Polymer, Vol.41, No.7, 2367-2372, 2000
High-temperature polycondensation of six membered dianhydrides with o-substituted aromatic diamines 1. Model compounds investigations
The high-temperature condensation of 4-benzoyl-1,8-naphthalene anhydride with 2,6-dimethylaniline and o-phenylenediamine was investigated. The structures of the compounds obtained were determined using FT-IR, W-VIS, C-13 NMR, DSC and MS. The directions of reactivities of intermediate isoimides and imides were investigated.