ISSN:
0009-286X
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
Polymerization engineering. Polyreactions are complex chemical reactions which are generally conducted in liquid phase. The characteristic feature of polyreactions is the pronounced increase in viscosity of the reactants during the reaction. The increase in viscosity influences numerous reaction and process parameters, such as the reaction kinetics, the transfer of mass, heat, and momentum, the degree of mixing of the reactants, and the residence time distribution of continuous reactors. Thus the increase in viscosity influences the performance, selectivity, and safety of the reactor. The choice of reactor for performing polyreactions can be based on various aspects. Of decisive importance are the performance and selectivity of the reactor. For the cases of simple and complex polyreactors, various kinds of reactors are compared with respect to their performance and selectivity, with the molar mass distribution of the resulting polymers serving as example of the selectivity of polyreactions. In the case of simple polymerizations, the molar mass distribution of the polymers depends unequivocally on the type of reactor and the various reactor types can be arranged in appropriate order. This is no longer the case for more complex polymerizations because the concentration conditions in the reactors play an increasingly important role.
Additional Material:
16 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cite.330610306
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