【摘要】 概述了由不同原料、途径制备均苯四甲酸二酐的方法及其应用前景。着重介绍了由均四甲苯、偏三甲苯等为原料合成均苯四甲酸二酐的方法。更多还原

【Abstract】 Preparation of pyromellitic dianhydride (PMDA) from various raw materials by different processes is reviewed with the emphasis on the synthesis and application of PMDA from such feedstocks as durene,1,2,4-trimethylbenzene,etc.更多还原