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Apparent reversal of physical ageing in amorphous glassy polymers by electron beam irradiation

✍ Scribed by Dale C McHerron; Garth L Wilkes


Book ID
107846758
Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
950 KB
Volume
34
Category
Article
ISSN
0032-3861

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Through time-dependent gas transport properties, we have investigated the physical aging process of amorphous glassy polymer films made from a polynorbornene. By combining the concepts of free volume and the kinetic theory of glass stabilization, it was found that the time dependence of the gas perm