Synthesis of high molecular polyoxamides at a liquid—gas interface

✍ Scribed by Sokolov, L. B.

• Publisher: John Wiley and Sons
• Year: 1962
• Weight: 489 KB
• Volume: 58
• Category: Article
• ISSN: 0022-3832
• DOI: 10.1002/pol.1962.1205816681

✦ Synopsis

Abstract

The principle of the new gas‐phase method of polycondensation consists of carrying out the polycondensation reaction of two high reactive compounds at a liquid—gas interface. The gas‐phase method permits the synthesis of polyamides with rapidly hydrolyzing diacid chlorides (e.g., oxalyl chloride), which cannot be used for liquid—liquid polycondensation. The gas‐phase synthesis of polyhexamethyleneoxamide from hexamethylenediamine and oxalyl chloride has been investigated in detail. The common features of gas‐phase and interfacial methods of polycondensation are due to the fact that in both cases the chemical reaction proceeds in the polymeric film. The gas‐phase methods can be used for the synthesis of a series of polymers.