Research Initiation Award: Chemical Modification of Polyquinoline Structure for Characterization of Gas Transport Properties for Membrane Applications

摘要：为了研究聚合物膜和膜的分子结构与性能之间的关系，将系统地改变一系列多喹啉类化合物的化学结构。结构变化将改变节段间和节段内对链迁移的阻力、对链堆积的抑制和自由体积的分布。将测量这些刚性高热阻聚合物的物理性质，特别是气体输运性质。高分子薄膜是食品包装和微电子工业中重要的阻隔材料。膜正在迅速发展，并用于燃料生产设施以及医院和研究机构的气体分离。

CTS-9308526 University of Arkansas Maria R. Coleman ABSTRACT Chemical structure will be systematically varied in a series of polyquinolines in order to investigate relationships between molecular architecture and properties of polymeric films and membranes. Structural changes will modify intersegmental and intrasegmental resistances to chain mobility, the inhibitions to chain packing and the distribution of free volume. Physical and, particularly, gas transport properties of these rigid, high thermal resistance polymers will be measured. Polymeric films are important barrier materials in food packaging and in the microelectronics industries. Membranes are rapidly being developed and used in production facilities for fuels and in the separation of gases for hospitals and research institutes.