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Semi‐aromatic copoly(ether ether amide): Synthesis and properties
Author(s) -
Ren Haohao,
Li Pengcheng,
Wu Yanan,
Hu Jinbo,
Zhang Gang,
Yan Yonggang
Publication year - 2021
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.50940
Subject(s) - ether , materials science , glass transition , thermal stability , polymer chemistry , amide , copolymer , hydroquinone , polymer , crystallinity , solvent , diphenyl ether , corrosion , organic chemistry , chemistry , composite material
A series of semi‐aromatic copoly(ether ether amide)s (hydroquinone (HQ) (0%)‐HQ (100%)) were synthesized by 1,1‐bis(4‐hydroxyphenyl)‐1‐phenylethane (BHPPE), 1,4‐benzenediol (HQ) and 1,6‐ N , N ′‐bis(4‐fuorobenzamide) hexane (BFBH) in this work. The inherent viscosities of copoly(ether ether amide)s were in the range of 0.487–0.769 dl g −1 . Following with increase of the content of HQ, the resultant polymers were converted from amorphous to crystalline. The copolymers were found to have high glass transition temperatures ( T g ) of 141.4–155.6°C and weight‐loss temperature ( T 5% ) of 423.3–434.3°C. They can be hot‐pressed into films with tensile strength of 63.3–87.6 MPa, and storage modulus over 0.8 GPa at about 150°C, indicating good thermal and mechanical property of the obtained copolymers. The results of rheological property showed that the copolymers had good melt flowability and thermal stability. Additionally, the introduction of HQ improved the corrosion resistance of copolymers, the obtained polymers HQ (60%), HQ (80%) and HQ (100%) exhibited better corrosion resistance than that of HQ (0%). Especially, HQ (80%) and HQ (100%) were insoluble in organic polar solvents such as DMSO, DMF because of their crystalline nature, indicating that they had potential to be applied to the corrosion‐resistant materials.