Summary
Glass transition temperature of polystyrene has been studied by D.S.C.. Glass transition, well known for macromolecules, has been observed up to the monomer. Measurements of the change in heat capacity ΔCp at Tg were carried out and a relationship between \(\frac{{\Delta Cp}}{T}\) and \(\overline {Dp}\) has been found. The results have been interpreted as a modification of interaction occuring at \(\overline {Dp}\)≃25.
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Claudy, P., Létoffé, J.M., Camberlain, Y. et al. Glass transition of polystyrene versus molecular weight. Polymer Bulletin 9, 208–215 (1983). https://doi.org/10.1007/BF00283709
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DOI: https://doi.org/10.1007/BF00283709