymer Science U.S.S.R.. 33:902-909
The authors have investigated the influence of the rigid block fraction, the conditions of synthesis and the modes of formation of films of segmented Gemotan-T polyether urethane on the structural and sorption-diffusion properties. From the results o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::50d7cc358f9471f9705cb2eb12206667
https://doi.org/10.1016/0032-3950(91)90156-k
https://doi.org/10.1016/0032-3950(91)90156-k
Publikováno v:
Polymer Science U.S.S.R.. 23:1666-1674
A study has been made of the influence of external loads on the rate of ozone oxidation of oriented high- and low-density polyethylene specimens, under regimes of constant stress and strain. It is shown that tensile stress has an accelerating effect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::224c769848f005d731c0297ffe6e2d69
https://doi.org/10.1016/0032-3950(81)90403-2
https://doi.org/10.1016/0032-3950(81)90403-2
Publikováno v:
Polymer Science U.S.S.R.. 30:177-182
The variation of mechanical, structural and dynamic parameters and MD of oriented PP were examined during ozone oxidation. It is assumed that the improvement of mechanical properties at the initial stage of oxidation is due to the crystallization of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38f5b475703558e30c7d3829a398bf97
https://doi.org/10.1016/0032-3950(88)90272-9
https://doi.org/10.1016/0032-3950(88)90272-9
Publikováno v:
Polymer Science U.S.S.R.. 21:1843-1846
Using isotope H → D exchange coefficients of adsorption bands of ND groups were determined at 2480 cm−1 and of crystalline NH groups at 3300 cm−1. Extinction coefficients obtained enable the crystallinity of polycaproamide films to be calculate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cbd0cb4d64e11c419fc7be205cfa8865
https://doi.org/10.1016/0032-3950(79)90370-8
https://doi.org/10.1016/0032-3950(79)90370-8
Publikováno v:
Polymer Science U.S.S.R.. 27:1948-1956
Some features of the sorption and dissolution of low molecular weight additive in a polymer are discussed on the basis of a model presenting the polymer as a solution of distortion of short-range order in a medium consisting of ideally ordered macrom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e01ce4c905fe7fe5bc8e1739acf04aa
https://doi.org/10.1016/0032-3950(85)90219-9
https://doi.org/10.1016/0032-3950(85)90219-9
Publikováno v:
Polymer Science U.S.S.R.. 28:943-951
A trimolecular mechanism is postulated for the reaction of polypropylene with oxygen, which represents the first step initiating the kinetic chain of oxidation. Crosslinking of polypropylene observed experimentally in the initial stages of oxidation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2a8d02d70d0b48457b43ce63d5d71f5
https://doi.org/10.1016/0032-3950(86)90234-0
https://doi.org/10.1016/0032-3950(86)90234-0
Publikováno v:
Polymer Science U.S.S.R.. 29:2149-2155
The diffusion of water in non-isocyanate polyurethane acetals of various nature and composition is studied, and a direct relation between the polymer composition, crystallinity, morphology, and diffusional characteristics is found. It is shown that t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4742de872c5273269f74cc02a10b25b9
https://doi.org/10.1016/0032-3950(87)90027-x
https://doi.org/10.1016/0032-3950(87)90027-x
Autor:
G.Ye. Zaikov, P.P. Nechayev
Publikováno v:
Polymer Science U.S.S.R.. 27:1101-1111
The kinetic mechanisms of acid-base hydrolysis of amides, esters, imides and other compounds are discussed from the viewpoint of the problem of regenerating monomers from heterochain polymers.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::195845e009e9b32204cde1191d94cffe
https://doi.org/10.1016/0032-3950(85)90389-2
https://doi.org/10.1016/0032-3950(85)90389-2