PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The polyamic acid precursor used to prepare the polyimide of this invention is derived from the reaction of an aromatic tetracarboxylic acid and an aromatic diamine and is composed of repeating units represented by the following Formula (1): ##STR1## wherein R1 is a tetravalent organic group having at least one aromatic ring and wherein each of the two carboxyl groups bonded to R1 are bonded to ca
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