Výsledky vyhledávání - "W. P. Hettinger"

Specific Heat of Synthetic High Polymers. I. A Study of Polyethylene Including a Statistical Theory of Crystallite Length

Autor: N. R. Larson, J. A. Wethington, Malcolm Dole, W. P. Hettinger

Publikováno v: The Journal of Chemical Physics. 20:781-790

Data are given for the specific heat of granular, sheet, annealed, and drawn samples of polyethylene from −20° to 200°C. From the data, changes in enthalpy and entropy between these temperatures have been calculated and an estimate made of the fr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::086724b4906c809817ad536852d2fe69
https://doi.org/10.1063/1.1700567

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Calorimetry of High Polymers. I. Automatic Temperature Recording and Control of Adiabatic Jackets

Autor: W. P. Hettinger, J. A. Wethington, Norman Larson, Malcolm Dole, A. E. Worthington

Publikováno v: Review of Scientific Instruments. 22:812-817

This paper describes an adiabatic aneroid calorimeter for the measurement of the specific heat of high polymers over the temperature range −20 to 300°C.The temperature of its adiabatic jacket can be automatically recorded and, for the most part, a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cd5bd0d8bde35b663f18707173a22012
https://doi.org/10.1063/1.1745769

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