TY - JOUR
T1 - Interactions of Mixing, Diffusion and Reaction in Fast Step Growth Polymerizations
AU - Lee, Yein MING
AU - Lee, L. James
PY - 1989/3
Y1 - 1989/3
N2 - A mathematical model based on a slab configuration is employed to simulate fast step growth polymerizations. The effect of mixing pattern, molecular diffusivity, and catalysl concentration on the conversion profile is studied for reaction systems with different gel conversions. The results, which can be explained by the intensity and the scale of segregation, provide some conceptual guidelines in designing appropriate mixing methods for fast step growth polymerizations. The distribution of slab thickness and the benefit of using cascade impingement mixing in the reaction injection molding (RIM) process are explained by the phenomenon of flow transformation in the mixing chamber.
AB - A mathematical model based on a slab configuration is employed to simulate fast step growth polymerizations. The effect of mixing pattern, molecular diffusivity, and catalysl concentration on the conversion profile is studied for reaction systems with different gel conversions. The results, which can be explained by the intensity and the scale of segregation, provide some conceptual guidelines in designing appropriate mixing methods for fast step growth polymerizations. The distribution of slab thickness and the benefit of using cascade impingement mixing in the reaction injection molding (RIM) process are explained by the phenomenon of flow transformation in the mixing chamber.
UR - http://www.scopus.com/inward/record.url?scp=0024628408&partnerID=8YFLogxK
U2 - 10.1080/03602558908048592
DO - 10.1080/03602558908048592
M3 - Article
AN - SCOPUS:0024628408
SN - 0360-2559
VL - 28
SP - 151
EP - 184
JO - Polymer-Plastics Technology and Materials
JF - Polymer-Plastics Technology and Materials
IS - 2
ER -