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首页> 外文会议>International Conference on Multi-Functional Materials and Structures >Characterization of Polyethylenetarepthalate (PET) based Proton Exchange Membranes Prepared by UV Radiation Induced Graft Copolymerization
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Characterization of Polyethylenetarepthalate (PET) based Proton Exchange Membranes Prepared by UV Radiation Induced Graft Copolymerization

机译：用UV辐射诱导接枝共聚合制备的聚乙烯丙酮（PET）质子交换膜的表征

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摘要

Poly(ethylenetarepthalate) (PET)-based polymer electrolyte membranes (PEMs) for fuel cells were successfully prepared by grafting of allyl methacrylate (AMA) and allyl acetate separately onto PET films under UV- radiation. A consequent selective sulfonation of the grafted films was performed by chlorosulfonic acid (ClSO_3H) under milder condition. The sulfonation reaction proceeded at the grafted chains, as a result the grafted films successfully transformed to a PEM. It has been confirmed by titrimetric and gravimetric analyses as well as FTIR spectroscopy. The ion exchanges capacities (IECs) of the PEMs were studied by changing the degree of grafting and sulfonation. IECs of the PEMs prepared by grafting of allylmethacrylate (AMA) and allyl acetate onto PET were found in the ranges of 0.013-0.035 mmol/g and 0.03114-0.04125 mmol/g respectively. Water uptake, acid and hydrogen peroxide tolerance, tensile strength and proton transfer rate of the PEMs were studied. Electrical properties such as resistance, dielectric loss, and capacitance of the PEMs were also studied using impedance analyzer.
机译：通过将烯丙基甲基丙烯酸酯（AMA）和烯丙基乙酸酯分开接枝在UV-辐射下，通过将燃料电池的聚合物电解质电解质膜（PEMS）进行燃料电池的聚合物电解质电解质膜（PEMS）。随后的接枝膜的选择性磺化通过氯磺酸（CLSO_3H）在较温和的条件下进行。磺化反应在接枝链处进行，结果接枝膜成功转化为PEM。它已经通过滴定和重量分析以及FTIR光谱来证实。通过改变接枝和磺化程度来研究PEM的离子交换能力（IEC）。通过将烯丙基甲基丙烯酸甲酯（AMA）和乙酸烯丙基丙烯酸酯接枝到PET上的PEM的IEC分别在0.013-0.035mmol / g和0.03114-0.04125mmol / g的范围内发现。研究了PEMS的耐水性，酸和过氧化氢，拉伸强度和质子传递速率。还使用阻抗分析仪研究了PEM的电阻，介电损耗和电容等电性能。

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