Journal
MACROMOLECULAR RESEARCH
Volume 23, Issue 10, Pages 937-943Publisher
SPRINGER
DOI: 10.1007/s13233-015-3125-y
Keywords
poly(imino ether ketone)s; heat-resistant polymer; copper-catalysis; foam
Categories
Funding
- Postgraduate Innovation Fund Project by Southwest University of Science and Technology [14ycxjj0006]
- National Natural Science Foundation of China [21202134, 11447215]
- Project of Research and Development of Applied Technology of Mianyang City of China [14G-01-3]
Ask authors/readers for more resources
In this paper, we introduce three high-performance polymers with similar structures, poly(imino ether ketone) (PIEK)s, which are synthesized by the ligand free copper-catalyzed C-N cross coupling reaction of aryl halides and primary aromatic diamines at moderate temperature. The influence of the solvents, base, temperature, and catalyst ligands on the polycondensation reaction is investigated. The structures of the polymers are characterized by means of 1H NMR spectroscopy, FTIR spectrometer and elemental analyses, and the results show a good agreement with the proposed structure. They all exhibit high glass transition temperature (T (g) > 170 A degrees C), good thermal stability with high decomposition temperature (T (d,5%)> 440 A degrees C), and an excellent solubility in most organic solvents. In view of its good thermal stability and solubility, PIEK-1 foam with low density, 96 mg/cm(3), is prepared via thermal induced phase separation and freeze-drying technology. The PIEK-1 foam possesses higher thermal stability than that of basal PIEK-1 (T (d,5%)> 465 A degrees C). Furthermore, due to intermolecular hydrogen bonds of the polymers, the achieved foam exhibits good mechanical property.
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