Poly(3,3′,4,4′-biphenyltetracarboxylic dianhydride-co-1,4-phenylenediamine), amic acid solution , 9.5-11.5 wt.%in1-methyl-2-pyrrolidinone,electronicgrade , 【29319-22-0】
Molecular Formula: C22H14N2O6
Formula Weight: 402.36
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