Thermo-oxidation of lactam polymers related to the conditions of their preparation by hydrolytic polymerization

✍ Scribed by B. Lánská; J. Šebenda

• Book ID: 103072116
• Publisher: Elsevier Science
• Year: 1985
• Tongue: English
• Weight: 302 KB
• Volume: 21
• Category: Article
• ISSN: 0014-3057
• DOI: 10.1016/0014-3057(85)90169-7

✦ Synopsis

AImtraet--Due to side reactions, polymers (prepared by hydrolytic polymerization under the same conditions) of 7, 9 and 13-membered lactams differ in the number of macromolecules, in the content of acid and basic groups, and also in the ratio of basic and primary amine groups. Due to the different extents of secondary reactions which are temperature-dependent, the polymers contain different concentrations of structures which accelerate or retard therrno-oxidation. At polymerization temperatures below 250 °, the reaction time has no effect on the subsequent oxidation of the polymer.