The Effect of Cooling Rate during Crystallization on the Melting Behavior of Polypropylenes of Different Chemical Structure

2016;
: pp. 479 – 483
https://doi.org/10.23939/chcht10.04.479
Received: September 30, 2014
Revised: November 26, 2014
Accepted: June 02, 2015
Authors: 
Yulia Lukanina, Anatoliy Khvatov, Natalya Kolesnikova and Anatoliy Popov

Emanuel Institute of Biochemical Physics of Russian Academy of Sciences, Kosygina str. 4, Moscow, Russia; hvatovanatoliy@gmail.com

The melting behavior of polypropylenes of different chemical structure (isotactic homopolypropylene, propylene-based block and random copolymers and maleic anhydride grafted polypropylene) was studied by differential scanning calorimeter (DSC) and optical microscopy. Melting behavior and the crystal structure of polypropylene and its copolymers were observed depending on the crystallization rate, chemical nature of co-monomer unites and regularity of co-monomer units arrangement in the polypropylene main chain.

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