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Digitale Medien

Polymeric reagents (1980)

Kraus, M. A. ; Patchornik, A.

Hoboken, NJ : Wiley-Blackwell

Journal of Polymer Science: Macromolecular Reviews 15 (1980), S. 55-106

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ISSN: 0076-2083

Schlagwort(e): Chemistry ; Polymer and Materials Science

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie , Physik

Zusätzliches Material: 1 Tab.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/pol.1980.230150103

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Digitale Medien

The effect of low molecular weight additives on the properties of aromatic polyamide membranes (1979)

Kraus, M. A. ; Nemas, M. ; Frommer, M. A.

New York, NY [u.a.] : Wiley-Blackwell

Journal of Applied Polymer Science 23 (1979), S. 445-452

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ISSN: 0021-8995

Schlagwort(e): Chemistry ; Polymer and Materials Science

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie , Maschinenbau , Physik

Notizen: Salts contained in aromatic polyamide solutions were found to have a considerable effect on the performance and structure of reverse osmosis membrannes cast from these solutions. As in cellulose acetate membranes, certain salts greatly increase membrane fluxes without a detrimental effect on rejection. Highly dissociated salts such as LiClO4 or Mg(ClO4)2 exert a stronger influence than the commonly used LiCl. With mixtures of different salts, stronger effects may be obtained than with a single additive. Many experimental facts indicate that the “salt effect” in aromatic polyamide membranes is due to a general effect on solvent activity and thus on the kinetics and equilibria associated with evaporation and coagulation process.

Zusätzliches Material: 5 Ill.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/app.1979.070230214

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