## Abstract

Different types of lamellar-within-lamellar structure formations in A-b-(B-b-A)(n)-b-C terpolymer melts, with a volume fraction of components A, B, and C in the ratio of 1:1:2, are analyzed in the strong segregation limit using a simple theoretical approach. We consider the lamellar, parallel lamellar-within-lamellar, and perpendicular lamellar-within-lamellar self-assembled states. The influence of the copolymer chain length N, the value of the Flory-Huggins interaction parameters chi(AB), chi(AC), and chi(BC), and the number of blocks n in the AB multiblock chain on the phase behavior is discussed. We show that in the limiting case of n >> 1, the perpendicular lamellar-within-lamellar state becomes stable when the interaction parameters satisfy the relation 0 <chi(BC) <0.22 chi(AC).

Original language | English |
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Pages (from-to) | 5250-5256 |

Number of pages | 7 |

Journal | Journal of Physical Chemistry B |

Volume | 114 |

Issue number | 16 |

DOIs | |

Publication status | Published - 29-Apr-2010 |

## Keywords

- SUPRAMOLECULAR POLYMERIC MATERIALS
- BLOCK-COPOLYMERS
- LENGTH SCALES
- ARCHITECTURES
- MORPHOLOGIES
- COMPLEXES
- BULK