Open AccessCreating molecular weight distribution of butadiene rubber on neodymium-based catalytic system
Author(s) -
G. V. Manuyko,
D. V. Bashkirov,
V. V. Bronskaya,
Т. В. Игнашина,
О. В. Харитонова,
Г. А. Аминова
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/734/1/012066
Subject(s) - molar mass distribution , monomer , polymer , macromolecule , natural rubber , polymerization , cascade , materials science , catalysis , chain transfer , thermodynamics , polymer chemistry , chemistry , radical polymerization , composite material , physics , organic chemistry , chromatography , biochemistry
The method of calculation of the molecular weight distribution (MWD) of rubber SDRN synthesized in the cascade of reactors with a continuous mixer in the presence of chain transfer to the polymer (by direct numerical solution system of equations arising from the kinetic scheme of polymerization with special selection of boundary conditions, maximum length of macromolecules and calculation step value). Numerical solution of mathematical model that is systems of differential equations for concentrations of monomer, co-catalyst and macromolecules of polymer together with thermal balance is obtained. The influence of regime parameters on MWD and molecular mass characteristics of the final product obtained using molecular weight distribution are analyzed.