Comparing crystallization kinetics among two G-resin samples and iPP via Flash DSC measurement View Full Text


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Article Info

DATE

2017-01-25

AUTHORS

Duenpen Kalapat, Qiyun Tang, Xiaohong Zhang, Wenbing Hu

ABSTRACT

We employed the fast-scan chip-calorimeter Flash DSC1 to compare the non-isothermal and isothermal crystallization kinetics among two G-resin samples (mainly separate in different molecular weights of isotactic polypropylene randomly copolymerized with a few 1-butene in SINOPEC brand MT12-s and MT18-s) and homopolymer isotactic polypropylene (iPP, similar molecular weights). The results show that two G-resin samples crystallize slower than iPP, and their differences in the temperature dependence of crystallization rates reveal the chemical confinement effect of comonomers on polymer crystallization. Furthermore, MT18-s crystallizes slightly faster than MT12-s at low temperatures, which can be attributed to its relatively low molecular weight benefiting a high molecular mobility in the low-temperature region. More... »

PAGES

1859-1866

References to SciGraph publications

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s10973-017-6095-9

DOI

http://dx.doi.org/10.1007/s10973-017-6095-9

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1074206468


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