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 85. Telechelic, star-shaped and hyperbranched polyesters of β-(4-hydroxyphenyl) propionic acid
TL;DR: The trimethylsilylester of β-(4-acetoxyphenyl) propionic acid (APPA), which is easier to isolate than the free acid, was used as monomer for all polycondensations as discussed by the authors.
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Secondary structure of peptides. 4: 13C‐Nmr CP/MAS investigation of solid oligo‐ and poly(L‐alanines)
TL;DR: In this article, primary and tertiary amine-initiated polymerizations of L-alanine-N-carboxyanhydride (L-Ala-NCA) were conducted at 20 or 100°C in a variety of solvents.
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Synthesis of Eight- and Star-Shaped Poly(ε-caprolactone)s and Their Amphiphilic Derivatives
TL;DR: In this paper, Huisgen's [3+2] cycloaddition of alkyne end-capped poly(ethylene oxide) onto the azide substituents was used to construct a four-arm star-shaped copolyester, whose each arm was grafted by conversion of the chloride units into azides, and grafting of the four arms by PEO.
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Liquid-crystalline polyimides. 15. Role of conformation and donor-acceptor interactions for the nematic order of poly(ester imides)
TL;DR: In this paper, three classes of poly(ester imide)s were synthesized: (I) polyesters of N-(4-carboxyphenyl)-trimellitimide and mono- or disubstituted hydroquinones, (II) polyester of N-4-hydroxymyl)-4- hydroxypthalimide, and (III) polymers of N −carboxymethyl trimellite and various nonlinear diphenols, which revealed that two substituents per repeating unit significantly destabilize the nem
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Polymers of carbonic acid. 3. Thermotropic polycarbonates derived from 4,4'-dihydroxybiphenyl and various diphenols
TL;DR: Preparation des polymeres [OPhPhOCO-(OPh(X)OCO) m ] n (X-H,Cl,Me,Ph,m=1,2,3,4) par polycondensation interfaciale. Tous sont amorphes avec des Tg variant entre 90 and 170°C as discussed by the authors.
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