Journal
POLYMER CHEMISTRY
Volume 10, Issue 32, Pages 4469-4476Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9py00752k
Keywords
-
Categories
Funding
- Dralon GmbH
Ask authors/readers for more resources
To date, carbon fibers (CFs) are mostly derived from poly(acrylonitrile) (PAN) precursor fibers, which are processed via solution spinning. In this study, a novel, melt processible class of PAN-based CF precursors is presented. The polymeric precursors are synthesized via copolymerization of acrylonitrile with N,N '-substituted acryloamidines. Analysis of the volatile compounds formed during cyclization strongly suggests the reformation of the nitrile group via concomitant formation of primary amines. In air, the copolymers inherit a very low onset temperature of cyclization, Tonset-c, of 138 degrees C in case 20 mol% of N,N '-di(2-propyl)acryloamidine are incorporated. Copolymerization parameters were determined and suggest an almost statistical incorporation of both comonomers. Both the thermal and rheological properties of the copolymers have been studied and allow for melt spinning. Melt spun fibers were transformed into CFs via stabilization in air followed by carbonization under nitrogen. CF formation was followed up to 1800 degrees C by wide-angle X-ray scattering and Raman analysis.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available