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Polymerization of γ-ethyl-L-glutamate-N-carboxyanhydride initiated by di-n-butyl and di-isopropyl amine

✍ Scribed by Evaristo Peggion; Alessandro Cosani; Anna Maria Mattucci; Ernesto Scoffone

Publisher: Wiley (John Wiley & Sons)
Year: 1964
Tongue: English
Weight: 394 KB
Volume: 2
Category: Article
ISSN: 0006-3525
DOI: 10.1002/bip.1964.360020110

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✦ Synopsis

The yethyl-bglutamate NCA polymerization initiated by di-n-butyl and di-isopropyl amine was studied. The experimental kinetic curves show an autocatalytic portion with 2530% conversion, followed by a pseudo first-order region which extends up to at least 8590%. In this linear region, the reaction order appears to be 0.5 in initiator with both aminea. High degrees of polymerization and high reaction rates were observed. These results are similar to those obtained in the 7-benzyl-cglutamate NCA polymerization initiated by sodium methoxide.

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