γ-Ray induced copolymerization of enamines

✍ Scribed by A. Faucitano; F. Faucitano Martinotti; A. Perotti

• Publisher: Elsevier Science
• Year: 1971
• Tongue: English
• Weight: 249 KB
• Volume: 7
• Category: Article
• ISSN: 0014-3057
• DOI: 10.1016/0014-3057(71)90150-9

✦ Synopsis

Attempts were made to obtain copolymers of a-fl unsaturated tertiary aliphatic amines (enamines) by using ~,-radiations from ~°Co to initiate.

Copolymerization takes place readily in the liquid state at 35 °, with the following monomeric mixtures: 1-morpholinebutene-benzovinyltriazole, 1-morpholinebutene-acrylamide, 1-morpholinebutene-acrylonitrile, 1-piperidine isobutene-acrylonitrile. No copolymers were obtained from 1.morpholine propene, presumably because this enamine cannot exist in a sufficiently pure state. In the system 1-morpholinebutene-acrylonitrile, copolymerization takes place also at --78 °, with the monomers mostly in a crystalline state and at --196 ° with the monomers in a crystalline or glassy state. Experiments with scavengers suggest that the mechanism of copolymerization at -78 ° is similar to that operating in the liquid state at 35 ° and involves radical intermediates.