Syndiotactic polystyrene crystallization behavior

Cimmino, S., Di Pace, E., Martuscelli, E., Silvestre, C. Syndiotactic polystyrene Crystallization and melting behavior. Polym. Commun., 32(6), 1080-1083 (1991). 

Wu H-D, Tseng C-R, Chang F-C (2001) Chain conformation and crystallization behavior of the syndiotactic polystyrene nanocomposites studied using fourier transform infrared analysis. Macromolecules 34(9) 2992-2999... 

Tseng, C. R., H. Y. Lee, and F. C. Chang. 2001. Crystallization kinetics and crystaUization behavior of syndiotactic polystyrene/clay nanocomposites. Journal of Polymer Science Part B Polymer Physics 39 (17) (September 1) 2097-2107. doi 10.1002/polb.ll84. http //doi.wiley.eom/l0.1002/polb. 1184. 

Poly(cyclohexyl acrylate) was shown to be miscible with PS with ucst behavior [720]. Random copolymers of cyclohexyl acrylate with n-butyl acrylate showed miscibility with PS above 50% cyclohexyl acrylate[721]. Poly(cyclohexyl methacrylate)/isotactic PS blends showed miscibility based on calorimetry and NMR studies [722]. The NMR results showed homogeneous behavior at a scale of 2.5-3.5 nm. Poly(4-trimethylsilyl styrene) miscibility with polyisoprene was observed with a lest behavior (critical temperature = 172 ° C at degree of polymerization of 370) [723]. The interaction parameter, showed the following relationship = 0.027—9.5/T. Isotactic and syndiotactic polystyrene both exhibit crystallinity, whereas atactic polystyrene is amorphous. Atactic PS/isotactic PS blends exhibited crystallization kinetics, which decreased linearly with atactic PS addition indicating miscibility [724]. The TgS of aPS and iPS are identical, thus Tg methods could not be employed to assess miscibility. Atactic PS/syndiotactic PS blends were also noted to be miscible with rejection of atactic PS in the interfibrillar region between the lamellar stacks of sPS [725]. 

Structure, Morphology, and Crystallization Behavior of Syndiotactic Polystyrene... 

Chiu, F., Shen, K., Tsai, S. H. Y, Chen, C. Pre-melting temperature effect on the isothermal melt crystallization and multiple melting behavior of syndiotactic polystyrene. Polym. Eng. Sci., 41(5), 881-889 (2001). 

Koyama, K., Soeno, T, Haneda, T., Yonetake, K., Ishizuka, O. Melting and crystallization behavior of syndiotactic polystyrene. Polym. Prep. Jpn., 37,1173-1175 (1988). 

Chiu, F-C., Peng, C-G., Fu, Q. Non-isothermal crystallization and multiple melting behavior of syndiotactic polystyrene— Pre-melting temperature effects. Polym. Eng. ScL, 40(11), 2397-2406 (2000). 

Zhang, X. Q., Son, Y. Effects of maleated syndiotactic polystyrene on the morphology, mechanical properties, and crystallization behavior of syndiotactic polystyrene/polyamide 6 blends. Journal of Applied Polymer Science, 89(9), 2502-2506 (2003). 

Tseng CR, Wu JY, Lee HY, Chang PC. Preparation and crystallization behavior of syndiotactic polystyrene-clay nanocomposites. Polymer 2001 42 10063-10070. 

Woo EM, Sun YS, Yang CP. Polymorphism, thermal behavior, and crystal stability in syndiotactic polystyrene vs. its miscible blends. Prog Polym Sci 2001 26 945-83. 

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