Morphology and Phase Diagram of Cyclic ABCB Tetrablock Copolymer

Abstract:

Microphases and triangle phase diagrams of cyclic ABCB tetrablock copolymer melts have been investigated by a combinatorial screening algorithm based on self-consistent field theory (SCFT) in two-dimensional space. Eight main stable ordered morphologies have been observed in the intermediate-segregation regime. SCFT simulation experiments reveal that the compositions of block chain in the cyclic polymer are comparable, the cyclic architecture of polymer chain has a strong topological constraint on the geometry of microphases. The morphologies and phase diagrams are helpful to control and design the suitable ordered microstructure of cyclic copolymer systems.

• Periodical: Advanced Materials Research (Volumes 1004-1005)
• Pages: 1062-1068
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1004-1005.1062
• Online since: August 2014
• Authors: Lan Liu, Shi Jie Zhang, Bo Shi, Dong Dong Mai, Xiao Qing Du, Bo Lin*
• Keywords: Cyclic Copolymer, Morpholoy, Self-Consistent Field Theory, Triangle Phase Diagram

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