Abstract
AbstractA series of Diels–Alder addition‐type copolymers prepared from 1,4,5,8‐tetrahydro‐1,4;5,8‐diepoxyanthracence and anthracene end‐capped 6F‐PDA imide oligomers were characterized. The composition of the anthracene end‐capped imide oligomers was found to be sensitive to monomer molar ratios and the mode of monomer addition. The resistance of the copolymer to thermooxidative degradation at 316 and 371°C was compared with a similar commercial polymer called Avimid‐N prepared from 4,4′‐hexafluoroisopropylidene‐2,2′ bis(phthalic acid anhydride) and para‐and meta‐phenylene diamine, abbreviated 6F‐PDA. There are strong indications that the copolymers undergo degradation initially by unzipping the diepoxyanthracene unit from the anthracene end‐capped 6F‐PDA oligomer unit (Avimid‐N like repeat unit), followed by a slower degradation of the more stable residual 6F‐PDA unit. © 1993 John Wiley & Sons, Inc.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of Polymer Science Part A: Polymer Chemistry
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
