Abstract
Two novel poly(aryl ether)s containingβ-naphthalene pendant group were synthesized and the structures of these polymers were confirmed by1HNMR spectroscopy. The polymers exhibited good thermal stabilities with highTgof 256°C and 274°C, respectively. The polymers are soluble in common organic solvents, such as DMAc, DMSO, CH2Cl2, and CHCl3, and can be electrospun into microfiber (1–5 µm) with lots of nanopores (<100 nm) from CHCl3solution. These fibers showed high hydrophobicity, and the contact angle of fibers is above 120°.
Highlights
Poly(aryl ether)s [1,2,3,4,5,6,7,8,9,10] have extensive applications in aerospace, aviation, electronics, telecommunications, nuclear energy, and other high technology fields because of their excellent properties, such as heat resistance, radiation resistance, impact resistance, and chemical resistance
Poly(aryl ether ketone)s (PAEKs) and poly(aryl ether sulfone)s (PAESs) are two important commercial poly(aryl ether)s. It is difficult for the standard PAEKs to be used as thin films and coating materials because of their semicrystalline property and poor solubility
As we know that the properties of compounds substituted with α-naphthalene and β-naphthalene are different, we think that if β-naphthyl groups are introduced into the poly(aryl ether) chain, the properties of the polymers may be enhanced
Summary
Poly(aryl ether)s [1,2,3,4,5,6,7,8,9,10] have extensive applications in aerospace, aviation, electronics, telecommunications, nuclear energy, and other high technology fields because of their excellent properties, such as heat resistance, radiation resistance, impact resistance, and chemical resistance. Poly(aryl ether ketone)s (PAEKs) and poly(aryl ether sulfone)s (PAESs) are two important commercial poly(aryl ether)s It is difficult for the standard PAEKs to be used as thin films and coating materials because of their semicrystalline property and poor solubility. Structure changes have focused on the introduction of semi flexible groups (such as sulfone, sulfur ether, methylene substituents) to improve the solubility and rigid groups (such as naphthalene [12,13,14], aromatic heterocyclic, anthracene) to enhance the thermal stabilities, and the incorporation of pendant alkyl or phenyl groups on to the poly(aryl ether) in the backbone of the polymeric chain [15,16,17,18,19]. These polymers could be made into fibers and the morphologies of the fibers were characterized
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