Synthesis and characterization of sulfonated poly(phthalazinone ether sulfone ketone) for ultrafiltration and nanofiltration membranes
Synthesis and characterization of sulfonated poly(phthalazinone ether sulfone ketone) for ultrafiltration and nanofiltration membranes
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DOI：
10.1002/1097-4628(20010228)79:9
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发表时间：
2001-02
影响因子：
3
通讯作者：
Ying Dai;X. Jian;Xianming Liu;M. Guiver
中科院分区：
文献类型：
--
作者：
Ying Dai;X. Jian;Xianming Liu;M. Guiver
采用浓硫酸和发烟硫酸对新型含二氮杂萘酮结构聚芳醚砜酮（PPESK）进行磺化改性，制备出亲水性和耐污染性均得到提高的膜材料。制备并表征了磺化度为10- 300%的磺化PPESK（SPPESK）共聚物。研究了磺化反应的影响因素，确定了制备不同磺化度SPPESK的反应条件。与PPESK相比，SPPESK的亲水性有所提高，表现为与水的接触角减小。由于SO 3 H和氢键的强极性，高度磺化衍生物的玻璃化转变温度从278°C（PPESK）增加到最高323°C。比较了PPESK和SPPESK制备的超滤膜的性能。对于SPPESK非对称膜，PEG 12000截留率为98%，水通量为876 kg · m-2 · h-1。还制备了SPPESK/PPESK复合纳滤膜，并显示出高达120°C的短期操作稳定性。© 2000 John Wiley & Sons，Inc.应用聚合物科学杂志79：1685-1692，2001
Modification of poly(phthalazinone ether sulfone ketone) (PPESK) by sulfonation with concentrated or fuming sulfuric acid as sulfonation agents was carried out to prepare membrane materials with increased hydrophilicity and potentially increased fouling resistance. Sulfonated PPESK (SPPESK) copolymers, with a degree of sulfonation ranging from 10–300%, were prepared and characterized. Factors affecting the sulfonation reaction were studied, and reaction conditions for the preparation of SPPESK with different degrees of sulfonation were determined. Compared with the properties of PPESK, the hydrophilicity of SPPESK was increased, as shown by a reduced contact angle with water. The glass transition temperature was increased from 278°C (PPESK) to a maximum of 323°C for the highly sulfonated derivative, due to the strong polarity of SO3H and hydrogen bonding. Ultrafiltration membranes prepared with PPESK and SPPESK were compared. For a SPPESK asymmetric membrane, the PEG12000 rejection was 98% and the water flux was 876 kg · m−2 · h−1. SPPESK/PPESK composite nanofiltration membranes were also prepared and were shown to have short-term operational stability up to 120°C. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 79: 1685–1692, 2001