Rheological and small-angle neutron scattering studies of aqueous solutions of branched PEO-PPO-PEO copolymers.

Abstract

Tetronic 908 is a four-branched copolymer comprised of polyethylene oxide (PEO) and polypropylene oxide (PPO) blocks fixed on an aliphatic diamine. In aqueous solution, this polymer has an amphiphilic character due to the difference in PEO and PPO solubilities with increase in temperature. This system presents interesting rheological properties depending on… (More)

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