5 years ago

Anomalous Temperature Dependence of Isotactic Polypropylene α-on-β Cross-Nucleation Kinetics

Anomalous Temperature Dependence of Isotactic Polypropylene α-on-β Cross-Nucleation Kinetics
Alfred Menyhard, Stan Looijmans, Dario Cavallo, Gerrit W. M. Peters, Giovanni C. Alfonso
The rate of cross-nucleation of the isotactic polypropylene monoclinic α-phase on the trigonal β-phase crystals increases with decreasing undercooling, contrary to previous observations in other polymorphic systems and to heterogeneous nucleation of the same crystal on various solids. This revealed a large hindering effect of β-substrate’s growth on α-phase cross-nucleation.

Publisher URL: http://dx.doi.org/10.1021/acs.cgd.7b00872

DOI: 10.1021/acs.cgd.7b00872

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