✦ LIBER ✦

Synthesis and characterization of poly(ether naphthalimide)s

✍ Scribed by Hai Bin Zheng; Zhi Yuan Wang

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 110 KB
Volume: 37
Category: Article
ISSN: 0887-624X
DOI: 10.1002/(sici)1099-0518(19990815)37:16<3227::aid-pola20>3.0.co;2-2

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✦ Synopsis

A series of new poly(ether imide)s containing the naphthalimide moiety were prepared from bis(4-fluorobenzoyl)naphthalimides and several bisphenols by aromatic nucleophilic displacement polymerization. These polyimides had inherent viscosities in the range of 0.31-1.04 dL/g in chloroform and glass transition temperatures of 283.0 -341.6°C by differential scanning calorimetry. The onset temperature for 5% weight loss for all the polymers was over 448°C, as assessed by thermogravimetry at a heating rate 10°C/min in nitrogen. In addition, these novel polyimides exhibited good solubility in organic solvents including N-methyl-2-pyrrolidone, N,N-dimethylformamide, N,N-dimethylacetamide, 1,1,2,2-tetrachloroethane and chloroform.

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