Modeling of propylene polymerization with long chain branching

Mogilicharla, A and Mitra, K and Majumdar, S (2014) Modeling of propylene polymerization with long chain branching. Chemical Engineering Journal, 246. pp. 175-183. ISSN 1385-8947

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Abstract

A kinetic model has been proposed to describe the propylene polymerization process with long chain branching for a twin catalyst system to fit the experimental evolution of molecular weights, polydispersity index of atactic polypropylene, isotactic polypropylene and the grafting density at different catalyst and cocatalyst concentrations. Kinetic parameters are estimated by real coded genetic algorithm (an evolutionary optimization technique) from experimental data available in open literature. The validated model has the capability of predicting the branching density as a function of catalyst addition pattern, catalyst ratios and copolymerization time. Further, the validated model has been used to calculate the 'molecular weight long chain branching distribution'. Parametric sensitivity study has been conducted to analyze the effect of kinetic parameters on the long chain branching formation and other molecular properties of the polymer

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IITH Creators:
IITH CreatorsORCiD
Mitra, Khttp://orcid.org/0000-0001-5660-6878
Majumdar, SUNSPECIFIED
Item Type: Article
Uncontrolled Keywords: Catalysts; Genetic algorithms; Kinetic parameters; Kinetic theory; Molecular weight; Parameter estimation; Polymerization; Polypropylenes
Subjects: Chemical Engineering > Biochemical Engineering
Divisions: Department of Chemical Engineering
Depositing User: Team Library
Date Deposited: 19 Dec 2014 10:06
Last Modified: 24 Jul 2017 11:28
URI: http://raiith.iith.ac.in/id/eprint/1214
Publisher URL: https://doi.org/10.1016/j.cej.2014.02.052
OA policy: http://www.sherpa.ac.uk/romeo/issn/1385-8947/
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