Preferred Label : root-mean-square end-to-end distance;
Detailed label : root-mean-square end-to-end distance in polymers, <r2>1/2;
IUPAC definition : The square root of the mean-square end-to-end distance of a linear polymer chain averaged
over all conformations of the chain. For a freely jointed chain consisting of N segments
each of length L, it is given by: \[{ }r {2}{ } {1/2} \sqrt{N}\ L\] The subscript
zero is used to indicate unperturbed dimensions, as in r2 0(1/2). If this term
is used repeatedly, and if it is not confusing, the abbreviated name 'end-to-end distance'
may be used.;
Origin ID : R05405;
See also
The square root of the mean-square end-to-end distance of a linear polymer chain averaged
over all conformations of the chain. For a freely jointed chain consisting of N segments
each of length L, it is given by: \[{ }r {2}{ } {1/2} \sqrt{N}\ L\] The subscript
zero is used to indicate unperturbed dimensions, as in r2 0(1/2). If this term
is used repeatedly, and if it is not confusing, the abbreviated name 'end-to-end distance'
may be used.
