Ion complex membrane and a method for producing same

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...

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95 52, 210638, 210640, 210644, 210654, 424484, 424485, 424487, 424488, 428 363, 428 369, 524 29, 524 30, 524 55, 528391, 536 181, 536 20, 536 54, 536 55, C08L 500, B01D 5322, B01D 1504

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056462050

ABSTRACT:
An ionomer for an ion complex membrane useful for the separation of water-organic solvent by osmosis or low pressure osmosis as well as by pervaporation and a method for producing ion complex membrane therefrom are disclosed. The ionomer for producing ion complex membrane can be prepared by heat polymerization of an alkyl compound having pyridyl groups such as 1,3-di(4-pyridyl) propane at both terminal ends with a dihaloalkane compound such as dibromooctane and dichloroheptane having two halogen atoms at both terminal ends or with one or two halogen atoms affixed to intermediate carbon atoms in a polar solvent such as acrylonitrile. An ion complex membrane can be produced by preparing a membrane of a polycation or polyanion in a solution casting method and dipping the membrane in a solution of polycation or polyanion for 24 hours to give an ion complex membrane. This ion complex membrane may be a single membrane or composite membrane. Composite membrane includes a plain membrane and a hollow fiber membrane. The ion complex membrane according to the present invention is useful for the separation of water-organic solvents.

REFERENCES:
patent: 4301067 (1981-11-01), Koshugi
patent: 4871461 (1989-10-01), Karakane et al.
Huang, R.Y.M. et al. "Pervaporation Separation . . . " Journal of Membrane Science, 51 (1990) 273-292.
Watson, J.M. et al. "A Study of Organic Compound . . . " Journal of Membrane Science, 49 (1990) 171-205.
Zhao, X.P. et al. "Pervaporation Separation . . . " Journal of Applied Polymer, vol. 41, 2133-2145. (1990).
Mochizuki, A. et al. "Pervaporation Separation . . . " Jurnal of Applied Polymer Science, vol. 40. 633-643 (1990).
Mochizuki, A. et al. "Pervaporation Separation . . . " Journal of Applied Polymer Science, vol. 37, 3385-3398 (1989).
Karakane, H. et al. "Separation of Water . . . " Journal of Applied Polymer Science, vol. 42. 3229-3239. (1991).

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