Détermination de la viscosité intrinsèque de solutions de polymères par une simple détermination de la viscosité

1962/11/01 by O. F. Solomon, I. Z. Ciutǎ · 25 citations
Chemistry · #Analytical Chemistry and Chromatography #Various Chemistry Research Topics

paper · doi:10.1002/app.1962.070062414

Abstract

Abstract By studying the molecular weights of various solutions of cis ‐1,4‐polyisoprene the authors arrived at the formula \documentclassarticle\pagestyleempty\begindocument[ η ] = √ 2/c √ η _sp - \rm lnη _rel\enddocument which allowed the calculation of the intrinsic viscosity of the polymer solutions by a single viscosity determination. The formula was verified for different systems of polymer–solvent and the values are in accord with those obtained by extrapolation. An operating concentration of about 0.2% is recommended.

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