1963
DOI: 10.1002/ange.19630751606
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Oligomere und Pleionomere von synthetischen faserbildenden Polymeren

Abstract: Nach einer Definition des Begriffs „Oligomere”︁ wird ein Überblick über Isolierung und Synthese von ringförmigen und linearen Oligoestern, Oligourethanen, Oligoacrylnitrilen und Oligoamiden gegeben. Die Oligomeren leisten als Modellsubstanzen bei der Untersuchung vieler Eigenschaften der zugehörigen Hochpolymeren wertvolle Dienste. Dies wird an einigen Beispielen (Infrarotspektroskopie, Röntgenographie, Viscosität) gezeigt.

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Cited by 56 publications
(7 citation statements)
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“…This process was repeated several times and the combined BHET crystals were dried at 50 °C for 72 h. White needle‐shaped crystals with melting point 110 °C (lit. value27: 109–110 °C) were obtained by recrystallization from distilled water.…”
Section: Methodsmentioning
confidence: 99%
“…This process was repeated several times and the combined BHET crystals were dried at 50 °C for 72 h. White needle‐shaped crystals with melting point 110 °C (lit. value27: 109–110 °C) were obtained by recrystallization from distilled water.…”
Section: Methodsmentioning
confidence: 99%
“…Several runs using a PET grade of higher mblecular weight, Mu, = 90,000, gave results similar to those obtained with the PET of M , = 57,200. The triphenylphosphite (TPP) used for all the reactions in this work was acquired from Borg-Warner Chemicals and Aldrich Chemicals. Two model compounds were prepared: 2-hydroxyethylterephthalate (HET) (mp 180°C) according to a procedure similar to Zahn et al [2][3][4][5] and bis(2-hydroxyethy1l)terephthalate (BHET) (mp 108°C). as described by Sorenson and CampbelLG…”
Section: Introductionmentioning
confidence: 99%
“…It was shown by Zahn and Rathgeber [28] that already the low molecular 'nylon peptide' adipoyl-bis-hexamethylendiamine H 2 N(CH 2 ) 6 NH CO(CH 2 ) 4 CO NH(CH 2 ) 6 NH 2 delivers the same X-ray pattern as nylon powder. The field of oligomer research became the main area of my activities in Heidelberg and later in Aachen [29,30]. Not only were typical X-ray patterns of the crystalline domains found, but also low angle X-ray patterns of chainfolded lamellae in oligomers above a certain chain length.…”
Section: Synthesis Of Oligomers and Peptidesmentioning
confidence: 99%