Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Ye.V. Kuznetsov"'
Publikováno v:
Polymer Science U.S.S.R.. 16:225-233
The replacement of a p -phenylene by a m -phenylene nucleus in polyarylene amines, the addition to a polymer chain of hetero-atoms and an increase in the reaction temperature from 200 to 300° reduce stability, while treatment of a polymer with Al 2
Publikováno v:
Polymer Science U.S.S.R.. 29:497-501
Change in the strain-strength properties of a blend of LDPE with a urethane thermo-elastoplast when filled with carbon black has been investigated. The properties of the composite essentially depend on the amount of one or the other polymer component
Publikováno v:
Polymer Science U.S.S.R.. 27:1607-1611
The cyclopolymerization of 2,4-toluylene diisocyanate (TDI) in presence of phosphoric acid amides has been studied. It was shown that amidophosphites can catalyse both cyclic polymerization and trimerization of this diisocyanate. By varying the react
Publikováno v:
Polymer Science U.S.S.R.. 26:1285-1292
The authors have investigated the patterns of polymerization and copolymerization of 1,4-tetramethylene diisocyanate with 1,6-hexamethylene diisocyanate with use as catalyst of tris-(diethylamido) phosphite. It is shown that this catalyst permits cyc
Publikováno v:
Polymer Science U.S.S.R.. 27:503-517
The data on the low and high molecular weight forms of the existence of B2O3 and hydrogen oxoborates are reviewed. On this basis the authors attempt to classify the high molecular weight forms as inorganic representatives of the polyboroxanes. The po
Publikováno v:
Polymer Science U.S.S.R.. 19:942-949
Polymers of vinylphosphonic acid esters polymerized in the presence of Ziegler-Natta catalysts have been investigated by IR spectroscopy. The results show that the rate of polymerization is greatly influenced by the composition of a complex formed th
Publikováno v:
Polymer Science U.S.S.R.. 11:2035-2039
Publikováno v:
Polymer Science U.S.S.R.. 6:1507-1512
One of the fundamental problems in the chemistry and physics of macromolecular compounds is that of the resistance of polymers to the action of various physical and chemical agents. In the literature the thermal and thermal-oxidative degradation of p
Publikováno v:
Polymer Science U.S.S.R.. 7:2275-2282
Publikováno v:
Polymer Science U.S.S.R.. 6:1457-1461