Isothermal crystallization of isotactic polypropylene in dotriacontane. III. Effect of dilution and crystallization temperature on growth rate

Isothermal crystallization of isotactic polypropylene in dotriacontane. III. Effect of dilution and crystallization temperature on growth rate

The spherulitic growth rate of isotactic polypropylene in dotriacontane was studied using optical microscopy. Polymer concentration was varied from 100 to 10 wt% iPP in 10 wt% intervals. Crystallization temperature was varied from 372 to 429 K in 1 K intervals. The influence of these variables on po...

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Veröffentlicht in:Polymer (Guilford) 1993, Vol.34 (11), p.2324-2329
Hauptverfasser: Wang, Yu F., Lloyd, Douglas R.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Crystallization
Exact sciences and technology
isotactic polypropylene
kinetics
Organic polymers
Physicochemistry of polymers
Properties and characterization
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Zusammenfassung:The spherulitic growth rate of isotactic polypropylene in dotriacontane was studied using optical microscopy. Polymer concentration was varied from 100 to 10 wt% iPP in 10 wt% intervals. Crystallization temperature was varied from 372 to 429 K in 1 K intervals. The influence of these variables on polymer spherulitic growth rate and regime transitions was analysed using the Lauritzen-Hoffman and Toda nucleation theories.
ISSN:0032-3861
1873-2291
DOI:10.1016/0032-3861(93)90816-S