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Polymers of intrinsic microporosity (PIMs) formed by means of dioxane-forming reactions exhibit apparent Brunauer–Emmet–Teller (BET) specific surface areas of 500– 1000 m2 g1 depending on the structure of the monomers.Hyper-cross-linked polymers are another example of porous organic polymers that can display permanent porosity because of extensive chemical cross-links that prevent the polymer chains collapsing into dense solids. The simplest networks constructed from styrenic monomers have a wide range of BET surface areas (100–2000 m2g1) that depend mainly on the degree of cross-linking and the monomers.Amorphous conjugated microporous polymers can be synthesized with BET surface areas in the range 500–1200 m2 g1 by means of Pd0/CuI-catalyzed Sonogashira cross-coupling.[19] Micropore distributions of these conjugated poly(arylene ethynylene) materials could be controlled by means of the rigid node–strut topology, in particular by the average strut length,[19a,b] and this implies that order and crystallinity are not prerequisites for precise control over porosity of materials. These previous reports strongly suggest that selection of the right monomer is a critical factor to achieve synthetic porous organic polymers with high surface area and narrow pore size distribution. |
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Polymers of intrinsic microporosity (PIMs) formed by means of dioxane-forming reactions exhibit apparent Brunauer–Emmet–Teller (BET) specific surface areas of 500–1000 m2 g1 depending on the structure of the monomers. 依靠單體結(jié)構(gòu),通過二氧己環(huán)形成反應(yīng)生成的自具微孔聚合物(PIMs) ,展現(xiàn)出的明顯布BET(魯諾(Brunauer)、埃麥特(Emmet)和泰勒(Teller))比表面積達 500–1000 m2 g1. Hyper-cross-linked polymers are another example of porous organic polymers that can display permanent porosity because of extensive chemical cross-links that prevent the polymer chains collapsing into dense solids. 多孔有機聚合物的另一個例子-超高交聯(lián)聚合物,因其廣泛的化學交聯(lián)反應(yīng),有效的阻止了高分子鏈倒塌到稠密的固體組織中,因而它們能夠展現(xiàn)出永久的多孔性。 The simplest networks constructed from styrenic monomers have a wide range of BET surface areas (100–2000 m2g1) that depend mainly on the degree of cross-linking and the monomers. 由苯乙烯構(gòu)建成的最簡單的網(wǎng)絡(luò),有廣泛的BET比表面積范圍(100–2000 m2g1),其主要取決于于交聯(lián)程度和單體分子。 Amorphous conjugated microporous polymers can be synthesized with BET surface areas in the range 500–1200 m2 g1 by means of Pd0/CuI-catalyzed Sonogashira cross-coupling. Pd0/CuI作催化劑的薗頭偶合反應(yīng),可以合成比表面積范圍為500–1200 m2 g1的非晶態(tài)共軛微孔聚合物。 [19] Micropore distributions of these conjugated poly(arylene ethynylene) materials could be controlled by means of the rigid node–strut topology, in particular by the average strut length,[19a,b] and this implies that order and crystallinity are not prerequisites for precise control over porosity of materials. 運用剛性節(jié)點-支柱拓撲(尤其是,平均支柱長度[19a,b]),可以控制這些共軛聚合材料(亞芳基,亞乙炔基)的微孔分布。這表明結(jié)晶度和順序,不是準確控制材料多孔性的先決條件。 These previous reports strongly suggest that selection of the right monomer is a critical factor to achieve synthetic porous organic polymers with high surface area and narrow pore size distribution. 此前這些報道,強烈建議,選擇正確的單體是決定性因數(shù),決定著能否成功合成,高表面積,窄氣孔的多孔有機聚合物。 |
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