Correlations between mark‐houwink‐sakurada parameters for linear and star‐like polymers

The influence of the excluded volume on the intrinsic viscosity of linear and star‐like polymers in dilute solution is reflected on the Mark‐Houwink‐Sakurada (MHS) parameters k and “a”. A correlation between these parameters and the number of arms for star‐like polybutadiene in different solvents is proposed. Also, for various linear polymers, a relation describing the decrease of parameter k with increasing “a”, the proportionality coefficient being the unperturbed parameter k θ , is established.