摘要：Carbon molecular sieve membranes(CMSMs)are a class of porous membranes inherited with excellent thermal stability,high tolerance and superior mechanical *** to their nanoporous structures,CMSMs usually hold significant potential for gas separation ***,hyper-crosslinked ionic polymer(HIP)membranes possess a highly crosslinked nitrogen-rich framework,high thermal stability together with exceptional mechanical strength,making them excellent precursors for the CMSMs *** pyrolysis of HIP membranes,the resulting CMSMs featured with nitrogen functional sites exhibit strong interactions with CO_(2),which significantly reduces the CO_(2)permeability while other gas molecules continue to flow through the nanoporous *** resultant CMSMs exhibited excellent H_(2)/CO_(2)selectivity with values of 10.75 and 7.09,together with ultra-high H_(2)permeability of 3052 and 9181 barrer,respectively,surpassing the Robeson upper *** preparation route towards CMSMs with high nitrogen content from HIP can significantly enrich the rational design and synthesis strategies of high-performance gas separation CMSM materials.

摘要：渗透性和离子筛分能力是决定纳滤膜分离性能的主要指标.扩大渗透分离层的表面积不仅是提升膜通量的有效途径,还保持了盐的截留效果.受氨基/亚胺与酰氯缩合交联形成致密的聚酰胺网络的启发,我们提出了一种策略:将多孔的卟啉-苯胺共轭微孔聚合物(PACMP)接枝到聚酰胺膜上,从而增大纳滤膜的分离表面积.通过一步界面聚合,制备了一种超渗透的共轭微孔聚合物-聚酰胺复合膜(CPCMs),其水通量为61.8 L m^(−2) h^(−1),对盐(Na_(2)SO_(4))的截留率高于91.6%.此外,由于PACMPs中卟啉基团产生的活性氧,原位光激发单线态氧1O2可杀死98.5%的大肠杆菌和99.7%的金黄色葡萄球菌,从而赋予了CMP-聚酰胺复合膜良好的抗菌性.

摘要：共轭微孔聚合物(CMPs)因其比表面积大和分子结构可设计等性优点在CO_(2)吸附领域具有巨大潜力,并且极性杂原子的引入可进一步提高其吸附CO_(2)的性能。以三(4-氨基苯基)胺(TA)和3,5-二溴苯硼酸(BA)为单体,通过Buchwald-Hartwig偶联反应,得到富含N和B杂原子的硼酸基共轭微孔聚合物(BACMPs),通过改变单体反应比例调控BACMPs孔径。通过傅里叶变换红外光谱、热重分析、扫描电子显微镜以及N 2吸脱附测试表征BACMPs的结构和形貌,并对BACMPs进行CO_(2)吸脱附测试以探究其CO_(2)吸附性能。结果表明,制备的BACMPs具有大量微孔,Brunauer-Emmett-Teller比表面积最高可达475 m 2/g,并且在压力为100 kPa和温度为273 K条件下BACMPs吸附的CO_(2)质量分数最高可达8.53%,有望应用于CO_(2)吸附领域。