摘要
研究了不同烃基乙烯基亚砜接枝聚乙烯醇（ＰＶＡ－ＲＶＳＯ，Ｒ＝Ｍｅ，Ｅｔ，ｔ－Ｂｕ，Ｐｈ）膜对纯ＳＯ２、Ｎ２的透过性能以及ＳＯ２／Ｎ２混合气体的分离性能．结果表明上述膜对ＳＯ２具有高的选择性．对不同烃基乙烯基亚砜接枝膜进行了比较．
our kinds of alkyl vinyl sulfoxides(RVSO, R = Me, Et, t-Bu, Ph)were synthesized and reacted with poly(vinyl alcohol) in the presence of alkali catalyst by the Michael addition reaction to prepare alkyl vinyl sulfoxide grafted poly(vinyl alcohol)(PVA-RVSO). Permeabilities of various alkyl vinyl sulfoxide grafted poly (vinyl alcohol) membranes for pure SO,, N, and SO2-N2 mixture gas were studied. The results showed that the membranes exhibited high permeability and selectivity for SO,, SO, permeability and separation factor of these polymer memberanes increased markedly as the size of the alkyl group of vinyl sulfoxide increased. The effects of sulfoxide content of the polymer and the pressure on the SO2 permselectivity of the membranes also were examined.
出处
《高分子学报》
CSCD
北大核心
1995年第4期404-408,共5页
Acta Polymerica Sinica
基金
浙江省科学技术委员会基金
关键词
二氧化硫
乙烯基亚砜
聚乙烯醇
分离膜
Sulfur dioxide
Sulfoxide
Poly(vinyl alcohol)
Separation membrane
Selective permeation
