Premium
Investigation of the Gel Effect in Reactive Extrusion Processes for Free Radical Polymerization
Author(s) -
Zhang Guofang,
Jia Yuxi,
Sun Sheng,
Wu Lili,
Zhao Guoqun,
An Lijia
Publication year - 2007
Publication title -
macromolecular reaction engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.37
H-Index - 32
eISSN - 1862-8338
pISSN - 1862-832X
DOI - 10.1002/mren.200600030
Subject(s) - reactive extrusion , monomer , polymer chemistry , polymerization , radical polymerization , kinetic chain length , bulk polymerization , extrusion , viscosity , chemistry , methyl methacrylate , molar mass distribution , methacrylate , materials science , polymer , composite material , organic chemistry
The gel effect in the reactive extrusion process for free radical polymerization in a closely intermeshing co‐rotating twin screw extruder was investigated. First the reaction kinetic model was constructed mainly on the basis of entanglement theory. Next, numerical calculation expressions for the initiator and monomer concentrations, monomer conversion, average molecular weight and apparent viscosity were deduced. Finally, the evolution of the above variables were shown and discussed for the example of butyl methacrylate. The simulated results of the monomer conversion are in good agreement with experimental results.