Du Naiying, Robertson Gilles P, Pinnau Ingo, Thomas Sylvie, Guiver Michael D
Institute for Chemical Process and Environmental Technology, National Research Council of Canada, Ottawa, Ontario K1A 0R6, Canada.
Macromol Rapid Commun. 2009 Apr 20;30(8):584-8. doi: 10.1002/marc.200800795. Epub 2009 Mar 9.
A series of new copolymers with high molecular weight and low polydispersity, prepared from tetrahydroxydinaphthyl, tetrahydroxyspirobisindane, and tetrafluoroterephthalonitrile monomers, prevent efficient space packing of the stiff polymer chains and consequently show intrinsic microporosity. One copolymer, DNPIM-33, has an excellent combination of properties with good film-forming characteristics and gas transport performance, and exhibits higher selectivity than the corresponding spirobisindane-based homopolymer PIM-1 for gas pairs, such as O(2) /N(2) , with a corresponding small decrease in permeability. This work demonstrates that significant improvements in properties may be obtained through development of copolymers with intrinsic microporosity (CoPIMs) that extends the spectrum of high-molecular-weight ladder structures of poly(dibenzodioxane)s.
由四羟基二萘基、四羟基螺双茚满和四氟对苯二甲腈单体制备的一系列具有高分子量和低多分散性的新型共聚物，可防止刚性聚合物链进行有效的空间堆积，因此呈现出固有微孔性。一种共聚物DNPIM-33具有优异的性能组合，具备良好的成膜特性和气体传输性能，对于诸如O₂/N₂等气体对，它比相应的基于螺双茚满的均聚物PIM-1表现出更高的选择性，同时渗透率相应地略有降低。这项工作表明，通过开发具有固有微孔性的共聚物（CoPIMs）可实现性能的显著改善，这种共聚物扩展了聚（二苯并二恶烷）的高分子量梯形结构范围。
