Estimating the Dimensions of Nanocrystalline Elements of the Polyethylene Structure by Differential Scanning Calorimetry
Egorov V. M.1, Borisov A. K.1, Marikhin V. A.1, Myasnikova L. P.1, Gurieva S. A.1, Ivankova E. M.2
1Ioffe Institute, St. Petersburg, Russia
2Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg, Russia
Email: victor_egorov1@inbox.ru

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A method is proposed for calculating the dimension distribution of nanocrystalline elements of the lamellar and fibrillar morphologies of a polymer. Calorimetric data were used to calculate the distribution of the longitudinal size of these elements in lamellae and microfibrils of ultrahigh molecular weight polyethylene. The calculation results are consistent with the data obtained by the X-ray method.. Keywords: heat capacity, dimension effect, lamella, microfibril, polyethylene.
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