DIACETYLENE GROUP-CONTAINING POLYAMIC ACID AND POLYIMIDE

摘要

PURPOSE:To obtain a polyamic acid or polyimide which can be easily crosslinked to give a molding of high rigidity, by using a specified diacetylene group-containing polyamic acid and polyimide as a component. CONSTITUTION:A diacetylene group-containing polyamic acid or polyimide represented by formulas I and II, wherein R1 and R2 are each a 1-20C bivalent organic group, Z is a 1-30C tetravalent organic group, X is OH, alkoxy, a halogen, or an amine and n=2. Examples of said organic groups desirable from the viewpoint of the availability of materials for production, cost and the rigidity of the produced polyamic acid and polyimide include groups of formulas III and IV, -CH2- and -C2H4. Examples of said tetravalent organic groups which are desirable from the viewpoint of the availability of materials for production, cost, etc., include groups of formulas V and VI. These polyamic acid and polyimide can give highly rigid, densely crosslinked moldings when they are molded by a usual polymer molding process and crosslinking them through their diacetylene groups.