کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1254034 | 971330 | 2015 | 4 صفحه PDF | دانلود رایگان |
Star-branched polyamide 6 was prepared via anionic ring-opening polymerization of ɛ-caprolactam in the presence of a simple benzene-centered trifunctional activator of N,N′,N″-trimesoyltricaprolactam. A high polymer yields of above 95% were achieved at 160 °C for 15 min utilizing ɛ-caprolactam magnesium bromide as a catalyst. Compared with its linear counterpart, the resultant star-branched polyamide 6 showed smaller relative viscosity (1.51), decreased melting temperature (218 °C) and lower crystallinity (24.2%). The specific properties demonstrated the existence of a star-branched structure and provided potential advantages in engineering applications.
Star-branched polyamide 6 was prepared via anionic ring-opening polymerization of ɛ-caprolactam in the presence of a simple benzene-centered trifunctional activator of N,N′,N″-trimesoyltricaprolactam. Compared with its linear counterpart, the resultant star-branched polyamide 6 showed smaller relative viscosity, decreased melting temperature and lower crystallinity.Figure optionsDownload as PowerPoint slide
Journal: Chinese Chemical Letters - Volume 26, Issue 11, November 2015, Pages 1389–1392