本篇論文利用4,4'-oxydianiline (4,4'-ODA)和2,2'-bipyridine (BPy)為起始物合成新型二胺單體2-(2-bipyridinyl)-4,4'-oxydianiline (BPyODA(6))，再將BPyODA(6)與三種不同的商用品二酸酐以一步法合成新型聚醯亞胺系列(BPyODA系列)。BPyODA系列的聚醯胺酸固有黏度(inherent viscosity)為1.77~1.98 dL/g (0.5 g/dL, NMP, 35 ℃)。BPyODA系列的聚醯亞胺展現良好的熱穩定性，其玻璃轉移溫度介於279~331 ℃，5%熱重損失之熱裂解溫度(Td5%)介在441~522 ℃，10%熱重損失之熱裂解溫度(Td10%)介在462~554 ℃，在800 ℃時之熱殘餘重介在54~63 %。
將PI7a與PI7b進行Cu2+、Ni2+動力與等溫吸附實驗，實驗結果顯示，反應一天後，PI7a對Cu2+、Ni2+的吸附量分別為7.63及9.98 mg/g，PI7b對Cu2+、Ni2+的吸附量分別為22.24及10.56 mg/g，且PI7a與PI7b重複單元吸附Cu2+及Ni2+之效率則為PI7b較佳。動力學實驗結果，PI7a、PI7b與Cu2+之吸附行為，以擬二級動力式所模擬出的結果較佳，與Ni2+之吸附行為則以擬一級動力式所模擬出的結果較佳。等溫實驗結果，因Langmuir isotherm之R2值比Freundlich isotherm來的高，故以Langmuir isotherm較符合等溫吸附行為。添加5 mL正丙醇可使系統界面張力之能障降低、增加整體親水性，進而提升吸附容量。競爭吸附實驗中，溶液中含有兩種金屬離子的情況下，其吸附量依序：Cu2+大於Ni2+。

In this study, a new diamine monomer 2-(2-bipyridinyl)-4,4'-oxydianiline (BPyODA (6)) were synthesized by using 4,4'-oxydianiline (4,4'-ODA) and 2,2'-bipyridine (BPy) as starting materials. A series of novel polyimides (BPyODA series) were prepared from BPyODA (6) with various commercially aromatic dianhydrides by one steps method. These polyimides had inherent viscosities from 1.77 to 1.98 dL/g (0.5 g/dL, NMP, 35 ℃). They also exhibited good thermal stability, without any significant weight loss up to 400℃. These polyimides had high glass transition temperatures in the range of 279-331 ℃. The decomposition temperatures of these polyimides at 5% weight loss under nitrogen were in the range of 441-522 ℃. The decomposition temperatures of these polyimides at 10% weight loss under nitrogen were in the range of 462-554 ℃, and these residual weight percentage at 800℃ were 54-63%.
The kinetic and isotherm adsorption experiments were conducted by using PI7a and PI7b as adsorbents. The adsorption kinetics was found to follow the pseudo-second-order kinetic model(for Cu2+) and the pseudo-first-order kinetic model(for Ni2+) respectively. The equlilbrium data were best represented by Langmuir isotherm.The uptake capacities of PI7a obtained varied between 7.63 mg (for Cu2+) and 9.98 mg (for Ni2+) per one gram of polymer；The uptake capacities of PI7b obtained varied between 22.24 mg (for Cu2+) and 10.56 mg (for Ni2+) per one gram of polymer.The addition of a small amount of propanol decreases the interfacial tension of system drastically and increases the capacity of adsorption.The result of competitive adsorption test showed that Cu2+ is more dominant than Ni2+.

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