FIELD: analytical methods in the field of silicon-containing polymers.
SUBSTANCE: invention relates to manufacturing ceramic shell molds for precision metal molding according to molded templates using express control of binder for shell molds. Invention involves high-efficiency chromatographic columns filled with super-cross-linked polydivinylbenzene as sorbent and operated with absolute aliphatic alcohols, e.g. ethanol, as eluent. Calibration curve is preliminarily plotted using specially synthesized samples of individual ethoxysiloxane oligomers.
EFFECT: reduced determination time and avoided use of toxic eluents in chromatographic procedure.
2 cl, 2 tbl
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