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Temperature dependence of the viscosity obtained for a 10 % w/w aqueous dispersion of the PHPMAC41‐PHPMA180 diblock copolymer nano‐objects. The rheometer was pre‐heated to 50 °C and loaded with low‐viscosity PHPMAC41‐PHPMA180 vesicles. This dispersion was then cooled at a rate of 0.5 °C h−1. The local maximum in viscosity observed at around 14 °C indicates the formation of weakly interacting worms, while low‐viscosity spheres are obtained below 10 °C.
