Synthesis of novel polyaryl(ether–ketones) with tert-butyl pendent groups

✍ Scribed by Mikhail G. Zolotukhin; Javier de Abajo; Julio C. Alvarez; Jose G. de la Campa; Daniel R. Rueda

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 382 KB
• Volume: 36
• Category: Article
• ISSN: 0887-624X
• DOI: 10.1002/(sici)1099-0518(199806)36:8<1251::aid-pola7>3.0.co;2-2

✦ Synopsis

Linear polyaryl(ether ketones) containing tert-butyl pendent groups were prepared from aromatic hydrocarbons and aromatic diacid chlorides, both classes of monomers containing tert-butyl pendent groups. The polymers were prepared in high yield and high molecular weight by low-temperature precipitation polycondensation in 1,2-dichloroethane. The presence of meta-oriented moieties and bulky pendent groups played a beneficial role with regard to solubility, while the thermal transitions and thermal resistance were not greatly impaired relative to conventional all para-oriented polyaryl(ether-ketones). The current polyaryl(ether-ketones) showed glass transition temperatures in the range 170-240ЊC and decomposition temperatures, as measured by TGA, of about 500ЊC.