Shapes of the Free Volume Holes in Amorphous Polymers as Estimated by Positron Annihilation Lifetime Spectroscopy
نویسندگان
چکیده
منابع مشابه
Amorphous-amorphous transition in glassy polymers subjected to cold rolling studied by means of positron annihilation lifetime spectroscopy.
In this study, polycarbonate (PC) and polystyrene (PS) are subjected to plastic deformation by means of cold rolling and the resulting variation of the free volume and its subsequent time evolution after rolling is investigated by means of positron annihilation lifetime spectroscopy (PALS). The value of the long lifetime component that is attributed to the decay of ortho-positronium (tau(o-Ps))...
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ژورنال
عنوان ژورنال: Acta Physica Polonica B
سال: 2020
ISSN: 0587-4254,1509-5770
DOI: 10.5506/aphyspolb.51.201