Parallel versus Perpendicular Lamellar-within-Lamellar Self-Assembly of A-b-(B-b-A)(n)-b-C Ternary Multiblock Copolymer Melts

A. Subbotin, V. Markov, G. ten Brinke*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

11 Citations (Scopus)
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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 languageEnglish
Pages (from-to)5250-5256
Number of pages7
JournalJournal of Physical Chemistry B
Volume114
Issue number16
DOIs
Publication statusPublished - 29-Apr-2010

Keywords

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

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