Synthesis, properties, and gas permeation performance of cardo poly(arylene ether sulfone)s containing phthalimide side groups
Synthesis, properties, and gas permeation performance of cardo poly(arylene ether sulfone)s containing phthalimide side groups
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DOI：
10.1002/app.26930
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发表时间：
2007-11-15
影响因子：
3
通讯作者：
Wul, Yonglie
中科院分区：
文献类型：
--
作者：
Chen, Guang;Zhang, Xiaosa;Wul, Yonglie
以酚酞为原料，分别与氨水、甲胺、苯胺和4-叔丁基苯胺反应，合成了含邻苯二甲酰亚胺基团的新型双酚单体（1a-d）。以二氯二苯砜（dichlorodiphenylsulfone，DDF）为原料，对1a-d进行亲核取代反应，合成了一系列含羧基聚芳醚砜（cardo polyarylene ether sulfone，1a-d），并对其热性能、力学性能以及对H2、O2、N2和CO2的气体传输性能进行了表征。该聚合物显示出在230-296 ℃范围内的高玻璃化转变温度、在极性溶剂中的良好溶解性以及在410 ℃以上5%重量损失的优异热稳定性。最具渗透性的膜研究表明，渗透系数为1.78 barrers的O-2和13.80 barrers的CO2，具有理想的选择性。O-2/N-2对的因子为4.24，CO2/CH 4对的因子为28.75。并从溶解性、热稳定性、力学性能和气体渗透性能等方面讨论了该类聚芳醚砜的结构与性能的关系。结果表明，4-叔丁基苯基的引入明显改善了聚合物的透气性能。(c)2007 Wiley Periodicals，Inc.
Novel bisphenol monomers (1a-d) containing phthalimide groups were synthesized by the reaction of phenolphthalein with ammonia, methylamine, aniline, and 4-tert-butylanilne, respectively. A series of cardo poly (arylene ether sulfone)s was synthesized via aromatic nucleophilic substitution of 1a-d with dichlorodiphenylsulfone, and characterized in terms of thermal, mechanical and gas transport properties to H-2, O-2, N-2, and CO2. The polymers showed high glass transition temperature in the range 230-296 degrees C, good solubility in polar solvents as well as excellent thermal stability with 5% weight loss above 410 degrees C. The most permeable membrane studied showed permeability coefficients of 1.78 barrers to O-2 and 13.80 barrers to CO2, with ideal selectivity. factors of 4.24 for O-2/N-2 pair and 28.75 for CO2/CH4 pair. Furthermore, the structure-property relationship among these cardo poly(arylene ether sulfone)s had been discussed on solubility, thermal stability, mechanical, and gas permeation properties. The results indicated that introducing 4-tert-butylphenyl group improved the gas permeability of polymers evidently. (c) 2007 Wiley Periodicals, Inc.