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High Temperature Thermal Gradient Interaction Chromatography (HT‐TGIC) of Ethylene/1‐Octene Copolymers: Model Development and Validation
Author(s) -
Inwong Nantiya,
Anantawaraskul Siripon,
Soares João B. P.,
Al Khazaal Abdulaal Z.
Publication year - 2015
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.201500040
Subject(s) - comonomer , copolymer , polymer , 1 octene , ethylene , materials science , desorption , adsorption , population , chromatography , chemical engineering , octene , chemistry , organic chemistry , composite material , demography , sociology , engineering , catalysis
Summary High temperature thermal gradient interaction chromatography (HT‐TGIC) is a new polymer characterization technique developed to characterize the chemical composition distribution (CCD) of ethylene/1‐olefin copolymers based on interactions between polymer chains and the graphitic surface. In this work, a mathematical model was developed to describe HT‐TGIC fractionation using population balances and a non‐equilibrium, multi‐stage adsorption/desorption model. The proposed model was validated with HT‐TGIC experimental profiles of ethylene/1‐octene copolymers with various comonomer contents. Good agreement between experiments and model results was observed.