A Novel Method for Dynamic Molecular Weight Distribution Determination in Organometallic Catalyzed Olefin Polymerizations
نویسندگان
چکیده
In this study, a mathematical model for the time evolution of molecular weight distribution (MWD) was developed. This temporal is based on well-known Ziegler–Natta polymerization mechanism and reaction kinetics by parametric solving related differential equations. However, due to generality reactions involved, can be extended other type catalysts, such as metallocenes, Phillips, etc. The superiority lies in providing possibility more precise prediction over active sites kinetic parameters using simple equation, which leads improved reactor design large-scale production. uses function develop methodology MWD calculations. way, transient response limited first few minutes reaction; however, it important demonstrates establishment final MWD. According results, almost practical conditions with negligible transfer resistances, dependency has interval, depending constants reactions. Increasing infinity results an increase MW widening MWD, confirms experimental plots well. short, main advantage our proposed previous ones its ability predict even before completion reaction. present match well those Schulz–Flory distribution, only predicts thus confirming that reliable generalizable.
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ژورنال
عنوان ژورنال: Catalysts
سال: 2022
ISSN: ['2073-4344']
DOI: https://doi.org/10.3390/catal12101130