PREPARATION METHOD OF POLYIMIDE USING WATER AS A DISPERSION MEDIUM

摘要: The present invention relates to a novel synthesis method of polyimide, and more specifically, in which dianhydride compound diamine are dispersed water, reacted sealed pressure container at temperature condition 5C or above pressurized state produce polyimide. polyimide according the utilizes water as dispersion medium without generating organic-based liquid waste, is thus environmentally friendly, has advantages low cost minimizing amount residual solvent after drying, thereby ameliorating problem reduced physical properties due solvent. Further, lower reaction temperature, less steps shorter time compared conventional method. Also, synthesized higher thermal stability larger molecular weight than through