Investigation of the structure of polyphenylironsiloxaneстатья
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Дата последнего поиска статьи во внешних источниках: 24 октября 2016 г.
Аннотация:The main features of the polyphenylironsiloxane (PPIS) structure were established by a combination of preparative fractionation, elemental analysis, gel-permeation chromatography, H-1 NMR and UV spectroscopy, and destructive trimethylsilylation. Specimens of PPIS contain a large amount of oligophenylsiloxane, which is apparently closed polycyclic oligomers. PPIS macromolecules consist of oligomeric siloxane fragments linked via iron oxide fragments. PPIS is characterized by the high heterogeneity of macromolecules and their fragments.