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|Title: ||Suspension polymerization processes|
|Authors: ||Brooks, Brian W.|
|Issue Date: ||2010|
|Publisher: ||© Wiley-VCH Verlag|
|Citation: ||BROOKS, B.W., 2010. Suspension polymerization processes. Chemical Engineering and Technology, 33 (11), pp. 1737-1734.|
|Abstract: ||Industrial suspension polymerization usually proceeds by a free-radical mechanism
to produce polymer beads. The size distribution of the polymer beads is often
similar to that of the polymerizing drops in the reactor. That distribution is determined
by the operating mechanisms of drop breakage and drop coalescence.
Consequently, the value of the Reynolds number is significant and a potential
change in flow regime must be considered in reactor scale-up. The choice of suspending
agent, which can be a water-miscible polymer or a finely divided particulate
solid, can affect both the drop size and the properties of the final product.
High monomer conversions are attainable but reaction kinetics can be affected by
increases in drop viscosity during the polymerization. Drop mixing, which sometimes
takes place, can be slow, so that non-uniformity occurs in the final product.
With copolymerization, complications can arise if the initiator, or one of the
monomers, is partially soluble in the continuous phase. Adverse environmental
impact of suspension polymerization can be avoided by cleaning and/or recycling
the continuous phase when it leaves the reactor.|
|Description: ||This is the pre-peer-reviewed version of an article submitted for publication in the journal, Chemical Engineeering and Technology[© Wiley-VCH Verlag], which has been published in its final form at: http://dx.doi.org/10.1002/ceat.201000210|
|Version: ||Submitted for publication|
|Publisher Link: ||http://dx.doi.org/10.1002/ceat.201000210|
|Appears in Collections:||Published Articles (Chemical Engineering)|
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