发明授权
US4847350A Preparation of aromatic heterocyclic polymers 失效
芳香杂环聚合物的制备

Preparation of aromatic heterocyclic polymers
摘要:
Rapid process for the formation of heterocyclic aromatic polymers by contacting one or more appropriate multifunctional aromatic compounds, such as a diaminobenzenediol, a terephthaloyl halide and/or an aminohydroxybenzoic acid, with a sulfonic acid and a dehydrating agent.
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