利用化學誘發相分離製備氧化還原感測性薄膜

Synthesis of Oxidoreduction-Sensitive Films by Chemically Induced Phase Separation Method

許怡倫(Yi-Lun Hsu)

指導教授 ： 鄭國忠

國立臺北科技大學/工程學院/化學工程研究所/碩士(2007年)

https://doi.org/10.6841/NTUT.2007.00330

摘要

本研究將4-氯甲基苯乙烯(4-chloromethylstyrene，CMS)、二乙烯苯(divinylbenzene，DVB)及2,2-偶氮雙異丁基腈(2,2-azobisisobutyronitrileAIBN)以固定莫耳比例混合，再加入環己烷(cyclohexane)當作溶劑，製備多孔性薄膜。經過加熱交聯反應後即可得到高分子薄膜，在實驗中改變溶劑環己烷的含量，可得到不同表面型態及孔隙結構的薄膜，之後將薄膜與尼可丁醇醯胺(nicotinamide)的三級胺進行改質反應預期可得到具有氧化還原特性之薄膜。本實驗利用不同濃度的還原劑(H2S2O3)、氧化劑(H2O2)、葡萄糖水溶液及去離子水(pH=7)對薄膜作接觸角量測，並比較改質前後薄膜的接觸角差異。發現改質後的薄膜具有較好的親水性，且對濃度不同的還原劑有不同的潤濕情況，高濃度的還原劑對於薄膜有較小的接觸角，低濃度還原劑則反之。還原劑、氧化劑、葡萄糖水溶液及去離子水四者中，以氧化劑對於改質後薄膜的潤濕情況為最差，其接觸角最大。但是不同濃度的氧化劑對於其接觸角變化則不顯著。預期對於氧化還原劑具有選擇性、靈敏性的高分子薄膜可以發展為智慧型材料並應用於生物或化學感測器上。

關鍵字

化學誘發相分離 ； 表面型態 ； 尼可丁醇醯胺 ； 氧化還原感測性薄膜

並列摘要

Poly (4-chloromethylstyrene - co- divinylbenzene) films were made from polymerizing 4-chloromethylstyrene crosslinking with divinylbenzene by chemically induced phase separation method. The surface morphology of films is controlled by the volume percentage of solvent. The pore size increases with increasing the amount of solvent. Poly (4-chloromethylstyrene - co- divinylbenzene) films were further modified by nicotinamide; then oxidoreduction-sensitive films were formed. The surface properties of films were characterized by surface contact angle with oxidant, H2O2, reductant, H2S2O3, glucose, and water, H2O(pH=7). The change of surface contact angle of the films were observed by an optical microscope.It indicates that the films are oxidoreduction-sensitive. The present study demonstrated a new signal responsive materials for bio- or chemical sensors.

並列關鍵字

chemically induced phase separation method ； surface morphology ； nicotinamide ； oxidoreduction-sensitive films

參考文獻

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