Development of new surfactant for liquid surfactant membrane process.

Goto, Masahiro; Matsumoto, Michiaki; Kondo, Kazuo; Nakashio, Fumiyuki

doi:10.1252/jcej.20.157

Cited by 121 publications

(44 citation statements)

References 3 publications

(3 reference statements)

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“…The residue was recrystallized twice from ethyl acetate in a refrigerator. The monooleyl phosphoric acid (MOLPA) and dioleyl glutamic ester phosphoric acid (DOLGEPA) were synthesized by a slightly revised method as described previously (Goto et al, 1987(Goto et al, , 1990. These final products were identified by Fourier transform infrared (FTIR) spectroscopy, proton nuclear magnetic resonance ( 1 H-NMR), and elemental analysis.…”

Section: Experimental Reagentsmentioning

confidence: 99%

“…The ATR was used after removing the ethanol. Sodium di-octyl sulfosuccinate (AOC) and sodium di-oleyl sulfosuccinate (AOL) were prepared by a synthesis method described elsewhere (Goto et al, 1987). Di-2-ethylhexyl phosphoric acid (D2EHPA), di-isostearyl phosphoric acid (commercial name DP-18), and 2-ethylhexyl phosphoric acid mono(2-ethylhexyl) ester (commercial name PC-88A) delivered from Daihachi Chemical Industry Co., Ltd. were used without further purification.…”

Section: Introductionmentioning

confidence: 99%

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Design of surfactants suitable for protein extraction by reversed micelles

Goto

Ono

Nakashio

et al. 1997

Biotech & Bioengineering

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Section: Experimental Reagentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design of surfactants suitable for protein extraction by reversed micelles

Goto

Ono

Nakashio

et al. 1997

Biotech & Bioengineering

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“…23,24 Divinylbenzene (DVB, Wako Pure Chemical Industries, Ltd.) was used after a treatment with silica gel to remove the inhibitor. Other reagents were of reagent grade.…”

Section: Methodsmentioning

confidence: 99%

Lanthanoid Element Recognition on Surface-Imprinted Polymers Containing Dioleylphosphoric Acid as a Functional Host

et al. 2004

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Surface-imprinted polymers have been newly developed for the separation of lanthanoid elements: i.e. La(III), Ce(III), and Dy(III). The imprinted polymers were prepared by surface template polymerization with dioleylphosphoric acid, which exhibits a high affinity to lanthanoids, as a functional host molecule. Separation behavior of La(III), Ce(III) and Dy(III) was investigated with the imprinted polymers, and the imprinting effect of the polymers was evaluated in comparison with that of the unimprinted polymers and also with a conventional solvent extraction method for the same lanthanoid ions. The results indicate that the increase of selectivity for Dy(III) compared to the rest of the ions by the surface-imprinted polymers originated from a synergistic effect of both the affinity with the functional host molecule in nature and the size exclusion by the cavity formed on the polymer surface.

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“…22,28 Dodecylsulfate (SDS) purchased from Wako Pure Chemical Industries Co., Ltd., was used without further purification. TRIM (Kishida Chemical Co., Ltd.) was employed after treatment with silica gel to remove an inhibitor.…”

Section: Reagents and Apparatusmentioning

confidence: 99%

Metal ion imprinted microsphere prepared by surface molecular imprinting technique using water-in-oil-in-water emulsions

Yoshida

Uezu

Goto

et al. 1999

J. Appl. Polym. Sci.

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A novel metal ion imprinted polymer was prepared by the surface molecular imprinting technique. Trimethylolpropane trimethacrylate (TRIM), zinc ions, and 1,12-dodecanediol-O,OЈ-diphenyl phosphonic acid (DDDPA) were used as the matrixforming monomer, imprint molecule, and functional monomer, respectively. We have prepared Zn(II)-imprinted microspheres utilizing water-in-oil-in-water emulsions, which are spherically well defined and uniform. TRIM comprises of three polymerizable groups that serve to align the recognition sites produced on the polymer surface with better template effect. We conducted diagnostic zinc adsorption tests by using the Zn(II)-imprinted and unimprinted polymers in order to make an assessment on the effectiveness of TRIM-based and divinylbenzene-based imprinted polymers. The template effect of the TRIM-based polymer was enhanced by the high rigidity of the polymer matrix compared to that of the imprinted polymer whose matrix is divinylbenzene. In addition, the adsorption equilibrium constant was evaluated on the basis of the Langmuir analysis for the adsorption data. The method to prepare metal-imprinted microspheres on the surface of polymers crosslinked by TRIM is easy, and the adsorbent produced can be readily used without subsequent grinding or sieving.

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Development of new surfactant for liquid surfactant membrane process.

Cited by 121 publications

References 3 publications

Design of surfactants suitable for protein extraction by reversed micelles

Design of surfactants suitable for protein extraction by reversed micelles

Lanthanoid Element Recognition on Surface-Imprinted Polymers Containing Dioleylphosphoric Acid as a Functional Host

Metal ion imprinted microsphere prepared by surface molecular imprinting technique using water-in-oil-in-water emulsions

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