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Herman Francis Mark

(1895-1992)
Austrian American chemist
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Herman Francis Mark (May 3, 1895, Vienna – April 6, 1992, Austin, Texas) was an Austrian-American chemist regarded for his contributions to the development of polymer science. Mark's x-ray diffraction work on the molecular structure of fibers provided important evidence for the macromolecular theory of polymer structure. Together with Houwink he formulated an equation, now called the Mark–Houwink or Mark–Houwink–Sakurada equation, describing the dependence of the intrinsic viscosity of a polymer on its relative molecular mass (molecular weight). He was a long-time faculty at Polytechnic Institute of Brooklyn. In 1946, he established the Journal of Polymer Science.

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Born
3 May 1895
Vienna
Died
6 April 1992 (aged 96)
Zodiac Taurus
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