Abstract A method for slit‐hight corrections is described, in which the experimental X‐ray small angle scattering curve is represented by a cubic spline function. This method is applied on the theoretical scattering curve of spherical particles with homogenious electron‐density and on scattering curves of poly(hexamethylene adipate).

Adipate

Small-Angle Scattering

10.1002/macp.1977.021780722

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Citations (2)

Reaktionen des Pyrimidins

Angewandte Chemie (1958)

H. Bredereck R. Gompper H. Herlinger

10.1002/ange.19580701712

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Citations (14)

¹³C NMR‐Spektroskopische Untersuchungen über den Einfluß anorganischer Salze auf die Solvatation von N,N′‐Dibenzoyl‐m‐phenylendiamin in N,N‐Dimethylacetamid

Die Makromolekulare Chemie (1979)

E. von Goldammer Eckhard Schollmeyer P. Hirt Wilfried Aichele H. Herlinger

Abstract Changes of the solvation sphere of N , N ′‐dibenzoyl‐ m ‐phenlyenediamine (as a model substance for aromatic polyamides) in N , N ′‐dimethylacetamide caused by electrolytes such as LiCl, LiBr or BeCl 2 were studied by 13 C NMR chemical shift measurements. The observed variations of the chemical shift data were interpreted by a stronger interaction of the solvent molecules with the carbonamide group. The relation of the carbonyl and the amide group interaction with the solvent or the solvated cations depends on the kind of electrolyte. It is not possible to correlate the obtained results with the influence of these electrolytes upon the molecular weight of the aromatic polyamides prepared in N , N ′‐dimethylacetamide. Therefore some possible explanations are discussed.

Dimethylacetamide

Amide

10.1002/macp.1979.021800418

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Citations (1)

V. Polyadditions- bzw. Polykondensationsprodukten von Carbonyl- und Thiocarbonylverbindungen (IV)

Georg Thieme Verlag eBooks (1963)

H. Herlinger M. Hoffmann E. Husemann E. Istel Wolfgang Kern

10.1055/b-0035-116270

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Elektrokinetische untersuchungen an fasern. 6. Textilchemische anwendungsbeispiele

Die Angewandte Makromolekulare Chemie (1979)

Wilfried Aichele Eckhard Schollmeyer H. Herlinger

Abstract Zetapotentiale geben einen Einblick in die Polymer‐Flüssigkeits‐Phasengrenzfläche. Sie können jedoch nicht auf direktem Wege experimentell ermittelt werden, sondern errechnen sich aus den bei elektrokinetischen Untersuchungen erhaltenen Strömungsströmen, Strömungswiderständen und Ohmschen Widerständen mit Hilfe eines zur Beschreibung des porösen Feststoffpfropfens geeignet erscheinenden Modells. Ziel dieser Arbeit ist es, neben der Beschreibung einer experimentellen Anordnung für elektrokinetische Untersuchungen an Fasern die Anwendung der Methode auf textilchemische Fragestellungen aufzuzeigen.

10.1002/apmc.1979.050750106

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Citations (1)

Synthese von Halogenalkyl-dichlor- und Bis-(halogenalkyl)-chlor-s-triazinen

Angewandte Chemie (1964)

H. Herlinger

10.1002/ange.19640761017

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Elektrokinetische untersuchungen an fasern, 1. Theoretische zusammenhänge

Die Makromolekulare Chemie (1977)

Wilfried Aichele Eckhard Schollmeyer H. Herlinger

Abstract Some relations between electrokinetic properties are shown. First by means of phenomenological equations, the electroviscose effect is explained to be due to the electroosmotic backstreaming. It is shown that in principle the equivalence of streaming‐current‐and streaming‐potential‐methods to get zetapotentials is included in these equations. This equivalence was used first by Smoluchowski to derive his equation for the zeta‐potential for the special case of a single capillary. The equation he found concerning the relations between both zeta‐potential and streaming‐potential and streaming current between the ends of a capillary was extended by different authors to bundles of capillaries and then to plugs. It is discussed, which of the extensions are correct and which properties should be included in a so‐called “porosity factor”. From a mathematical treatment of the surface conductivity in case of capillaries it is shown that zeta‐potentials can be obtained in principle by measuring the conductivity of the system plug‐electrolyte. For this system a procedure is deduced to calculate approximately the porosity factor from measurements of the electrical resistance.

Streaming current

Zeta potential

10.1002/macp.1977.021780716

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Citations (16)

Elektrokinetische untersuchungen an Fasern, 3. Zur Beurteilung von Modellen für Faserpfropfen und der Einstellzeit von Strömungspotential und Strömungsstrom

Die Makromolekulare Chemie (1978)

Wilfried Aichele Eckhard Schollmeyer H. Herlinger

Abstract The present paper shows that the conductivity of an arrangement of fibres in a liquid depends rather insensitively on the zeta‐potential (ζ s ) calculated according to the Smoluchowski equation. The reason suggested also makes doubtful the theoretical deduction of the Fairbrother‐Mastin method to correct the porosity dependence of the ζ s ‐potential. An investigation of the porosity dependence of the three independent coefficients of the phenomenological equations of arbitrary fibres gives an explanation for the fact, that this relation is found to fit in the most cases with the porosity dependence of the ζ s ‐values. A different arrangement of fibres forming a plug shows that the use of the Smoluchowski equation cannot be expanded from capillaries to plugs using simple corrections. Finally the time dependence of the streaming current and the streaming potential is discussed and compared with the velocity of the streaming fluid and with the electrical properties of the measuring cell.

Smoluchowski coagulation equation

10.1002/macp.1978.021790320

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Citations (5)