Zobrazeno 1 - 10
of 69
pro vyhledávání: '"E.S. Gankina"'
Publikováno v:
Journal of Chromatography A. 609:355-362
The mechanism of the fractionation of two-block AB copolymers (BC), consisting of polystyrene (PS) as block A and poly(tert.-butyl methacrylate) (PtBMA) as block B, was studied by thin-layer chromatography (TLC). It is shown that under the critical c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc9c108570fac212b2a240c6e1445ade
https://doi.org/10.1016/0021-9673(92)80180-3
https://doi.org/10.1016/0021-9673(92)80180-3
Publikováno v:
Polymer Science U.S.S.R.. 33:2344-2352
Laws governing separation by thin-layer chromatography (TLC) of block copolymers of type AB, consisting of polystyrene (PS) and poly(tert-butyl methacrylate) (PBMA) blocks were studied. It has been shown that when TLC is carried out in conditions cri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9e76fe82c8acf61da7931993e929656
https://doi.org/10.1016/0032-3950(91)90086-6
https://doi.org/10.1016/0032-3950(91)90086-6
Publikováno v:
Polymer Science U.S.S.R.. 33:1895-1902
The potential of a time-of-flight mass spectrometer with ionization by californium-252 fission products has been studied with regard to identification of oligomeric polystyrenes (PS) by means of their positive molecular ions M+. The optimized procedu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d049df204006c3558737f6e200148d8
https://doi.org/10.1016/0032-3950(91)90029-p
https://doi.org/10.1016/0032-3950(91)90029-p
Publikováno v:
Polymer Science U.S.S.R.. 18:1873-1881
Styryl aluminium (StAl) was synthesized with a degree of polymerization P for each aluminium bond 2:30. It was shown that under model conditions StAl reacts with benzoyl peroxide (BP) very rapidly at 0° and the reaction is accompanied by the formati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2375449d26037f772812bfc1ba2f606f
https://doi.org/10.1016/0032-3950(76)90321-x
https://doi.org/10.1016/0032-3950(76)90321-x
Publikováno v:
Polymer Science U.S.S.R.. 24:909-915
A method of gradient adsorption thin layer chromatography has been developed for fractionating statistical styrene-acrylonitrile copolymers containing from 4·5 to 44·7 wt.% of acrylonitrile. Using the proposed chromatographic system it is possible
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e545b465b637a6e499304fe9b5b365df
https://doi.org/10.1016/0032-3950(82)90350-1
https://doi.org/10.1016/0032-3950(82)90350-1
Publikováno v:
Journal of Chromatography A. 208:381-387
The compositional inhomogeneity of styrene—acrylonotrile random copolymers has been investigated by gradient adsorption thi-layer chromatography. The compositional distributions obtained this way are in good agreement with those calculated from the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b7df8f8fad07d4b0717c79af9bb9b63
https://doi.org/10.1016/s0021-9673(00)81951-2
https://doi.org/10.1016/s0021-9673(00)81951-2
Publikováno v:
Polymer Science U.S.S.R.. 20:2608-2615
The method proposed for determination of the molecular weight distribution (MWD) of block copolymers involves the use of GPC data along with continuous composition determinations during block copolymer fractionation processes. Apart from the normal p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3aeee595bfd057cde3409b72a0fd93cd
https://doi.org/10.1016/0032-3950(78)90198-3
https://doi.org/10.1016/0032-3950(78)90198-3
Publikováno v:
Polymer Science U.S.S.R.. 21:3062-3068
To synthesize organo-aluminium compounds with a polystyryl radical (PS)n. ·AIEt3−n, thermal polymerization of styrene was carried out in the presence of AlEt3 as a chain transfer agent. It was established that by changing the ratio of monomer: :ch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ed2183706ccf9448a24f9e498334cf6
https://doi.org/10.1016/0032-3950(79)90142-4
https://doi.org/10.1016/0032-3950(79)90142-4
Publikováno v:
Journal of Chromatography A. 365:315-320
A laser fluorometric detector for quantitative analysis of 5-dimethylaminonaphthalene-1-sulphonyl (Dns) amino acids has been developed. Photon counting was used for fluorescence detection and a computer was used for data processing. Different types o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff7eee7fe499ca0a8ece51cabea8a7af
https://doi.org/10.1016/s0021-9673(01)81570-3
https://doi.org/10.1016/s0021-9673(01)81570-3
Publikováno v:
Polymer Science U.S.S.R.. 19:1153-1158
Acrylonitrile (AN) polymerization is more efficiently initiated in toluene by lithium polystyryl (LPS) (up to 55%) than by lithium butyl (∼1%). The styrene-acrylonitrile block copolymers produced had 30–50 mole % of the AN chain units; the molecu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::16d2d26fc82b7e0b5a5a08fc8c665d1f
https://doi.org/10.1016/0032-3950(77)90037-5
https://doi.org/10.1016/0032-3950(77)90037-5