New spirodilactam polymers

Autor: John W. Fitch, Patrick E. Cassidy, Emilio Bucio, Sreenu R. Venumbaka, Hui Zhou
Rok vydání: 2006
Předmět:
Zdroj: Polymer. 47:6927-6930
ISSN: 0032-3861
DOI: 10.1016/j.polymer.2006.07.040
Popis: New polyether and poly(ether ketone)s containing the rigid 1,6-diazaspiro[4.4]nonane-2,7-dione (spirodilactam) core in the backbone are described. The polymers are soluble in common solvents from which clear, colorless films are readily cast. Excellent thermo-oxidative stability is shown by all of the systems studied with TGA stabilities up to 595 °C or 598 °C in air and argon respectively. Dielectric constants ranged from 2.53 to 3.00 and water absorption results were nil to 3.6%.
Databáze: OpenAIRE