Hans R. Kricheldorf
University of Hamburg
845 Papers
9.4K Citations
Hans R. Kricheldorf is an academic researcher from University of Hamburg. The author has contributed to research in topics: Polymerization & Condensation polymer. The author has an hindex of 57, co-authored 825 publications. Previous affiliations of Hans R. Kricheldorf include Ferring Pharmaceuticals & Bundesanstalt für Materialforschung und -prüfung.
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Papers
New polymer syntheses, 47. Synthesis of aromatic polyethers from silylated diphenols and activated dichloro‐substituted aromatics
Hans R. Kricheldorf,Petra Jahnke +1 more
TL;DR: In this paper, Bis(trimethylsilyl)bisphenol-A was condensed with 4,4′-dichlorodiphenyl sulfone under various reaction conditions.
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13C NMR sequence analysis, 15. Copolymerization of alanine‐NCA with other α‐amino acid NCAs
TL;DR: In this article, the average length of the homogeneous blocks was calculated from the signal intensities of the CO-signals, which can be assigned by comparison with the corresponding homopolypeptides.
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Polymers of carbonic acid, 4. Crystalline smectic polyurethanes derived from piperazine or 4,4′-bipiperidine and diphenols containing aliphatic spacers†
Hans R. Kricheldorf,Jens Awe +1 more
TL;DR: In this paper, 4,4′-Alkylenedioxydiphenols (3a-e), prepared from α,ω-dibromoalkanes and hydroquinone, were converted with phosgen to the corresponding dichloroformates 4a−e, which were reacted with piperazine, trans-2,5-dimethylpiperazine or 4, 4′-bipiperidine under the conditions of interfacial condensation.
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LC‐polyimides, 10. Poly(ester‐imide)s derived from pyromellitic dianhydride and ω‐amino acids and various diphenols or α,ω‐diols
TL;DR: In this paper, six dicarboxylic acids were prepared from pyromellitic dianhydride and ω-amino acids, such as glycine, 4-aminobutyric acid, 5-aminopentanoic acid, 6aminohexane, 11-aminoundecanoic acids, 12-aminododecanoicoic acid and 12-amodecanic acid.
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Secondary structure of peptides, 11. How to synthesize helical poly(L‐phenylalanine)?
TL;DR: In this article, the secondary structure of the resulting solid poly(L-phenylalanine)s was examined by means of 50,3 or 75,4 MHz 13C NMR CP/MAS spectra.
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