本研究以胺基官能化封端苯胺三聚體（amino-capped aniline trimer, ACAT)作爲ニ胺單體，製備具有電活性的聚亞醯胺薄膜（EPI)，再混入氧化石墨烯(GO)，研究GO對電活性聚亞醯胺/氧化石墨烯複合薄膜（EPI/GO)的氣體屛障特性及電化學氧化還原行爲。利用ACAT，再選用非共平面之ニ酸酐（2，2-bis [4- (dicarboxyphenoxy) phenyl] propane dianhydride，IDPA)，混入另一種ニ胺 (4，4-oxydianiline，ODA)，以N，N-dimethylacetamide (DMAc)作爲溶劑進行一系列EPI薄膜的合成，並探討不同莫爾比ACAT含量下對於EPI薄膜的機械性質與氣體屛障研究。研究結果顯示加入絲綢緞般的GO奈米片，可進一歩降低水氣傳輸速率（WVTR)和氧氣傳輸速率（OTR)，證實在EPI薄膜中加入高長徑比（aspect ratio)的GO會迫使氣體分子擴散路徑增長，使氣體阻障性質提升。

The gas barrier properties and electrochemical redox behavior of
aniline oligomer-derivated electroactive polyimide (EPI) hybrid with
graphene oxide (GO) were investigated as a function of the content of
amino-capped aniline trimer (ACAT) and GO. A series of EPI thin films
were prepared from a non-coplanar dianhydride, [2, 2-bis [4-
(dicarboxyphenoxy) phenyl] propane dianhydride] (IDPA), and two types
of diamines, 4, 4′-diaminodiphenyl ether (ODA) and ACAT, in DMAc
solvent. The effects of ACAT contents on the mechanical and barrier
properties of EPI were investigated. In order to further reduce the
water-vapor-transmission-rate (WVTR) and oxygen-transmission-rate (OTR)
of EPI, silk-like GO nanosheets were incorporated with EPI. The high
aspect ratio of GO successfully extends the diffusion pathway of the gas
barrier in the EPI matrix and thus serves as an excellent barrier material for
EPI.