本研究中我們合成了一種新穎性單體4-(acryloyloxyhexyloxy) biphenyl-4'-carboxylic acid (6C) 使具有共振末端，用於感測化學品。利用市售架橋劑RM257，液晶單體RM105，手性摻混物CB15，光起始劑IRG-184與所合成之單體6C，在最佳重量比分別為40.8:34.0:23.5:0.1:1.5進行摻混，在室溫及膽固醇液晶相下經由光聚合，複印出光子晶體薄膜。利用光纖反射光譜儀偵測此光子晶體薄膜反射波段。為了探討光聚合能量對前、後基板的影響，利用掃描電子顯微鏡探討前、後兩側光聚合複印薄膜的微觀結構影響。本研究所複印的光子晶體薄膜，對雙酚A具有感測效應，而且具有分辨脂肪醇及芳香醇BPA的能力。此結果歸因於，高分子基質中的長共振末端與雙酚A中的共振結構形成相互作用，因而使複印膜具有分辨脂肪醇與芳香醇的能力。本研究製做了複印膜對BPA的校正曲線，而且由實驗結果找出了此複印膜的最低感測極限濃度。

In order to imprint cholesteric constructions, 4-(acryloyloxyhexyloxy) biphenyl-4’-carboxylic acid (6C) was synthesized. The cholesteric liquid crystal imprinted sample cells were fabricated via photo-polymerization. Commercially available liquid crystal crosslinker RM 257, RM 105 monomer, chiral dopant CB 15 and photo-initiator irgacure 184 were mixed with the synthesized monomer 6C with optimal weight ratio of 40.9, 34.0, 23.5, 0.1 and 1.5, respectively. The reflection band of the imprinted sample cells were investigated using optical fiber probe spectrometer. To study the curing energy difference at either side of sample film, both front and back side morphologies after photo-polymerization were investigated using SEM. The fabricated sample films show effective detection of bisphenol A (BPA) as well as the sensing selectivity from aliphatic alcohols. The results indicate that the fabricated sample films having conjugation terminal lead to the appearance of selectivity from aliphatic and aromatic alcohols. A BPA sensing calibration curve of the fabricated sample film was estimated and the limited minimum concentration was calculated experimentally.

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