Klaus Lederer (chemist)

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Klaus Lederer in front of the old town hall Leoben with city arms, 2005

Klaus Lederer (born May 12, 1942 in Kalwang ; † August 30, 2009 there ) was a chemist who mainly dealt with polymers and taught at the Montan University Leoben .

biography

After graduating from the secondary school in Leoben (Styria), Klaus Lederer studied with Josef Schurz and Otto Kratky at the University of Graz and initially specialized in small-angle X-ray scattering on high polymers . After completing his studies, he became department head for X-ray and structural research at the Institute for Macromolecular Chemistry at the Technical University of Darmstadt , and in 1975 he completed his habilitation in macromolecular chemistry at the Montan University Leoben . From 1974 he was a university assistant, from 1982 to 1989 head of the department for chemistry of plastics at the Institute for Chemical and Physical Technology of Plastics, then head of the newly founded Institute for Chemistry of Plastics, in the establishment and expansion of which he played a decisive role. In 1997 he was appointed full university professor for chemistry of plastics. In a difficult phase of the institute, after the retirement of older colleagues, he was the only professor in all of plastics technology and managed to keep the institute, which was involved in many groundbreaking developments.

In the last few years of his activity, albeit seriously ill, Lederer has earned merit through his work in the Polymer Competence Center Leoben , his teaching activities and the establishment of the compounding laboratory. He played a leading role in the establishment of a so-called “preferred professorship” for the synthesis of specialty and functional polymers. The work in the compounding laboratory kept him busy even after his retirement.

Lederer died on August 30, 2009 and was buried a week later in Kalwang, where Primarius Hellmut Lederer, his father, had headed the well-known accident hospital from 1929 to 1966 .

Publications (selection)

In this complex research area, most of the publications are collaborative, here is a selection. (There are also a number of essays on the situation and perspectives of the subject, published in the publications of the Montan University Leoben.)

