Thecis-polyisoprene, together with the characterisation data
by membrane osmometry (MO), intrinsic viscometry (IV), gel
permeation/size exclusion chromatography (GPC/SEC) and low
angle laser light scattering (LALLS), was supplied by Polymer
Laboratories Ltd, UK. These methods were used to characaterise
the polymers for number-average (Mn), weight-average (Mw),
viscosity-average (Mv) andz-average (Mz
) molecular weights,
and molecular weight distribution or polydispersity (Mw/Mn).
The polymers used were fairly monodispersed (Mw/Mn< 1.10).
The characterisation data are given inTable 1. The dodecane was
supplied by Sigma-Aldrich. The polymers and dodecane were
used, as supplied, without further purification