Effect of Operating Conditions on Dynamic Crystallization of Ethylene/1‐Octene Copolymers | Zendy

Chokputtanawuttilerd Nuttawat | Zendy; Anantawaraskul Siripon | Zendy; Alghyamah Abdulaziz A. | Zendy; Soares João B. P. | Zendy

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Effect of Operating Conditions on Dynamic Crystallization of Ethylene/1‐Octene Copolymers

Author(s) -

Chokputtanawuttilerd Nuttawat,

Anantawaraskul Siripon,

Alghyamah Abdulaziz A.,

Soares João B. P.

Publication year - 2013

Publication title -

macromolecular chemistry and physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.57

H-Index - 112

eISSN - 1521-3935

pISSN - 1022-1352

DOI - 10.1002/macp.201300453

Subject(s) - crystallization , copolymer , crystallinity , ethylene , materials science , polymer , polymer chemistry , chemical engineering , crystallization of polymers , chemistry , composite material , catalysis , organic chemistry , engineering

Dynamic crystallization (DC) is a new characterization technique for measuring the chemical composition distribution (CCD) of semicrystalline copolymers. This technique fractionates polymers based on chain crystallizabilities under a constant cooling rate; a solvent is also fed through the column at a constant flow rate during the crystallization to enhance the physical separation of the polymer fractions. In this work, a DC model for ethylene/1‐olefin copolymers on the basis of population balance, crystallization kinetics, and axial dispersion is proposed. This model is found to describe the experimental DC profiles of an ethylene/1‐octene copolymer at various operation conditions very well.

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