Bicontinuous phase in diblock copolymer melts with added homopolymer

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

We compute in the strong-segregation regime the phase diagram of A-B diblock copolymer with added B homopolymer to see if the bicontinuous phase can be stabilized by adding homopolymers. Our work is motivated by the results of Ajdari and Leibler, who showed using a bending expansion that a single copolymer bilayer in excess homopolymer is unstable to Gaussian bends if the copolymers are sufficiently asymmetric. Our methods, which are not limited to a bending expansion, determine the region of homopolymer concentration and copolymer asymmetry for which a bicontinuous phase might be stable.

Original languageEnglish (US)
Pages (from-to)2404-2411
Number of pages8
JournalMacromolecules
Volume29
Issue number7
DOIs
StatePublished - Mar 25 1996

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Homopolymerization
Block copolymers
Copolymers
Phase diagrams

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

Cite this

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abstract = "We compute in the strong-segregation regime the phase diagram of A-B diblock copolymer with added B homopolymer to see if the bicontinuous phase can be stabilized by adding homopolymers. Our work is motivated by the results of Ajdari and Leibler, who showed using a bending expansion that a single copolymer bilayer in excess homopolymer is unstable to Gaussian bends if the copolymers are sufficiently asymmetric. Our methods, which are not limited to a bending expansion, determine the region of homopolymer concentration and copolymer asymmetry for which a bicontinuous phase might be stable.",
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Bicontinuous phase in diblock copolymer melts with added homopolymer. / Xi, Haowen; Milner, Scott Thomas.

In: Macromolecules, Vol. 29, No. 7, 25.03.1996, p. 2404-2411.

Research output: Contribution to journalArticle

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AU - Milner, Scott Thomas

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AB - We compute in the strong-segregation regime the phase diagram of A-B diblock copolymer with added B homopolymer to see if the bicontinuous phase can be stabilized by adding homopolymers. Our work is motivated by the results of Ajdari and Leibler, who showed using a bending expansion that a single copolymer bilayer in excess homopolymer is unstable to Gaussian bends if the copolymers are sufficiently asymmetric. Our methods, which are not limited to a bending expansion, determine the region of homopolymer concentration and copolymer asymmetry for which a bicontinuous phase might be stable.

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