Poly(ethylene oxide)-and poly(acrylamide)-based water-soluble associative polymers:synthesis,characterisation,properties in solution

摘要

The association behaviour of hydrophobically modified water-soluble polymers in aqueous solutions and its manifestation in the rheological properties are discussed.In particular,solutions of (i) end-hydrophobically modified poly(ethylene oxide) and (ii) poly(acrylamide) with grafted hydrophobic side-chains are considered.We demonstrate that balance between intra-and inter-molecular aggregation and,as a result,rheological behaviour in the solution depend both on polymer architecture and strength of hydrophobic interactions which can be tuned by variation in,e.g.,salinity or temperature.