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A series of polyimides (PI) based on two dianhydrides, namely 5-(2,5-dioxotetra-hydro-3-furanyl)-3-methyl-3-cyclohexene-1,2-dicarboxylicanhydride (DOCDA) and benzophenonetetracarboxylicdianhydride (BTDA), and an aliphatic diamine, namely 1,6 diaminohexane (DAH), have been obtained by solution polycondensation reaction, followed by thermal ring closure of the resulting polyamic acids. The chemical...
Soluble imide type polymers containing ether linkages, aliphatic sequences or highly polar nitrile or carboxy pendent groups have been obtained by solution polycondensation of aromatic diamines with various anhydrides such as Epiclon, maleic anhydride or oxydiphthalic dianhydride, followed by thermal ring closure of the resulting polyamic acids. The structures of these polymers were identified by...
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