Zobrazeno 1 - 10
of 87
pro vyhledávání: '"P.A. Kirpichnikov"'
Publikováno v:
Polymer Science U.S.S.R.. 31:256-273
Promising ways of modifying polysulphide oligomers and composites based on them by different classes of reactive oligomers are shown: unsatured polymerizable oligomers, oligoepoxides, urethanes and polymeric complexes. Original experimental data are
Publikováno v:
Polymer Science U.S.S.R.. 31:1331-1337
The static and dynamic electrical conductivity of coordination compounds of 2, 4-tolylene diisocyanate with Cu (II) and Fe (II) halides, and also polyurethanes synthesized from them are studied. According to the proposed model, the electrical conduct
Publikováno v:
Polymer Science U.S.S.R.. 23:2737-2745
An equation has been derived giving the number-average amount of branchings per macromolecule for slightly branched polyurethanes in relation to degrees of conversion of functional groups. Experimental findings are taken as a basis for calculating ki
Publikováno v:
Polymer Science U.S.S.R.. 17:1159-1164
The mechanism of modification of liquid thiokols by methyl methacrylate (MMA) has been studied. It is established that the interaction occurs according to a radical mechanism by the attack RS· or RSS of the macroradicals at the double bond
Publikováno v:
Polymer Science U.S.S.R.. 18:3024-3031
By reacting with peroxide radicals phosphates retard initiation of oxidation of PE, both in the solid phase and in the melt. The efficiency of three phosphites has been determined quantitatively and it is shown that the inhibiting efficiency of phosp
Publikováno v:
Petroleum Chemistry U.S.S.R.. 23:27-30
Summary Phenol antioxidants are promising stabilizers for the industrial production of monomers. Their potential may be considerably improved by searching for optimum compositions and conditions of application.
Publikováno v:
Polymer Science U.S.S.R.. 18:2547-2553
Methods of precipitation and adsorption chromatography were used to investigate the fractional composition and distribution according to type of functionality in oligoisobutylenes containing terminal functional groups. The oligomers were prepared by
Autor:
Ye.I. Galeyeva, A.G. Liakumovich, B.A. Grigorovich, P.A. Kirpichnikov, S.V. Trifonov, Ye.Ye. Lobanova
Publikováno v:
Petroleum Chemistry U.S.S.R.. 27:135-141
1. 1. An express method has been developed for determining coking and the nature of burnout of coke deposits during pyrolysis of hydrocarbon crude. 2. 2. A new, hitherto unknown effect of non-uniform burnout of the carbon deposits (coke) formed durin
Publikováno v:
Polymer Science U.S.S.R.. 25:2504-2512
It is shown that epoxyphosphites, viz. glycidyl and epoxyoctadecyl esters of phosphorous acid have an inhibiting influence on the dehydrochlorination, colouring and gelation of PVC during thermal degradation of the polymer under vacuum. Comparing dat
Publikováno v:
Polymer Science U.S.S.R.. 25:1871-1877
The special aspects of the ozonization of the copolymers of isobutylene with isoprene in solution have been studied. Assumptions are advanced on the mechanism of the ozonization reaction and the composition of the products formed on ozonization of is