Zobrazeno 1 - 10
of 114
pro vyhledávání: '"I.I. Perepechko"'
Autor:
I.I. Perepechko, B.Ya. Mar'yasin
Publikováno v:
Polymer Science U.S.S.R.. 20:1806-1814
The influence of gamma irradiation upon the visco-elastic properties of PMMA and poly-4-methylpentene-1 (P4MP1) has been investigated, using the technique of forced resonance vibrations of cantilever fixed specimens. It is shown that variations in th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79786310936980881f6f5f2c640465ad
https://doi.org/10.1016/0032-3950(78)90437-9
https://doi.org/10.1016/0032-3950(78)90437-9
Autor:
Ye.B. Voloshinov, I.I. Perepechko
Publikováno v:
Polymer Science U.S.S.R.. 19:1856-1862
It was shown that results of measuring ultrasonic velocity in polyimide prepared from diphenyloxide tetracarboxylic acid dianhydride and diaminodiphenyl ester near 0°K enable conclusions to be drawn about the reorientation motion of phenylene groups
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::abbdbded522b5ecfa4c3b1f6075d426b
https://doi.org/10.1016/0032-3950(77)90202-7
https://doi.org/10.1016/0032-3950(77)90202-7
Publikováno v:
Polymer Science U.S.S.R.. 30:896-900
The dynamic storage modulUSA in shear and the loss tangent of phenol-formaldehyde fibres with different crosslink density were measured over a broad temperature interval by the method of free torsional vibrations at 1 Hz. The multiplet character of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a777cda81b6ad42bbca254541602b6e7
https://doi.org/10.1016/0032-3950(88)90206-7
https://doi.org/10.1016/0032-3950(88)90206-7
Publikováno v:
Polymer Science U.S.S.R.. 27:1673-1677
A study has been made of temperature dependences of the dynamic shear modulus G ′, the loss tangent tan δ and the low frequency rate of shear waves c t for individual cellulose hydrate fibres. The investigation was carried out with the aid of a mi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed00e5375a033b9de7465fc8e13243cc
https://doi.org/10.1016/0032-3950(85)90362-4
https://doi.org/10.1016/0032-3950(85)90362-4
Effect of chemical structure and concentration of plasticizers on viscoelastic properties of SKN-26M
Publikováno v:
Polymer Science U.S.S.R.. 29:1888-1894
Two series of plasticized butadiene-acrylonitrile elastomer (SKN-26M) with dibutyl phthalate or dibutyl sebacate as plasticizers were studied over the temperature interval of 77–323 K. Both plasticizers influence the storage modulus in shear, G′,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2de4104f30f8b8e5a8684beba20519a6
https://doi.org/10.1016/0032-3950(87)90061-x
https://doi.org/10.1016/0032-3950(87)90061-x
Publikováno v:
Polymer Science U.S.S.R.. 28:170-176
New parameters are introduced, permitting characterization of the effects of plasticization and antiplasticization of polymers. It was found that by the introduction of the same amount of stilbene into PK, in the range of rubber elasticity the dynami
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc2a6be48ed2e5b0ee191cf65017710c
https://doi.org/10.1016/0032-3950(86)90023-7
https://doi.org/10.1016/0032-3950(86)90023-7
Publikováno v:
Polymer Science U.S.S.R.. 17:1164-1172
The method of free torsional vibrations has been used to study molecular mobility in polyvinylfluoride. The α-, s- and γ-relaxation processes have been observed and investigated. An analogy has been established between relaxation processes and mole
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c5050dda44e33caebebe9a16c23a560
https://doi.org/10.1016/0032-3950(75)90373-1
https://doi.org/10.1016/0032-3950(75)90373-1
Autor:
S.S Yakovenko, I.I Perepechko
Publikováno v:
Polymer Science U.S.S.R.. 23:1301-1306
The plasticizing and “antiplasticizing” effect of moisture on polycaproamide was established. The addition of moisture displaces the glass temperature T g of the polymer to lower temperature and reduces the dynamic shear modulus G ′ above T g ,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44ccfc78d2d44a7e86e3e81bd417c543
https://doi.org/10.1016/0032-3950(81)90353-1
https://doi.org/10.1016/0032-3950(81)90353-1
Publikováno v:
Polymer Science U.S.S.R.. 20:2315-2321
The visco-elastic properties and relaxation processes in the copolymers of unsaturated polyesters (UPC) have been investigated using the method of free torsion oscillations. It has been found that the effect of the degree of crosslinking on visco-ela
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::263e59c2f9e63587b86611a3c4042c82
https://doi.org/10.1016/0032-3950(78)90401-x
https://doi.org/10.1016/0032-3950(78)90401-x
Publikováno v:
Polymer Science U.S.S.R.. 23:1413-1420
The influence of stabilizers of thermooxidative degration of poly-4-methyl-1-pentene on its viscoelastic properties has been investigated by the technique of forced resonance vibrations of a specimen held as a cantilever. The addition of stabilizers
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44b31219468b85870c36aa27f5330b13
https://doi.org/10.1016/0032-3950(81)90108-8
https://doi.org/10.1016/0032-3950(81)90108-8