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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 46: Poster II
CPP 46.12: Poster
Donnerstag, 12. März 2026, 09:30–11:30, P5
Shape and inner structure of micelles from tetrablock terpolymers in aqueous solution — •Katarina Döbler1, Feifei Zheng1, Pablo A. Alvarez Herrera1, Joachim Kohlbrecher3, Anna P. Constantinou2, Theoni K. Georgiou2, and Christine M. Papadakis1 — 1Technical University of Munich, TUM School of Natural Sciences, Soft Matter Physics Group, Garching, Germany — 2Imperial College London, U.K — 3PSI, Villigen, Switzerland
Injectable hydrogels formed by LCST thermoresponsive block terpolymers consisting of thermoresponsive, hydrophilic and hydrophobic blocks are promising materials for tissue engineering by 3D bioprinting. The gel point temperature, gelation mechanism, and physical properties can be tuned by the number, sequence and length of the individual polymer blocks [1,2]. Utilizing small-angle X-ray and neutron scattering in a wide temperature range, we investigate aqueous solutions of thermoresponsive tetrablock terpolymers having different sequences of hydrophilic, hydrophobic and thermoresponsive blocks. By fitting structural models, we gain insight into the shape and size of the micelles as well as their inner structure. Moreover, the gelation mechanism is deduced from the changes of the micellar structure and correlation at the gel point.
[1] A.P. Constantinou et al., Macromolecules 2018, 51, 7019
[2] A.P. Constantinou et al., Macromolecules 2025, 58, 9122
Keywords: block terpolymers; thermoresponsive polymers; hydrogels; bioprinting