Influence of Surfactant and Charged Monomer Concentrations on Micro-Block Length of Associative Polymers by Micellar Polymerization

摘要

In the micellar polymerization to prepare associative polyelectrolyte, the influence of solution environment on hydrophobical micro-block length has been investigated. The results revealed that the aggregation number (N-agg) of surfactant micelles and micro-block length (N-H) of polymers closely related to electrolyte concentration in polymerization solution, and all of the surfactant and charged monomer concentration can change the free counterion concentration (C-aq) to affect N-agg and N-H. Therefore, the N-H with traditional calculation method which N-agg is looked as constant value was not accurate enough. Subsequently, we studied the attribution of N-H to rheological properties. The results indicated that the micro-block length can increase obviously the reversible network strength in solution to make a few contribution of thickening properties of associative polymer.