ENTANGLED POLYAMIDE AND PROCESS FOR PRODUCING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a process for producing an entangled polyamide in a simple and convenient manner without necessarily requiring the rigid control of temperature, the control of solubility and a solvent or the like difficult to be handled. SOLUTION: The process for producing an entangled polyamide is a process for synthesizing a polyamide comprising a constitutional unit represented by formula (1), which comprises the first step (a) of preparing a first solution containing a 4,4'-biphenyl dicarbonyl chloride and a second solution containing a bistrifluoromethyl benzidine, respectively and the second step (b) of mixing the first solution and the second solution in the presence of a solvent which is soluble in both of the solvents used in the first solution and the second solution to deposit an entangled polyamide from the mixed solution. COPYRIGHT: (C)2008,JPO&INPIT