The dynamic dilution theory of stress relaxation, quantitative for star polymer melts, cannot be directly applied to star−linear blends. The linear chains on their reptation time scale τ d release constraints on the star arms, resulting in constraint-release Rouse motion for the star arms not described by dynamic dilution. We present a microscopic theory without adjustable parameters for stress relaxation in such blends, which is in excellent agreement with dynamic rheology data for the full range of blend fractions.
No takes yet. Share an insight, caveat, or question.
Milner et al. (1998) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: