Premium
Laminar and turbulent flow continuous interfacial polycondensations of nylon 66
Author(s) -
Griskey Richard G.,
Patel C. A.
Publication year - 1989
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1989.070380216
Subject(s) - laminar flow , reynolds number , turbulence , viscosity , materials science , yield (engineering) , mass transfer , intrinsic viscosity , mass transfer coefficient , laminar flow reactor , thermodynamics , polymer chemistry , chemical engineering , composite material , open channel flow , polymer , physics , engineering
The interfacial polycondensations of nylon 66 in a continuous reaction system have been studied. An experimental stirred flow reactor was used to determine both yield and intrinsic viscosity (molecular weight) as functions of reactant ratio (adipoyl chloride/hexamethylene‐diamine), and Reynolds number from laminar to turbulent flow. It was found that mass transfer was the controlling factor in the reaction system. The yield as a function of Reynolds number was found to directly correlate with the behavior of the combination of mass transfer coefficient and interfacial area. Intrinsic viscosity had maximum values in the same reactant ratio range as for batch and continuous cascade systems studied earlier. Intrinsic viscosity behavior was shown to relate to interfacial area behavior.