Dianhydrides bis (naphthalic), their process of production, poly (naphtoylenebenzimidazoles) based on these dianhydrides bis (naphthalic) and method of obtaining these polymers

摘要

The invention relates to the organic synthesis, the more precisely, the dianhydrides bis (naphthalic), their process of production, the poly (naphtoylenebenzimidazoles) based on these dianhydrides bis (naphthalic) and the process for obtaining these polymers. / p & & p & the dianhydrides bis (naphthalic) are compounds of general formula: & br / (see appended drawing in bopi) & br /