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首页> 外文期刊>Journal of Applied Polymer Science >Application of poly(phthalazinone ether sulfone ketone)s to gas membrane separation
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Application of poly(phthalazinone ether sulfone ketone)s to gas membrane separation

机译：聚酞嗪酮醚砜酮在气膜分离中的应用

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A series of poly(phthalazinone ether sulfone ketone) (PPESK) copolymers containing different component ratios of bis(4-fluorodiphenyl) ketone and bis(4-chlorodiphenyl)sulfone with respect to a certain amount of 4-(4-hydroxyphenyl)-2,3-phthalazin-1-one were synthesized by polycondensation. Glass transition temperatures of these polymers were adjusted from 263°C to 305°C by changing the ratios of reactants. Gas permeability and selectivity of the dense membranes of the polymers for three kinds of gases (CO2, O2, and N2) were determined at different temperatures. The result indicated that the membrane of PPESK (S/K = 1/1, mol ratio) had an excellent gas separation property. Permeability of the polymer membranes for CO2, O2, and N2 was PCO(2) = 4.121 barrier, PO(2) = 0.674 barrier, and PN(2) = 0.0891 barrier, respectively. Separation factors of αO(2)/N and αCO(2)/N(2) were 7.6 and 46, respectively. New material was made into a composite membrane with silicone rubber for blocking up leaks and defects on the surface of its nonsymmetrical membrane. As a result of the test, permeability of the composite membrane was JO(2) = 7.2 × 10-6 cm3 (STP) cm-2 S-1 cm-1 Hg and JN(2) = 0.99 × 10-6 cm3 (STP) cm-2 S-1 cm-1 Hg, whereas the αO(2)/N(2) was still higher than 7. These showed that PPESKs had a bright prospect as the potential membrane material for high-temperature gas separation.
机译：相对于一定量的4-（4-羟苯基）-2，含有不同比例的双（4-氟二苯基）酮和双（4-氯二苯基）砜的一系列聚（酞嗪酮醚砜）（PPESK）共聚物通过缩聚反应合成了3-3-酞嗪-1-酮。通过改变反应物的比例，将这些聚合物的玻璃化转变温度从263℃调节至305℃。在不同的温度下，确定了聚合物的致密膜对三种气体（CO2，O2和N2）的透气性和选择性。结果表明，PPESK膜（S / K ＝ 1/1，摩尔比）具有优良的气体分离性能。聚合物膜对CO2，O2和N2的渗透性分别为PCO（2）= 4.121势垒，PO（2）= 0.674势垒和PN（2）= 0.0891势垒。 αO（2）/ N和αCO（2）/ N（2）的分离系数分别为7.6和46。新材料被制成硅橡胶复合膜，以阻止其非对称膜表面的泄漏和缺陷。测试的结果是，复合膜的渗透率为JO（2）= 7.2×10-6 cm3（STP）cm-2 S-1 cm-1 Hg，JN（2）= 0.99×10-6 cm3（ STP）cm-2 S-1 cm-1 Hg，而αO（2）/ N（2）仍高于7。这表明PPESK作为高温气体分离的潜在膜材料具有广阔的前景。

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