制备了一系列异构化的聚酰亚胺取向膜,并用晶体旋转法测定了它们的预倾角.发现由芳香类异构化二酐制得的聚酰亚胺膜对预倾角影响不大,而由环己烷类顺反异构化二酐制得的聚酰亚胺膜的预倾角变化较大,且顺式的比反式的大.
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