Kinetic Studies of Bischloroimide Monomers for the Facile Synthesis of Different Molecular Architecture Poly(phthalimide-co-naphthalimide)s

摘要: A series of different molecular architecture (homo, random, block and gradient type) copolymers PI-3(a-e) were synthesized by solution polycondensation. Three bischloroimide monomers [bischlorophthalimide 2a, bischloronaphthalimide 2b bischloro (naphthalimide-phthalimide) 2c] prepared reacted with 4,4-thiobisbenzenethiol synthetic routes. The chemical reactivity these 2(a-c) was examined kinetic study model compounds N-phenyl-4-chloro-1,8-naphthalimide N-phenyl-4-chlorophthalimide using gas chromatography mass spectrometry (GC-MS). difference in utilized to design copolymer, the influence comonomers sequence on copolymer properties is investigated. copolyimides integrated excellent naphthalimide phthalimide as good organosolubility, high glass transition temperature 198-319 degrees C thermooxidative stability based 5% weight loss 492-524 480-532 nitrogen air, respectively. Gradient type PI-3 e offers a combination groups for improved thermal mechanical properties.