Hyperbranched polymers. Synthesis, modeling, experimental validation, and rheology of hyperbranched poly(methyl methacrylate) derived from a multifunctional monomer (MFM) route

Gretton-Watson, SP, Alpay, E, Steinke, JHG and Higgins, JS (2005) Hyperbranched polymers. Synthesis, modeling, experimental validation, and rheology of hyperbranched poly(methyl methacrylate) derived from a multifunctional monomer (MFM) route Industrial and Engineering Chemistry Research, 44 (23). pp. 8682-8693.

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Abstract

The synthesis of hyperbranched PMMA has been achieved using a facile one-step batch solution polymerization reaction. The reaction is essentially a linear polymerization doped with appropriate amounts of a multifunctional monomer (MFM) and chain transfer agent (CTA). On this basis, a theoretical model for the MFM reaction has been developed and experimentally validated for the number-aver age molecular weight and degree of branching data, by assuming isothermal batch conditions and employing key reaction parameters from established linear PMMA kinetics. A first comparison of the melt rheology of the hyperbranched polymer with that of the linear one revealed a significant reduction in melt viscosity and shear thinning. It is expected that the generic model developed here will guide the manufacture of other free-radical hyperbranched polymers, of desired architecture or physical properties, using modeling and optimization methods. © 2005 American Chemical Society.

Item Type:	Article
Authors :	Name Email ORCID Gretton-Watson, SP Alpay, E e.alpay@surrey.ac.uk Steinke, JHG Higgins, JS
Date :	9 November 2005
DOI :	10.1021/ie0488041
Depositing User :	Symplectic Elements
Date Deposited :	17 May 2017 13:07
Last Modified :	16 Jan 2019 18:40
URI:	http://epubs.surrey.ac.uk/id/eprint/837988

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