Brownian Dynamics Study of Mixed Linear-Hyperbranched Polymers

Brownian Dynamics Study of Mixed Linear-Hyperbranched Polymers

Brownian dynamics simulations have been performed on a variety of mixed linear-branched molecules. The rheological properties of three different constant molecular weight systems, with varying ratios of linear segments to branch points, are reported. The transition from perfectly branched behavior (...

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Veröffentlicht in:Macromolecules 2001-09, Vol.34 (20), p.7127-7134
Hauptverfasser: Lee, A. T, McHugh, A. J
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Properties and characterization
Solution and gel properties
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Zusammenfassung:Brownian dynamics simulations have been performed on a variety of mixed linear-branched molecules. The rheological properties of three different constant molecular weight systems, with varying ratios of linear segments to branch points, are reported. The transition from perfectly branched behavior (low viscosity) to linear-chain-like behavior (high viscosity) is found to occur at a mole fraction of linear segments of 0.8.
ISSN:0024-9297
1520-5835
DOI:10.1021/ma0103122