Abstract
The effects of nucleating agent on nonisothermal crystallization were examined for syndiotactic polystyrene (SPS) using Differential Scanning Calorimetry (DSC). The crystallization peak temperature Tc, the crystallization rate parameter (CRP), the enthalpy of crystallization and melting, and the recrystallization behavior were compared between organic (DMBS, 1,3,2,4-dis-5-(3,4-dimethyl benzylidene) sorbitol) and inorganic (talc) nucleating agents. Both of the nucleation agents promoted the crystallization rate of SPS until some critical concentration of about 3,000 ppm. DMBS worked more effectively as a nucleating agent than talc, although the Tc showed lower level in SPS/DMBS than SPS/talc.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
Cimmino, S., Di Pace, E., Martuscelli, E. and Silvestre, C., “Growth of Spherulites with Positive and Negative Birefringence in Syndiotactic Polystyrene/Poly(vinyl methyl ether) Blend Films,”Polymer Communications,32, 251 (1991).
Dias, M. L., “Styrene, Stereospecific Polymerization,” Polymeric Materials Encyclopedia, Salamone, J. C., et al. ed., CRC Press, Inc., Boca Raton,10, 8014 (1996).
Gianotti, G. and Valvossori, A., “Fusion Enthalpy and Entropy of Syndiotactic Polystyrene,”Polymer,31(3), 473(1990).
Guerra, G., Vitagliano, V.M., De Rosa, C., Petraccone, V. and Corradini, P., “Polymorphism in Melt Crystallized Syndiotactic Polystyrene Samples,”Macromolecules,23, 1539 (1990).
Ishihara, N., Kumamoto, M. and Uoi, M., EP 210615 (1986a).
Ishihara, N., Seimiya, T., Kurmoto, M. and Uoi, M., “Crystalline Syndiotactic Polystyrene,”Macromolecules,19, 2464 (1986b).
Lopez, L. C., Cieskinski, R. C., Putzig, C. L. and Wesson, R. D., “Morphological Characterization of Injection Moulded Syndiotactic Polystyrene,”Polymer,36(12), 2331 (1995).
Mitsuishi, K., “Polypropylene (Nucleating Agents),” Polymeric Materials Encyclopedia, Salamone, J. C., et al. ed., CRC Press, Inc., Boca Raton,9, 6607 (1996).
Sweet, G. E. and Bell, J. P., “Multiple Endotherm Melting Behavior in Relation to Polymer Morphology,”J. Polymer Sci., Part A-2,10, 1273 (1972).
Ulcer, Y., Cakmak, M., Miao, J. and Hsiung, C. M., “Structural Gradients Developed in Injection-Moulded Syndiotactic Polystyrene (SPS),”J. Appl. Polym. Sci.,60, 669 (1996).
Wesson, R. D., “Melt Crystallization Kinetics of Syndiotactic Polystyrene,”Polym. Eng. & Sci.,34(14), 1157 (1994).
Zhang, R., Zheng, H., Lou, X. and Ma, D., “Crystallization Characteristics of Polypropylene and Low Ethylene Content Polypropylene Copolymer With and Without Nucleating Agents,”J. Appl. Polym. Sci.,51, 51 (1994).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Park, JY., Kwon, M.H., Lee, Y.S. et al. Effects of nucleating agent on nonisothermal crystallization of syndiotactic polystyrene. Korean J. Chem. Eng. 17, 262–265 (2000). https://doi.org/10.1007/BF02699037
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02699037