Berlin 2018 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 20: Poster Session I

CPP 20.17: Poster

Montag, 12. März 2018, 17:30–19:30, Poster A

Morphology of Amphiphilic Bottlebrush Copolymers in Dilute Aqueous Solution — •Jia-Jhen Kang¹, Kaltrina Shehu¹, Junpeng Zhao², Stergios Pispas², and Christine M. Papadakis¹ — ¹TU München, Physik-Department, Garching, Germany — ²Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, Athens, Greece

Densely grafted copolymers, or polymeric bottle brushes, present a complex architecture. We investigate polymeric bottle brushes having diblock or random copolymers as side arms. These comprise poly(ethylene oxide) and poly(propylene oxide), where the former is water-soluble and the latter becomes hydrophobic at elevated temperatures, which leads to increased turbidity both for diblock and for random side arms [1]. In the present study, we aim to characterize their temperature-dependent conformation and self-assembly in dilute aqueous solution using dynamic light scattering and small-angle X-ray scattering. Comparing the data of the bottle brushes with analogous linear polymers, we gain insight into the effects caused by the complex architecture.

[1] J. Zhao et al., J. Polym. Sci.: Part A: Polym. Chem. 48, 2320 (2010) and Macromolecules 43, 1771 (2010).