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Some remarks on the condensation stage in hydrolytic ε-caprolactam polymerization

✍ Scribed by G.B. Gechele; A. Mattiussi

Publisher
Elsevier Science
Year
1967
Tongue
English
Weight
375 KB
Volume
3
Category
Article
ISSN
0014-3057

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✦ Synopsis

The condensation step of the hydrolytic caprolactam polymerization, in the molten state and batch processes, has been studied. Runs effected in the presence or in the absence of stirring have been compared. The relation between the viscosity of the polymer and the condensation time has a sinusoidal shape in the absence of stirring. The oscillations tend to flatten if the polymerization is carried out in the presence of a chain regulator. This behaviour seems to be due only to condensation reactions and not transamidation.

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