Ortho-Positronium Annihilation and the Glass Transition of Nylon 6
- 1 February 1972
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 43 (2) , 737-739
- https://doi.org/10.1063/1.1661191
Abstract
The mean life τ2 or ortho‐positronium annihilating in samples of Nylon 6 both dried and containing 0.5% of H2O has been measured as a function of temperature from 15°C up to 100°C. A sudden change of τ2 in the lifetime‐vs‐temperature curve was found at the glass‐transition temperature. The main glass transition for the dry sample is determined to be 50°C and for the sample containing water, 33°C. The Tg measured by this method is lower than that measured by other methods. This agrees well with the result for polystyrene observed by Stevens and Mao.This publication has 10 references indexed in Scilit:
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