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聚酰胺酸N，N－二甲基十八胺是制备本身不具备两亲性的聚酰亚胺LB膜的前聚物．合成制备了均苯四酸二酐－4，4’－二胺基二苯醚（PMDA－ODA）型聚酰胺酸N，N－二甲基十八胺，研究了它单分子膜的各向异性，比较了伯胺和叔腹膜的不同，并用低角X射线衍射研究这前聚物LB膜分子的详细排列．
Polyamic acid N, N-dimethyloctadecylamine is a prepolymer for the preparation of a polyimide LB film that does not itself have amphipathic properties. The pyromellitic dianhydride-4,4’-diaminodiphenylether (PMDA-ODA) polyamic acid N, N-dimethyloctadecylamine was synthesized and its monolayer Heterosexual, comparing primary and tertiary peritoneal differences and investigating the detailed alignment of this precursor LB film molecule with low-angle X-ray diffraction.