CAJ | 학술논문

合成了一种由N-乙基苯胺和苯胺共聚的高聚物,并制备了其4种掺杂态共聚物膜.实验中在不同压力、不同进料组成下测试了共聚物膜及聚砜膜对CO_2/CH_4混合气的分离性能.实验结果表明:掺杂态不同对气体的分离性能有很大影响,其中二次掺杂态的分离系数最高,可达70,而去掺杂态的渗透速率最高,CO_2可达2.15 GPU[1 GPU=7.501×10~(-10)cm~3/(cm~2·s·Pa)],CH_4达到0.049 GPU,均高于聚砜膜和文献中报道的聚苯胺膜的值,这是由于N-乙基的引入,改变了聚合物链的柔韧性.
합성료일충유N-을기분알화분알공취적고취물,병제비료기4충참잡태공취물막.실험중재불동압력、불동진료조성하측시료공취물막급취풍막대CO_2/CH_4혼합기적분리성능.실험결과표명:참잡태불동대기체적분리성능유흔대영향,기중이차참잡태적분리계수최고,가체70,이거참잡태적삼투속솔최고,CO_2가체2.15 GPU[1 GPU=7.501×10~(-10)cm~3/(cm~2·s·Pa)],CH_4체도0.049 GPU,균고우취풍막화문헌중보도적취분알막적치,저시유우N-을기적인입,개변료취합물련적유인성.
A new copolymer was synthesized by the polymerization of N-ethylaniline and aniline, and its four states of the membranes were prepared. The permeation experiments of CO_2 and CH_4 were measured through the copolymer membranes and polysulfone membrane under different pressures and feed compositions. The experimental results show that the different states of the copolymer membranes greatly influence on gas separation behaviors. The highest separation factor of CO_2/CH_4 reaches 70 according to the redoped ones. Meanwhile, such best permeation rates of CO_2 and CH_4 are 2.15 and 0.049 GPU [1 GPU=7.501×10~(-10)cm~3/(cm~2·s·Pa)] respectively by the undoped, higher than the values of polysulfone membrane and polyaniline membrane in literature. This is because the introduction of the N-ethyl group improves the flexibility of the polymer.