Crystallization Behavior of Polypropylene/Syndiotactic1,2-Polybutadiene Blends


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The melting and crystallization behaviors of Polypropylene/Syndiotactic1,2-polybutadiene (PP/s-PB) blends and neat PP were studied by using DSC, the results showed that the presence of s-PB in PP would have a strong impact on the crystallization capacity of PP. The presence of s-PB in PP could increase the crystallization temperature(Tc) of PP, and the s-PB could obviously lower supercooling temperature(Tm-Tc) of PP, but the s-PB in PP have a Slightly influence on the melting temperature(Tm) of PP. The proposed reason for those are that the crosslinking s-PB in high temperature is a nucleator for PP’s crystallization and increases PP’s crystalline rate. However, the s-PB lowers PP’s crystallinity. At the same time, the presence of PP in blends lowers s-PB’s crystallinity, but the PP in blends have a Slightly influence on the melting temperature(Tm) and crystallization temperature(Tc) of s-PB.



Key Engineering Materials (Volumes 531-532)

Edited by:

Chunliang Zhang and Liangchi Zhang




X. F. He et al., "Crystallization Behavior of Polypropylene/Syndiotactic1,2-Polybutadiene Blends", Key Engineering Materials, Vols. 531-532, pp. 182-185, 2013

Online since:

December 2012




[1] Liu G D, Li H L, Liu J J. Structure or property of PP/UHMWPE blends. China Plastics Industry. 2003, 31(1): 20.

[2] Tong S C, Zhou D F. Cross-linking and crystallization of dynamic vulcanized PP/BR blends. Journal of Functional Polymers. 1995, 8(3): 237.

[3] Chen J H, Tsai F C, Nien Y H. Isothermal crystallization of isotactic polypropylene molecular weight atactic polypropylene. J Polymer. 2005, 46(15): 5680-5688.


[4] Ou C F. The crystallization characteristics of polypropylene and low ethylene content polypropylene copolymer with copolyesters. J European Polymer. 2002, 38(3): 467-473.


[5] Xu G, Shi W F, Hu P. Crystallization kinetics of polypropylene with hyperbranched polyurethane acrylate being used as a toughening agent. J European Polymer. 2005, 41(8): 1828-1837.


[6] Amash A, Zugenmaier P. Thermal and Dynamic Mechanical Investigations on Fiber-Reinforced Polypropylene Composites. J Appl Polym Sci. 1997, 63: 1143–1154.


[7] Cai J, Han Y, Yuan Z, Cheng R, Wang Zh, Jiang L, Bi J. and Li G., Crystallization behavior of syndiotactic and atactic 1, 2-polybutadiene blends, Polym Int 2004. 53: 1127-1137.