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The size and number of local free volumes in polypropylenes: A positron lifetime and PVT study |
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| Authors: | D. Kilburn D. Bamford G. Dlubek J. Pionteck M. A. Alam |
| Abstract: | The temperature dependence of the mean size of local free volumes in an amorphous atactic (aPP) and a semicrystalline syndiotactic polypropylene (sPP), and an amorphous ethylene‐propylene copolymer (E‐co‐P48) has been studied. Pressure‐volume‐temperature (PVT) experiments were performed for aPP, from which the hole fraction h of the Simha‐Somcynsky theory and the number density of holes were estimated. © 2003 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 41: 3089–3093, 2003 |
| Keywords: | thermal properties glass transition poly(propylene) |