“…A draining effect was in fact evidenced by the hydrodynamic data for CA. 16,21 We note that for HPC we observed qYF ~Qcl-An additional parameter that affects the value of qYF is the diameter of the unperturbed cylinder. For consistency with our results for HPC and cellulose we have used the unsolvated diameter (8.1 A) from eq 6.…”