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- W2068711917 abstract "Die Polyaddition von Bisphenol-A-diglycidylether (DGEBA) an Anilin führt bei DGEBA-Überschuß zu telechelen Prepolymeren mit Glycidylendgruppen. n̄ hängt vom Molverhältnis der Monomere ab und wird von 0,1 bis 5,0 variiert. Die chemische Struktur der Prepolymere wird durch C,H,N-Analysen, IR-,1H- und 13C-NMR-Spektren belegt, und ihre Mn -Werte werden durch Dampfdruckosmometrie gemessen. Mittels Umkehrphasen-HPLC an Lichrosorb RP-18 wird durch Anwendung von Wasser/Acetonitril-Gradienten-Elution eine ausgezeichnete Auftrennung der Prepolymere in mehr als 20 Oligomer-Fraktionen erreicht. Telechelic prepolymers with glycidyl endgroups were prepared by copolymerization of diglycidyl ether of bisphenol A (DGEBA) and aniline under the condition of an excess of DGEBA. n̄ depends on the molar ratio of the monomers and was varied between 0.1 and 5.0. The chemical structure of the prepolymers was determined by C, H, N elemental analysis, IR and 1H, 13C-NMR spectroscopy. Mn was measured by vapour pressure osmometry. By means of reversed-phase HPLC using a Lichrosorb RP-18 column with water/acetonitrile gradient elution mode an excellent separation of the prepolymers into up to 20 oligomer fractions was achieved." @default.
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- W2068711917 date "1986-05-01" @default.
- W2068711917 modified "2023-09-23" @default.
- W2068711917 title "Hochdruckflüssigkeitschromatographie (HPLC) von DGEBA-Anilin-Prepolymeren. Unvernetzte Epoxid-Amin-Additionspolymere. 10" @default.
- W2068711917 doi "https://doi.org/10.1002/actp.1986.010370505" @default.
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