Journal
JOURNAL OF APPLIED POLYMER SCIENCE
Volume 138, Issue 22, Pages -Publisher
WILEY
DOI: 10.1002/app.50522
Keywords
copolymers; polycondensation; thermoplastics
Categories
Funding
- China Postdoctoral Science Foundation [2017M623001]
- National Natural Science Foundation of China [52073039, 51773028, 51903029, 21805027, 51803020]
- Sichuan Major Science and Technology Special Project [2019ZDZX0016]
- International Science and Technology Cooperation Project [52011530027]
- Fundamental Research Funds for the Central Universities [ZYGX2019J026]
- Major Special Projects of Sichuan Province [2020YFG0270, 2020ZDZX0020, 2019ZDZX0027]
- International Science and Technology Cooperation Project from Chengdu municipal government [2019-GH02-00037-HZ]
- Sichuan Science and Technology Program [2019YJ0197, 2020YFG0100, 2019YFG0056]
Ask authors/readers for more resources
Polyarylene ether nitrile (PEN) based on biphenol exhibits high glass transition temperature, tensile strength, and low elongation at break. Improved PEN random copolymers with higher elongation at break and excellent mechanical, thermal, and dielectric properties have been synthesized, showing potential for high-temperature resistant applications in insulated cables.
Polyarylene ether nitrile (PEN) based on biphenol exhibits a high glass transition temperature of 216 degrees C, a high tensile strength of 110 MPa, and low elongation at break of approximately 4%. A series of PEN random copolymers with improved elongation at break were synthesized using various bisphenol compounds and 2,6-dichlorobenzonitrile (DCBN). The resulting PEN random copolymers exhibited a high glass transition temperature and thermal stability up to 513 degrees C in a nitrogen atmosphere. PEN copolymers were amorphous and could easily be cast into transparent films with a tensile strength of 97.93-117.88 MPa and tensile modulus of 2187.98-2558.44 MPa. Most importantly, elongation at break of these PEN copolymers was higher than 13%. PEN copolymer films had a dielectric constant of 3.77-3.89 at 1 kHz and extremely low dielectric loss (<0.02). At the same time, the breakdown strength of PEN was in the range of 137.92-198.19 kV/mm and energy storage density was in the range of 0.32-0.68 J/cm(3). Excellent mechanical, thermal, and dielectric properties of PEN make it possible to use them as high-temperature resistant dielectrics to act on high-temperature resistant insulated cables.
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