Abstract:Four new poly(aryl ether sulfone)s containing naphthalene rings were synthesized from 1,5-and 2,7-bis-(4-fluorosulfonyl)naphthalene isomers with different diphenols. These polymers exhibited high glass transition temperatures and good thermal stability. The glass transition temperatures ranged from 220 to 236 o C and the 5% weight-loss temperatures were above 423 o C. As the four polymers were treated at 300 o C, the glass transition temperatures of polymer series a obviously increased and the polymers became … Show more
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