Zobrazeno 1 - 10
of 19
pro vyhledávání: '"L. B. Krentsel"'
Autor:
Georgiy A. Shandryuk, A. V. Roenko, L. B. Krentsel, Maria L. Gringolts, E. Sh. Finkel'shtein, Alexander S. Peregudov, Yaroslav V. Kudryavtsev, Yu. I. Denisova
Publikováno v:
Polymer Science, Series B. 60:735-745
An exchange reaction of cross-metathesis between polynorbornene and poly(5-hydroxyoctenamer) in a chloroform–methanol mixture (10: 1 vol/vol) in the presence of Ru–carbene Grubbs’ complexes Gr-1 and Gr-2 has been studied. Gr-2 catalyst has a mu
Autor:
L. B. Krentsel, Yaroslav V. Kudryavtsev, Yu. I. Denisova, Maria L. Gringolts, Georgiy A. Shandryuk, Alexander S. Peregudov, E. Sh. Finkel'shtein
Publikováno v:
Polymer Science, Series B. 59:412-420
The cross-metathesis reaction between polytrimethylsilylnorbornene and polycyclooctene is investigated for the first time. Using the Grubbs Ru-carbene complex of the first generation, the synthesis of random multiblock copolymers of trimethylsilylnor
Autor:
Yulia I. Denisova, Maria L. Gringolts, Eugene Sh. Finkelshtein, A.D. Litmanovich, Georgiy A. Shandryuk, Yaroslav V. Kudryavtsev, L. B. Krentsel
Publikováno v:
European Polymer Journal. 86:143-153
Crystallinity of statistical multiblock copolymers of norbornene and cyclooctene with nearly equimolar composition and different degrees of blockiness is studied by differential scanning calorimetry including thermal fractionation by successive self-
Autor:
Yaroslav V. Kudryavtsev, Yulia I. Denisova, Eugene Sh. Finkelshtein, Alexander S. Peregudov, Maria L. Gringolts, L. B. Krentsel, A.D. Litmanovich, E. A. Litmanovich
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 11, Iss 1, Pp 1796-1808 (2015)
Beilstein Journal of Organic Chemistry
Beilstein Journal of Organic Chemistry
The cross-metathesis of polynorbornene and polyoctenamer in d-chloroform mediated by the 1st generation Grubbs’ catalyst Cl2(PCy3)2Ru=CHPh is studied by monitoring the kinetics of carbene transformation and evolution of the dyad composition of poly
Autor:
E. Sh. Finkel'shtein, L. B. Krentsel, Yaroslav V. Kudryavtsev, Yu. I. Denisova, Georgiy A. Shandryuk, Maria L. Gringolts, A.D. Litmanovich
Publikováno v:
RSC Advances. 5:316-319
Copolymers of norbornene and cyclooctene were synthesized for the first time by the cross-metathesis of polynorbornene with polyoctenamer. This strategy made it possible to use the 1st generation Grubbs catalyst, which exhibits low activity toward co
Autor:
E. A. Litmanovich, Georgiy A. Shandryuk, A.D. Litmanovich, L. B. Krentsel, Yaroslav V. Kudryavtsev, Sergey O. Ilyin, Yulia I. Denisova, Valery G. Kulichikhin, Alexander Ya. Malkin, Galina N. Bondarenko
Publikováno v:
Macromolecules. 47:4790-4804
Bulk and solution studies revealed a strongly pronounced effect of chain structure on the rheological and relaxation behavior of well-characterized vinyl acetate–vinyl alcohol copolymers of similar composition and polymerization degree. The frequen
Autor:
Galina N. Bondarenko, Georgiy A. Shandryuk, Sergey O. Ilyin, Valery G. Kulichikhin, A. Ya. Malkin, A.D. Litmanovich, L. B. Krentsel, Ya. V. Kudryavtsev, Yu. I. Denisova
Publikováno v:
Polymer Science Series A. 56:196-204
A comparative study of the viscoelastic properties of melts of vinyl acetate-vinyl alcohol copolymers with equimolar compositions characterized by different statistical distributions of chain units has been performed. It has been shown that the princ
Autor:
L. B. Krentsel, Inesa V. Blagodatskikh, Yaroslav V. Kudryavtsev, G. A. Shandryuk, Yu. I. Denisova, Alexander S. Peregudov, A. D. Litmanovich
Publikováno v:
Polymer Science Series A. 55:385-392
Thermal fractionation via the method of successive self-nucleation and annealing was used for the first time to study the crystallinity of vinyl acetate-vinyl alcohol copolymers with different random distributions of chain units. The lamella-thicknes
Autor:
Yaroslav V. Kudryavtsev, Yu. I. Denisova, Vadim V. Podbelskiy, E. A. Litmanovich, L. B. Krentsel, A.D. Litmanovich, Alexander S. Peregudov
Publikováno v:
Polymer Science Series B. 54:375-382
The kinetics and structure of products of the alkaline hydrolysis of poly(vinyl acetate) in an acetone-water mixture are studied via 1H NMR spectroscopy. The reaction is considerably accelerated and, according to the dynamic light-scattering data, is
Publikováno v:
Polymer Science Series A. 52:787-793
The accelerated aging of butadiene-nitrile rubber (NBR) induced by IR radiation is studied. At 100°C, intensive aging (the formation of imide and anhydride crosslinks) of NBR is observed in air and argon. The activity of aging under IR radiation is