Zobrazeno 1 - 10
of 127
pro vyhledávání: '"S.M. Baturin"'
Autor:
Vera P. Lodygina, A. I. Kuzaev, S.M. Baturin, V. V. Komratova, Elmira R. Badamshina, Yu.A. Ol'khov, G. A. Gorbushina, V. A. Grigorieva
Publikováno v:
International Journal of Polymeric Materials. 19:117-125
The reactions of PCT and CPCT of aliphatic isocyanates in the presence of catalysts HBSO and CN-DMSO were found to obey the first-order law. The observed rate constants at various temperatures and catalyst concentrations, the activation energy were d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c18afc9179ee49a337075c9d6e626f65
https://doi.org/10.1080/00914039308012023
https://doi.org/10.1080/00914039308012023
Publikováno v:
Polymer Science U.S.S.R.. 32:1175-1180
The kinetics of urethane formation on reaction of oligobutadienediols with 2,4-toluylene diisocyanate at an [NCO]:[OH] ratio 2:1 (prepolymer synthesis) is studied, and it is shown that a change in the reactivity of oligobutadienediols of different MM
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d65a16e4e69ac971f5d58d2195d59b2
https://doi.org/10.1016/0032-3950(90)90174-5
https://doi.org/10.1016/0032-3950(90)90174-5
Publikováno v:
Polymer Science U.S.S.R.. 32:1237-1241
The cyclotrimerization of 1,6-hexamethylenediisocyanate has been investigated in the presence of bis(tributyl tin)oxide without a solvent in the 353–393 K range by microcalorimetry, IR spectroscopy and gel permeation chromatography. The polycyclotr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::be02c4fe8335853860ba3b67ee172ac8
https://doi.org/10.1016/0032-3950(90)90183-7
https://doi.org/10.1016/0032-3950(90)90183-7
Publikováno v:
Polymer Science U.S.S.R.. 27:1276-1283
GPC and IR spectroscopy have been employed to investigate the properties of the sol fractions of polyether urethane elastomers from catalytic polymerization. The characteristics of the MMD of the sol fractions have been determined and their dependenc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1dd68d39cddbd7fc552a5958e7888318
https://doi.org/10.1016/0032-3950(85)90267-9
https://doi.org/10.1016/0032-3950(85)90267-9
Publikováno v:
Polymer Science U.S.S.R.. 28:389-396
Specific intermolecular interactions in mixtures containing oligobutadienyl urethane and oligooxyoctene triol have been studied by microcalorimetry and IR spectroscopy. Complex hydrogen-bonded associates are formed in this mixture, which involve uret
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a1602488f1b6cbe10b63075d4a27917
https://doi.org/10.1016/0032-3950(86)90096-1
https://doi.org/10.1016/0032-3950(86)90096-1
Publikováno v:
Polymer Science U.S.S.R.. 18:2808-2814
Heat stimulated depolarization (HSD) has been used to study the relaxation processes in crosslinked polyurethane (PU) elastomers. The activation parameters of dipole relaxation have been determined in the glass transition range. The main contribution
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::07b29d06db3372fd7eec92fe366b3adf
https://doi.org/10.1016/0032-3950(76)90219-7
https://doi.org/10.1016/0032-3950(76)90219-7
Publikováno v:
Polymer Science U.S.S.R.. 20:230-238
The use of tin dibutyl dilaurate for the preparation of crosslinked polyether urethanes changes the rules of thermal decomposition (reduces the activation energy and pre-exponential factor, changes the order of the reaction) and weakens the dependenc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b23288b46bf683eb87b1342b8bfd385e
https://doi.org/10.1016/0032-3950(78)90134-x
https://doi.org/10.1016/0032-3950(78)90134-x
Publikováno v:
Polymer Science U.S.S.R.. 20:2412-2417
Using a system incorporating a copolymer of tetrahydrofuran and propylene oxide, 1,4-butanediol, 1,1,1-trimethylolpropane and 2,4-toluylenedi-isocyanate, an analysis was made of the possible use of critical conditions of gel formation and the concent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80e744e7b648ccddf16d878bff36b4fe
https://doi.org/10.1016/0032-3950(78)90412-4
https://doi.org/10.1016/0032-3950(78)90412-4
Publikováno v:
Polymer Science U.S.S.R.. 26:1880-1888
The influence of plasticizers of various types affecting the physico-chemical and mechanical properties of polyurethane elastomers has been investigated for compositions comprising the copolymer of tetrahydrofuran and propylene oxide (PO), trimethylo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49f73b59bb320754126f8136f5b70388
https://doi.org/10.1016/0032-3950(84)90366-6
https://doi.org/10.1016/0032-3950(84)90366-6
Publikováno v:
Polymer Science U.S.S.R.. 20:309-313
The effect of molecular weight and polydispersity on the relaxational behaviour of linear poly(oxypropylene glycols) (POPGS) has been studied by pulse NMR spectroscopy. The length of the kinetic segment of the oligomer was determined. It is suggested
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b28169ee8a99f5b458d2904159b1c7d5
https://doi.org/10.1016/0032-3950(78)90038-2
https://doi.org/10.1016/0032-3950(78)90038-2