Abstract
We synthesized the new pyrene-functionalized tetraphenylethylene benzoxazine monomer (TPEP-BZ) through 1,1,2,2-tetra(3-formyl-4-hydroxyphenyl)ethylene with 1-aminopyrene through Schiff base reaction, reduction with NaBH4 and then ring-closing with paraformaldehyde in a mixture of 1,4-dioxane and absolute EtOH. DSC, TGA, and FTIR spectroscopy were performed to understand the ring-opening polymerization and its corresponding thermal stability of this new TPEP-BZ monomer and then blending with different weight ratios of single-walled carbon nanotubes (SWCNT) before and after thermal treatments. More interestingly, the TPEP-BZ/SWCNT nanocomposites display lower curing temperature (262 °C), but significantly higher Td value (475 °C) and char yield (74 wt%) compared with typical Pa type benzoxazine. In addition, the poly (TPEP-BZ)/SWCNT nanocomposites also display high specific capacitance (84 F g−1) at a current density of 0.5 A g−1 and excellent cycling stability (98.3% capacitance retention over 2000 cycles).
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 callDisclaimer: 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.
