Publication: Theory of hierarchical lamellar structures from A(BC)nBA multiblock copolymers

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Title	Theory of hierarchical lamellar structures from A(BC)nBA multiblock copolymers
Authors/Editors*	W. Li, A.-C. Shi
Where published*	Macromolecules
How published*	Journal
Year*	2009
Volume	42
Number
Pages	811-819
Publisher	American Chemical Society
Keywords
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Abstract	The phase behavior of A(BC)nBA multiblock copolymer melts is investigated using self-consistent mean-field theory (SCMFT). Solutions of the SCMFT equations corresponding to hierarchical lamellar structures are obtained. The free energy of these structures are used to construct phase diagrams. It is predicted that hierarchical lamellar structures with different number of âinternalâ BC layers can be formed. The number of BC layers of the stable lamellar structure is determined by the competition between chain entropy and interfacial energy. It is found that more BC layers are preferred when the interactions between A and BC blocks are much stronger than that between B and C blocks.