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Effect Of Slow Monomer Addition On Molecular Parameters Of Hyperbranched Polymers Synthesized In The Presence Of Multifunctional Core Molecules

Zhiping Zhou, Zhengwei Jia, D. Yan
Published 2010 · Chemistry

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This study develops the kinetics for the slow monomer addition technique in the synthesis of hyperbranched polymers. Taking the conversion of monomer (x) as a variable, we derived the analytic expressions of molecular size distribution function, average degree of polymerization, polydispersity index and degree of branching. These expressions are not only amenable to the polymerization with high monomer conversion, but also appropriate to describe the whole polymerization process. Comparison with the one-pot polymerization indicates that the slow monomer addition technique improves the molecular weight distribution and increases the degree of branching for the products obtained.
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