發明
中華民國
104130799
I 537319
多孔性高分子複合薄膜、其製造方法及應用其偵測化學物質蒸氣之方法與偵測器
國立中興大學
2016/06/11
此研究以可捲揚式連續性製程之刮刀塗佈技術,自組裝三維具規則排列孔洞之多孔性乙氧基化三羥甲基丙烷三丙烯酸酯 (ETPTA)高分子薄膜,並於其規則排列孔洞表面塗佈具均一膜厚之甲基丙烯酸-2-羥基乙酯 (HEMA)高分子,以獲多孔性HEMA/ETPTA高分子複合薄膜,並其上具三維規則排列孔洞可繞射特定波長之入射光。實驗發現此高分子複合薄膜所繞射之入射光波長可於短時間隨環境蒸氣壓而改變,並對乙醇蒸氣和水蒸氣具選擇性,且所繞射之入射光波長偏移值可以孔洞尺寸與所塗佈HEMA高分子厚度調控,證實此高分子複合薄膜可為化學蒸氣檢測之用。 This research reports a scalable and roll-to-roll doctor blade coating technology for self-assembling flexible self-standing macroporous ethoxylated trimethylol-propane triacrylate (ETPTA) films with crystalline arrays of air cavities. The pores of macroporous films can be coated with 2-hydroxyethyl methacrylate (HEMA) to create HEMA/ETPTA composite macroporous films. The optical measurements and theoretical predications reveal the as-prepared macroporous films exhibit optical diffraction by the three-dimensional ordered air cavities based on the Bragg's diffractive theory. Capillary condensation of a condensable vapor leads to the redshift of the optical stop bands, which demonstrates vapor detection is enabled by the as-prepared macroporous polymer films. Besides, this research further reveals that the extent of redshift increases with the thickness of coated HEMA film and the pore size of the macroporous films.
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