Christine Weber, Sarah Rogers, Antje Vollrath, Stephanie Hoeppener, Tobias Rudolph, Nicole Fritz, Richard Hoogenboom and Ulrich S. Schubert Aqueous solution behavior of comb-shaped poly(2-ethyl-2-oxazoline) Journal of Polymer Science Part A: Polymer Chemistry 51
Comb polymers composed of a polymethacrylate backbone and poly(2-ethyl-2-oxazoline) side chains exist as macromolecular bottlebrushes in aqueous solution, revealing a transition from ellipsoidal to a cylindrical shape around a backbone degree of polymerization of 30. The polymers exhibit lower critical solution temperature behavior in aqueous solution. The application of various techniques (phase diagram, turbidimetry, dynamic light scattering, small-angle neutron scattering, and transmission electron microscopy) provides access to information of the influence of the polymeric architecture upon its thermoresponsive properties.
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