Encyclopedic Dictionary of Polymers

2011 Edition
| Editors: Jan W. Gooch

Radius of Gyration

  • Jan W. Gooch
Reference work entry
DOI: https://doi.org/10.1007/978-1-4419-6247-8_9741
n The radial distance from a given axis at which the mass of a body could be concentrated without altering the rotational inertia of the body about that axis (Giambattista A, Richardson R, Richardson RC, Richardson B (2003) College physics. McGraw-Hill Science/Engineering/Math, New York). For a polymer molecule, a parameter characterizing the size of a polymer random coil. It is defined as
$${\rm R}_{\rm G} ^{\,\,\,2} = \rm \Sigma {\rm ms}_{\rm i}^{\,\,2} /\rm \Sigma {\rm m = }\,\rm \Sigma {\rm s}_{\rm i}^{\,\,\rm 2} /{\rm n}$$
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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • Jan W. Gooch
    • 1
  1. 1.AtlantaUSA