本研究首先利用帶有酸酐之poly (styrene-co-maleic anhydride)(SMA)與sodium 2-aminoethanesulfonate ( AESA-Na)進行開環反應，再與bis-(aminoprophyl) polydimethylsiloxane (X-22)進行交聯反應，更進一步的為了提升質子傳導度，再導入短鏈且疏水之diamine化合物1,4-bis(4-aminophenoxy)benzene (BAPB)與SMA進行交聯反應，控制莫耳數比 [BAPB] / [X-22] = 90 / 10，製成一系列薄膜，即為SAXB-y-90/10。由本研究發現，當導入BAPB時，將使得成膜性(film forming ability)增加並能順利提升IEC值至1.83，增加薄膜之熱穩定性與氧化穩定性。對SAXB-y-90/10而言，當IEC值增加，在全水合狀態下之質子傳導度也隨之增加，由3.6 × 10-2 Scm-1上升至7.7 × 10-2 Scm-1，藉由TEM來觀察薄膜內部狀態，高IEC值較低IEC值擁有較高的離子束(ionic cluster)密度，銜接性較佳，這也使得擁有較佳的質子傳輸通道，並從單電池組測試發現，本研究之SAXB-2.0-90/10在80℃的最大輸出功率為23 mW/cm2。

A new series of hybrid proton-exchange membranes with polysiloxane framework was designed and prepared based on poly (styrene-co-maleic anhydride, SMA) where incorporated with sodium 2-aminoethanesulfonate (AESA-Na) and bis-(aminoprophyl) polydimethylsiloxane (X-22). In this system, we added a new diamino compound of 1, 4-bis (4-aminophenoxy) benzene (BAPB) as cross-linker to increase the proton conductivity. It was found that introducing BAPB could enhance the film forming ability, increase IEC value to 1.83, and also increase the thermal stability and oxidative stability. For SAXB-y-90/10 system, the proton conductivity (under fully-hydrated) is about 3.6 × 10-2 Scm-1 to 7.7 × 10-2 Scm-1, it also shows the highest IEC value (1.83). TEM analysis can obtain the cross-section morphology, it was found that the higher IEC value causes formation of such higher ionic cluster density than lower IEC value (better connection of proton transport pathway). For SAXB-2.0-90/10, single cell test shows performance at 80 degrees Celsius of 23 mW/cm2.

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