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Mathematical Modeling of Multiple High Temperature Thermal Gradient Interaction Chromatography (m‐HT‐TGIC) for Ethylene/1‐Olefin Copolymer Blends
Author(s) -
Prasongsuksakul Siwakorn,
Anantawaraskul Siripon,
Soares João B. P.
Publication year - 2018
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.201700061
Subject(s) - copolymer , adsorption , desorption , ethylene , chromatography , materials science , fractionation , crystallization , thermal desorption , elution , chemical engineering , column chromatography , chemistry , polymer chemistry , organic chemistry , polymer , composite material , catalysis , engineering
High temperature thermal gradient interaction chromatography (HT‐TGIC) have been developed to measure the chemical composition distribution (CCD) of ethylene/1‐olefin copolymers over a wide range of compositions. Multiple high temperature thermal gradient interaction chromatography (m‐HT‐TGIC) is a concept developed to further enhance the physical separation of copolymer components by performing multiple adsorption/desorption cycles, similarly to the operation of multiple crystallization elution fractionation (m‐CEF) developed earlier. In this work, a mathematical model for describing m‐HT‐TGIC is developed based on population balances in multiple non‐equilibrium adsorption/desorption stages for ethylene/1‐olefin copolymer blends. The effects of number of m‐HT‐TGIC cycles, section length, and column length are also reported and discussed.