Abstract
A new diamine was prepared via two successive reactions: 6-chloronicotinoyl chloride was reacted with 4,4′-oxydianiline and the obtained dichloro product was reacted with 5-amino-1-naphthol. A novel series of poly(ether amide)s containing flexible ether groups, pyridine polar units, and bulky naphthyl units was prepared through polycondensation reactions of the diamine with four diacids via three different routes. Polyamides were prepared by phosphorylation reaction, indirect diacid chloride reaction, and using ionic liquid medium. The effect of reaction conditions on the physical and thermal properties of the polymers such as solution viscosity, solubility, crystallinity, thermal stability, and thermal behavior were investigated.
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