Abstract
The phase structure and dynamic mechanical properties of three polypropylene/polystyrene (PP/PS) systems of similar composition but various dispersion of the minor PS component have been examined. Two different PP/PS systems were prepared by polymerization of styrene (ST) molecularly dispersed in PP matrices (with the same initial structure) under the conditions leading to a linear or crosslinked PS component. The third PP/PS system has been prepared blending the homopolymers in the molten state. Studies of materials containingin situ polymerized PS revealed nanoscale phase separation of PS (atomic force microscopy) and pointed to the presence of physical entanglements between PS and non-crystalline phase of PP (DSC, dynamic mechanical analysis). The PS component in material prepared by melt mixing appeared to be completely phase-separated into micron-sized domains. Dynamic mechanical analysis revealed also the dependence of viscoelastic behavior of the PP/PS systems on dispersion of the PS inclusions and on the nature of the interface.
Article PDF
Similar content being viewed by others
Explore related subjects
Discover the latest articles, news and stories from top researchers in related subjects.Avoid common mistakes on your manuscript.
References
P. Milczarek, M. Pluta and M. Kryszewski, Acta Polymerica, 40 (1989) 575.
M. Pluta, P. Milczarek, A. Włochowicz and M. Kryszewski, Acta Polymerica, 42 (1991) 485.
M. Kryszewski, M. Pluta, M. Trznadel and P. Milczarek, Macromol. Chem., Macromol. Symp., 62 (1992) 191.
P. Milczarek, M. Pluta and M. Kryszewski, Colloid & Polym. Sci., 267 (1989) 209.
M. Pluta, P. Milczarek and M. Kryszewski, Colloid & Polym. Sci., 265 (1987) 490.
M. Trznadel, M. Pluta and M. Kryszewski, J. Appl. Polym. Sci., 50 (1993) 637.
M. Pluta, P. Milczarek, A. Włochowicz and M. Kryszewski, Acta Polymerica, 42 (1991) 306.
Q. Zhong, D. Inniss, K. Kjoller and V. B. Elings, Surface Science, 290 (1993) L688.
R. L. Miller, in Encyclopedia of Polymer Science and Technology, H. F. Mark, N. G. Gaylord, and N. M. Bikales, Eds., Wiley-Interscience, New York, 1966, Vol. 4, pp. 448–520.
D. Derek, D. Lath and V. Durdovic, J. Polym. Sci., 14 (1967) 659.
M. Trznadel, M. Pluta, and M. Kryszewski, J. Appl. Polym. Sci., 49 (1993) 1405.
B. W. Cherry, Polymer Surfaces, Cambridge 1981.
J. M. Crissman, J. Polym. Sci., Polym. Phys., Part A-2, 7 (1969) 389.
M. Takayanagi, M. Yoshino, and S. Minami, J. Polym. Sci., 61 (1962) S7.
R. H. Boyd, Polym. Eng. Sci., 19 (1979) 1010.
N. G. McCrum, J. Polym. Sci., Part: Polymer Letters, 2 (1964) 495.
Y. Wada and Y. Hotta, J. Polym. Sci., C, 23 (1968) 583.
M. Pluta and M. Kryszewski, Acta Polymerica, 38 (1987) 42.
D. W. Van Krevelen and P. J. Hoftyzer, ‘Properties of polymers. Their estimation and correlation with chemical structure’. Eds. Elsevier Scientific Publishing Company, Amsterdam-Oxford-New York 1976, p. 274.
Author information
Authors and Affiliations
Additional information
Dedicated to Professor Bernhard Wunderlich on the occasion of his 65th birthday
Mechanical measurements were carried out by M.P at the Max-Planck-Institut für Polymerforschung in Mainz (FRG) in Dr. T. Pakula's research group and were made possible by the DAAD Fellowship. T. K. was supported in part by the Office of Naval Research.
Rights and permissions
About this article
Cite this article
Pluta, M., Morawiec, J., Kryszewski, M. et al. Phase structure and viscoelastic properties. Journal of Thermal Analysis 46, 1061–1079 (1996). https://doi.org/10.1007/BF01983621
Issue Date:
DOI: https://doi.org/10.1007/BF01983621