Study on the Selective Separation by Poly- (fumarate) Thin Films

聚富马酸酯薄膜选择性分离的研究

• 批准号: 04650723
• 负责人: SHIGEHARA Kiyotaka
• 金额: $ 0.38万
• 依托单位: Tokyo University of Agriculture and Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1993
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-04650723/
• 关键词: Gas Permeability; Gas Separation; Oxygen Enrichment; Selective Permeation; LB Film; Poly(fumarate); Gas Permeability; Gas Separation; Oxygen Enrichment; Selective Permeation; LB Film; Poly(fumarate)

Fumarate homo- and binary random copolymers of bulky substituents such as, di(isopropy1), di(tert-buty1), di(cyclohexy1), hexafluoroisopropy1 isopropy1, and bis(beta, beta-dimethy1phenety1) [abb., DiPF, DtBF, DcHF, F_6iP and BMPEF, resp.] were synthesized and thier thin film properties as for [O_2/N_2/]-separation or [water/alcohol]-separation material were studied.Among the binary random copolymers prepared from the either two monomers of DiPF, DtBF and DcHF, DtBF-based copolymers with DtBF content of 80mo1% showed highest gas-permeation constants [P_<02> and P_<N2>] and separation factor, alpha. It is noteworthy that P_<02> of more than 10^<-8> cm^3(STP)cm/cm^2・s・cmHg and alpha of more than 4.0 can be attained by such simple copolymerization as the random introduction of the foreign units to the DtBF-based polymer decreased the crystallinity.Although the attempts to [water/alcohol]-separation by pervaporation method were not successful due to the swelling of films, similar examination by "evapomeation" method revealed that PDiPF films are quite useful for concentrating alcohol especially when the concentration of alcohol is about 10%. PF_6iP or PBMPEF, hopefully more advanced evapomeation material, were not suitable for filming due to their stiffness. Further study to utilize LB-filming process will be continued.

Fumalate homo- and binary random copolymers of bulky subtituents such as, di(isopropy1), di(tert-buty1), di(cyclohexy1), hexafluoroisopropy1 isopropy1, and bis(beta, beta-dimethyl1phenety1) [abb., DiPF, DtBF, DcHF, F_6iP and与[O_2/N_2/] - 分离或[水/酒精]分离材料合成的bmpef，分别是合成的。 [p_ <02>和p_ <n2>]和分离因子，alpha。值得注意的是，p_ <02>超过10^<-8> cm^3（stp）cm/cm^2 s cmHg和alpha and alpha and alpha and alpha and alpha超过4.0以上，可以通过简单的共聚，例如基于dtbf的聚合物在dtbf中随机引入dtbf par的方法。对于薄膜的肿胀，类似的“蒸发”方法表明，PDIPF膜对于浓缩酒精非常有用，尤其是当酒精的浓度约为10％时。 PF_6IP或PBMPEF，希望更先进的蒸发材料由于其刚度而不适合拍摄。进一步的研究将继续使用LB-Filmming过程。

项目成果

K.Shigehara 他3名: "Property of LB Films of Fumarate(Co)polymers" Die Makromol.Chem.(1994)

K.Shigehara 和其他 3 人：“富马酸酯（共）聚合物的 LB 薄膜的性能”Die Makromol.Chem.(1994)

K.Shigehara, R.Tomokiyo, N.Kaiya, N.Amaya: ""Property of LB Films of Fumarate (Co) Polymers"" Makromol.Chem.(in print). (1994)

K.Shigehara、R.Tomokiyo、N.Kaiya、N.Amaya：“富马酸（共）聚合物 LB 薄膜的特性”Makromol.Chem.（印刷中）。

K.Shigehara 他3名: "Selective Permeation of Poly(fumarate)thin Films" Die Makromol.Chem.(1994)

K.Shigehara 和其他 3 人：“聚（富马酸盐）薄膜的选择性渗透”Die Makromol.Chem.(1994)

K.Shigehara, R.Tomokiyo, N.Kaiya, N.Amaya: ""Selective Permeation of Poly (fumarate) Thin Films"" Makromol.Chem.(in print). (1994)

K.Shigehara、R.Tomokiyo、N.Kaiya、N.Amaya：“聚（富马酸盐）薄膜的选择性渗透”Makromol.Chem.（印刷中）。