ISSN:
0032-3888
Schlagwort(e):
Chemistry
;
Chemical Engineering
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
,
Maschinenbau
,
Physik
Notizen:
The objective of this article is to introduce anew general approach For conversion prediction in high-conversion free-radical polymerizations-“The Method of Kinetic Similarity.” Using a single homopolymer reference curve of methyl meth-acrylate (MMA) and one to two time-scaling parameters, the conversion vs. time curves for MM A, ethyl methacrylate (EMA), vinyl chloride (VC), acrylonitrile (AN), styrene methyl methacrylate (SMMA), and styrene acrylonitrile (SAN) could be well-described. For MMA and VC, these parameters are shown to obey expected Arrhenius relationships over 45 to 90°CC and 30 to 70°C, respectively. The method is simple to apply, continuous over the whole conversion range, utilizes existing knowledge at low and limiting conversions, and avoids application of usual low conversion assumptions into the diffusion-controlled region.
Zusätzliches Material:
15 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/pen.760221208
