Abstract
Linear expansion and dilatometric measurements illustrate the occurrence of a first order transition following the normal Tg at 75°C. The first order transition for polystyrene depends upon its thermal history and the way in which the polymer is synthesized. First order transitions usually occur in the range 90° to 120°C, and the occurrence of this first order transition is independent of molecular weight and molecular weight distribution. Depolarized light measurements have been used to illustrate the changes in the first order phenomenon of polystyrene for several commercial samples as well as isothermal crystallization behavior. Annealing for even short times at 85°C changes the depolarized light trace to indicate the fusion of a second type of morphology.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
R. F. Boyer, J. Polymer Eng. Sci., 8, 161 (1968); Rubber Chem. Tech., 36, 1303 (1963).
B. Wunderlich, D. M. Bodily, and M. H. Kaplan, J. Appl. Phy., 35, 95 (1964).
P. Meares, “Polymers: Structure and Bulk Properties,” Van Nostrand, New York,(1965),Chapter 10.
L. Nielsen, “Mechanical Properties of Polymers,” Reinhold, New York, (1962), Chapter 2.
G. W. Miller, TAP VII, J. Appl. Polymer Sci., in press.
T. M. Conner, J. Polymer Sci., (A2) 8, 191 (1970).
G. W. Miller, unpublished data.
T. G. Fox & P. J. Flory, J. Appl. Phy., 21, 581 (1950).
S. Newman and W. P. Cox, J. Polymer Sci., 46, 29 (1960).
R. Boyer, J. Polymer Sci., C14, 267 (1966).
G. W. Miller, “Analytical Calorimetry,” II, R. S. Porter and J. F. Johnson, Eds., Plenum, New York, (1969), p. 397.
G. W. Miller, TAP VIII, J. Appl. Polymer Sci., in press.
G. W. Miller, J. Appl. Polymer Sci., 15, 39 (1971).
J. J. Maurer, “Analytical Calorimetry,” I, J. F. Johnson and R. S. Porter, Eds/. Plenum, New York, (1969), p. 107.
J. J. Maurer, Polymer Preprints, A.C.S. Mtg., New York, (1969)ßp.640.
G. S. Y. Yeh, Amer. Phys. Soc. Mtg., Cleveland, March, III, (1971) p. 411.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1972 Springer Basel AG
About this chapter
Cite this chapter
Miller, G.W. (1972). Thermal Analyses of Polymers. IX. First order Phenomena in Polystyrene. In: Wiedemann, H.G. (eds) Thermal Analysis. Birkhäuser, Basel. https://doi.org/10.1007/978-3-0348-5775-8_31
Download citation
DOI: https://doi.org/10.1007/978-3-0348-5775-8_31
Publisher Name: Birkhäuser, Basel
Print ISBN: 978-3-0348-5777-2
Online ISBN: 978-3-0348-5775-8
eBook Packages: Springer Book Archive