  • with N. Aust and I. Beytollahi-Amtmann: Determination of the Distribution of Molar Mass and Comonomer Content of Medium Density Polyethylene. Comparison of Procedures with Alternative Sequence of Fractionation , 1995, in International journal of polymer analysis and characterization 1, pp. 245-245.
  • with T. Macko, G. Imrich-Schwarz, N. Aust, T. Kolmanics and T. Schwarz: Molecular Characterization of Branched Thermoplastic Polyurethanes in Dilute Solutions of N-Methyl-2-pyrrolidinone , 1996, in Macromolecular materials and engineering 241, Pp. 113-113.
  • with N. Aust: Molecular Characterization of Polyolefins , 1996, in Journal of macromolecular science / A. 33, pp. 927-927.
  • with N. Aust: A new IR detector cell with optimized optical path length for high-temperature SEC of polyolefins , 1997, in International journal of polymer analysis and characterization 3, pp. 219-219.
  • with N. Aust and M. Parth: SEC of Ultra-high Molar Mass Polymers - Optimization of the Experimental Conditions to Avoid Molecular Degradation in Case of Narrow Polystyrene Standards , 2001, in International journal of polymer analysis and characterization 6, p. 245– 245.
  • with G. Pinter, K. Schnetzinger, R. Lang, P. Zipper: Characterization of the effects of surface treatment of graphite as a filler in Polypropylene (PP) on fracture toughness under monotonic and cyclic loads , 2002, in Polymerwerkstoffe 2002 . Pp. 557-560.
  • Edited with N. Aust: Chemical and Physical Aspects of Polymer Science and Engineering , Wiley-VCH, Weinheim 2002.
  • with M. Parth and N. Aust: Distribution of Molar Mass and Branching Index of Natural Rubber from Hevea Brasiliensis Trees of Different Age by Size Exclusion Chromatography Coupled with Online Viscometry , 2002, in Macromolecular symposia 181, pp. 447-447.
  • with M. Parth and N. Aust: Studies on the Effect of Electron Beam Radiation on the Molecular Structure of Ultra-high Molecular Weight Polyethylene Under the Influence of alpha-tocopherol with Respect to Its Application in Medical Implants , 2002, in Journal of materials science / Materials in medicine , 13, pp. 917–917.
  • with N. Aust and M. Parth: The Effect of Electron Beam Radiation on the Molecular Structure of Ultra-High Molar Mass Polyethylene Used for Medical Implants , 2002, in Macromolecular symposia 181, pp. 427-427.
  • with K. Schnetzinger, G. Pinter, G. Rieß and P. Zipper: To know why is to know how - compound development with the help of simulation tools and structural studies , 2002, in VLK-News , pp. 12-14.
  • with M. Parth and N. Aust: Molecular Characterization of Ultra-high Molar Mass and Soluble Fractions of Partially Cross-linked Polyethylenes , 2003, in International journal of polymer analysis and characterization 8, pp. 175-175.
  • with N. Aust and M. Parth: Size-Exclusion Chromatography of Polymers of Ultra-high Molar Mass , 2004.
  • with N. Aust, A. Schneller and A. Holzner: Optimized molecular characterization of synthetic and natural polymers of ultra-high molar mass , 2005.
  • Accelerated aging experiments with crosslinked and conventional ultra-high molecular weight polyethylene (UHMW-PE) stabilized with alpha-tocopherol for total joint arthroplasty , 2006, in Journal of materials science / Materials in medicine 17, pp. 1333-1340.
  • Animal experiments with ultra-high molecular weight polyethylene (UHMW-PE) stabilized with alpha-tocopherol used for articulating surfaces in joint endoprostheses , 2006, in Journal of materials science / Materials in medicine 17, pp. 1341-1347.
  • with Z. Major, M. Moitzi, M. Mitterhuber, T. Schwarz and R. Lang: Development of a test and fatigue analysis methodology for elastomeric seals exposed to explosive decompression , 2006, conference volume pp. 1-18.
  • with Z. Major, M. Moitzi, M. Mitterhuber, T. Schwarz and R. Lang: Test and failure analysis for the explosive decompression of elastomer seals , 2006, in GAK (rubber fibers, plastics) . Pp. 685-694.
  • Stabilization of crosslinked ultra-high molecular weight polyethylene (UHMW-PE) -acetabular components with alpha-tocopherol , 2006, in Journal of materials science / Materials in medicine , 17, pp. 1323-1331.
  • with Y. Borja and G. Rieß: Synthesis and Characterization of Polypropylene Reinforced with Cellulose I and Cellulose II Fibers , 2006, in Journal of applied polymer science , 101, pp. 364-369.
  • with Z. Major, M. Moitzi, M. Mitterhuber, T. Schwarz and R. Lang: Test and failure analyzes methodology for elastomeric seals exposed to explosive decompression , 2006, in Rubber, fibers, plastics international . Pp. 93-100.
  • with Z. Major and R. Lang: Characterization of the fracture behavior of elastomeres under complex loading conditions , 2007, Experimental Analysis of Nano and Engineering Materials and Structures . Pp. 223-224.
  • with AR Mahendran, N. Aust and CT Vijayakumar: Preparation and Characterization of Partially Degraded High-Density Polyethylene in an Internal Mixer , 2008, in Polymer plastics technology and engineering (Polymer-plastics technology and engineering) , 47, pp. 1142–1146 .

Awards

Individual evidence

  1. ↑ Triple M , Journal of the Montan University Leoben, Edition 3/2009,
  2. ↑ Municipality of Kalwang: The Kalwang Hospital. Kalwang municipality, accessed on June 9, 2018 .
  3. ^ Klaus Lederer: Publications. Montanuniversität Leoben, accessed on June 8, 2018 .
  4. ↑ Great decoration of the country for highly deserved personalities . Article dated June 4, 2009, accessed June 9, 2018.
  5. ↑ List of winners of the Medal of Honor for Services to the Republic of Austria . Retrieved June 9, 2018.
personal data
SURNAME Lederer, Klaus
BRIEF DESCRIPTION Austrian chemist
DATE OF BIRTH May 12, 1942
PLACE OF BIRTH Kalwang
DATE OF DEATH August 30, 2009
Place of death Kalwang