✦ LIBER ✦

Enhancing the glass-transition temperature of polyimide copolymers containing 2,2′-bipyridine units by the coordination of nickel malenonitriledithiolate

✍ Scribed by Chin-Ti Chen; Te-Shao Hsu; Ru-Jong Jeng; Hsiu-Chih Yeh

Publisher: John Wiley and Sons
Year: 2000
Tongue: English
Weight: 154 KB
Volume: 38
Category: Article
ISSN: 0887-624X
DOI: 10.1002/(sici)1099-0518(20000201)38:3<498::aid-pola15>3.0.co;2-p

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✦ Synopsis

Polyimide copolymers containing 2,2Ј-bipyridine were synthesized and characterized. The glass-transition temperatures (T g 's) of the polymers ranged from 260 to 300 °C. In contrast to most known organic chromophore-containing polyimides, the polyimide copolymers in this study showed elevated T g 's (270 -320 °C) after coordination with nickel malenonitriledithiolate inorganic chromophores.