【摘要】 通过用扫描电镜对活性添加物膜的结构观察知，它们是一类非均相的共混微孔膜。活性添加物的存在提高了膜对各种气体的选择吸附性和透气性，特别对于气体Ｈ＿２，ＣＯ的分离是一种很有发展前途的新型气体分离膜。更多还原

【Abstract】 According to the examination of SEM. the membranes with the active additives andpo lysulfone are identified as heterogtneo usly mixed microporous membranes． The selectiveadsorption ability of active additives makes these membranes present better selectivity andhigh permeation rate to gases（H₂， CO，N₂）．they are sespecially satisfied with the separa-tion of H₂-CO.更多还原