Randomly hyperbranched polymers

Konkolewicz, Dominik, Gilbert, Robert G. and Gray-Weale, Angus (2007) Randomly hyperbranched polymers. Physical Review Letters, 98 23: 238301.1-238301.4. doi:10.1103/PhysRevLett.98.238301

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Author Konkolewicz, Dominik
Gilbert, Robert G.
Gray-Weale, Angus
Title Randomly hyperbranched polymers
Journal name Physical Review Letters   Check publisher's open access policy
ISSN 0031-9007
Publication date 2007-06-08
Sub-type Article (original research)
DOI 10.1103/PhysRevLett.98.238301
Open Access Status File (Publisher version)
Volume 98
Issue 23
Start page 238301.1
End page 238301.4
Total pages 4
Place of publication College Park, MD, U.S.A.
Publisher American Physical Society
Collection year 2008
Language eng
Subject 250599 Macromolecular Chemistry not elsewhere classified
670702 Synthetic resins and rubber
Formatted abstract
We describe a model for the structures of randomly hyperbranched polymers in solution, and find a logarithmic growth of radius with polymer mass. We include segmental overcrowding, which puts an upper limit on the density. The model is tested against simulations, against data on amylopectin, a major component of starch, on glycogen, and on polyglycerols. For samples of synthetic polyglycerol and glycogen, our model holds well for all the available data. The model reveals higher-level scaling structure in glycogen, related to the β particles seen in electron microscopy.
Keyword Physics, Multidisciplinary
Size-exclusion Chromatography
Mean-field Theory
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

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Created: Mon, 18 Feb 2008, 17:26:09 EST