Abstract Recent interest in developing high performance polymeric membranes has evolved the molecular transport performance in gas separation and pervaporation. The synthesis of polymer with novel structures may improve the separation performance of a membrane. However, it always accompanies undeterminable risk such as economic costs and development duration. Polymer blends have gained interdisciplinary interest as promising modification strategy owing to the advantages of being versatile, straightforward and least expensive besides having cost- and time-effective routes in developing membranes with desirable separation performance. Despite these advantages, polymer blends have encountered the main challenges of compatibility at the molecular level, resulting in unsatisfactory membrane separation performance. The thermodynamic properties of polymer blends lead to different phase behaviors of the end products such as being miscible, immiscible and partially miscible. Due to the significant importance of compatibility in polymer blends, this review summarizes the fundamental understanding of phase behaviors, molecular interactions, separation properties and prediction models from the polymer blend membranes. Moreover, the recent progress on state-of-the-art polymer blend membranes in various energy-related applications, especially for gas separation and pervaporation will be reviewed. Lastly, the perspectives on the current challenges and future opportunities to facilitate polymer blend membranes will be discussed.

中文翻译：

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用于气体分离和渗透蒸发的聚合物混合膜的最新进展

摘要 最近对开发高性能聚合物膜的兴趣已经发展到气体分离和渗透蒸发中的分子传输性能。合成具有新型结构的聚合物可以提高膜的分离性能。然而，它总是伴随着不可确定的风险，如经济成本和开发期限。聚合物共混物作为一种有前途的改性策略，除了在开发具有理想分离性能的膜方面具有成本效益和时间效益的途径外，还具有通用性、直接性和最便宜的优势，因此作为有前途的改性策略获得了跨学科的兴趣。尽管有这些优点，聚合物共混物在分子水平上遇到了相容性的主要挑战，导致膜分离性能不令人满意。聚合物共混物的热力学性质导致最终产品的不同相行为，例如混溶、不混溶和部分混溶。由于兼容性在聚合物共混物中的重要性，本综述总结了对聚合物共混物膜的相行为、分子相互作用、分离特性和预测模型的基本理解。此外，将回顾各种能源相关应用中最先进的聚合物共混膜的最新进展，特别是气体分离和渗透蒸发。最后，将讨论促进聚合物共混膜的当前挑战和未来机遇的观点。由于兼容性在聚合物共混物中的重要性，本综述总结了对聚合物共混物膜的相行为、分子相互作用、分离特性和预测模型的基本理解。此外，将回顾各种能源相关应用中最先进的聚合物共混膜的最新进展，尤其是气体分离和渗透蒸发。最后，将讨论促进聚合物共混膜的当前挑战和未来机遇的观点。由于兼容性在聚合物共混物中的重要性，本综述总结了对聚合物共混物膜的相行为、分子相互作用、分离特性和预测模型的基本理解。此外，将回顾各种能源相关应用中最先进的聚合物共混膜的最新进展，尤其是气体分离和渗透蒸发。最后，将讨论促进聚合物共混膜的当前挑战和未来机遇的观点。将回顾最新的聚合物共混膜在各种能源相关应用中的最新进展，尤其是在气体分离和渗透蒸发方面。最后，将讨论促进聚合物共混膜的当前挑战和未来机遇的观点。将回顾最新的聚合物共混膜在各种能源相关应用中的最新进展，尤其是在气体分离和渗透蒸发方面。最后，将讨论促进聚合物共混膜的当前挑战和未来机遇的观点。