Preparation of Polyesteramides in a Reactive Extrusion Processстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 5 декабря 2014 г.
Аннотация:The synthesis of poly(E-caprolactone-co-E-caprolactam) copolymers using reactive extrusion is reported. The copolymers are prepared by anionic ring-opening polymerization of E-caprolactam in polycaprolactone melt in a twin-screw microcompounder using masterbatches of sodium caprolactamate and hexamethylene-1,6-dicarbamoylcaprolactam in E-caprolactam as initiator and activator, respectively. The monomer conversion is found to be almost quantitative. The extrudates possess polyester backbones with integrated short polyamide fragments, forming co-existing polyamide and polyester crystals. The polyester crystallinity index is quite low and rather constant, whereas the content of the polyamide - and -phases varies with the copolymer composition and initiator/activator concentration.