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Polymerization-filled polycaprolactam

✍ Scribed by M.M. Natova; V.M. Cheshkov; N.R. Ashurov; M.M. Usmanova; A.M. Veksel'man

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 209 KB
Volume: 29
Category: Article
ISSN: 0014-3057
DOI: 10.1016/0014-3057(93)90123-w

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✦ Synopsis

Adsorption interactions between basic monomer (8-caprolactam) and acidic inorganic surfaces (calcium phosphate and 3,-alumina have been investigated by i.r. spectroscopy. It has been shown that the character of the adsorption interactions would lead to similar behaviour during e-caprolactam polymerization. Polymerization kinetics in the presence of y-alumina without any initiating system have been studied; the apparent activation energy of the process as well as the polymerization rate constants have been determined. Formation of a transition complex of the monomer with the acidic sites on the ),-alumina surface is supposed.

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