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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 22: Poster Session III - Charged Soft Matter and Theory and Simulation

CPP 22.43: Poster

Wednesday, March 24, 2021, 16:30–18:30, CPPp

Structure formation in 2D-Copolymer Networks — •Gaoyuan Wang and Marcus Müller — Institut für Theoretische Physik, Friedrich-Hund-Platz 1, 37077 Göttingen

Two-dimensional polymer networks, characterized by a planar geometry, open new possibilities for the design of polymer molecules with novel properties. Using large-scale simulations, we study microphase separation in two-dimensional, defect-free, interpenetrating phantom networks, obtained by crosslinking symmetric diblock copolymers. The system exhibits a complex interplay between the network structure, characterized by the length (geometry) of a unit cell, and the lamellar microphase with its periodicity that depends on the incompatibility between the blocks. We investigate the incompatibility at which system microphase separates as a function of the size of the (unperturbed) unit cell of the network and quantify the network structure in the microphase-separated state. Our findings are compared to the microphase separation linear diblock, triblock and multiblock copolymers as well as to the mechanical properties of networks.