作者：Wang XH, Liu RG, Wu M, Wang ZG, Huang Y
关键字：Isotactic polypropylene; Disentanglement; Crystallization
论文来源：期刊
具体来源：Polymer, 2009, 50(24), 5824-5827
发表时间：2009年

Isotactic polypropylene (iPP) with "disentangled" chains was generated through crystallization of iPP from its mineral oil solution. TGA test assured complete removal of mineral oil from iPP precipitates. Time sweep rheological measurements showed the modulus build-up with time indicating the formation of "disentangled" chains in iPP after the sample disentanglement treatment. The "disentangled" chains could preserve for a certain time before completely re-entangled during melting. Crystallization kinetics of iPP with "disentangled" chains was studied by using polarized optical microscope. The growth rate of spherulites in "disentangled" iPP was faster than that in the entangled one.