Open AccessPolymer weight determination from numerical and experimental data of the reduced viscosity of polymer in brine
Author(s) -
A. Vega Paz,
F. de J. Guevara-Rodrı́guez,
Jorge Palomeque,
and N. Victorovna Likhanova
Publication year - 2019
Publication title -
revista mexicana de física/revista mexicana de física
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.181
H-Index - 25
eISSN - 2683-2224
pISSN - 0035-001X
DOI - 10.31349/revmexfis.65.321
Subject(s) - polymer , brine , radius of gyration , viscosity , materials science , gyration , thermodynamics , relative viscosity , polymer chemistry , polymer solution , reduced viscosity , intrinsic viscosity , composite material , physics , mathematics , geometry
The molecular weight of poly[acrylamide-co-vinylpyrrolidone-co-(vinyl benzyl) trimethyl ammonium]chloride is determined from numerical and experimental data of the reduced viscosity of polymer in brine (with 0.1M NaCl) at normal temperature and pressure. The methodology is based on the numerical results of the mean radius of gyration of polymer and reduced viscosity which is derived from the molecular dynamics simulation of the mixture by using the NPT ensemble. The formula of the reduced viscosity as a function of the polymer radius of gyration and the polymer concentration in brine is proposed.