| 초록 |
One of the key issues of proton exchange membranes (PEMs) is to get high proton conductivity and excellent mechanical properties. Hydrocarbon polymer membranes exhibit excellent chemical, thermal stabilities and high proton conductivity. However, their major problems, such as excessive water swelling and weak durability, are unsuitable to satisfy practical PEMFC operations. Cross-linking is a simple and efficient method to reducing water uptake and also enhancing mechanical properties. However, most of these methods suffer from loss of proton conductivity or the complicated preparation process problems. In this study, end group cross-linking methods via specific reaction were introduced to PEMs. The reaction has the advantages of short reaction time, a wide range of functionalities, a high yield and superior region selectivity. |
