Effects of Segment Length Asymmetry in Ternary Diblock Co-polymer-Homopolymer Mixtures

Mridul Yadav; Frank S. Bates; David C Morse

doi:10.1021/acs.macromol.9b00127

Effects of Segment Length Asymmetry in Ternary Diblock Co-polymer-Homopolymer Mixtures

Mridul Yadav, Frank S. Bates, David C Morse

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

Self-consistent field theory is used to study the effect of asymmetry between A and B statistical segment lengths on interfacial properties and phase behavior in ternary mixtures of AB diblock co-polymers, A homopolymers, and B homopolymers. We consider systems with volumetrically symmetric homopolymers and co-polymer, in which a difference between A and B statistical segment length is the only source of asymmetry between A and B monomers. The sign of the spontaneous curvature of monolayer interfaces between A- and B-rich homopolymer domains is shown to depend on the ratio of co-polymer to homopolymer chain lengths: Interfaces preferentially curve toward the component with a higher statistical segment length when the homopolymer lengths are greater than or comparable to the co-polymer length (as also found in diblock co-polymer melts) but curve away from this component when the homopolymers are much shorter than the co-polymer.

Original language	English (US)
Pages (from-to)	4091-4102
Number of pages	12
Journal	Macromolecules
Volume	52
Issue number	11
DOIs	https://doi.org/10.1021/acs.macromol.9b00127
State	Published - Jun 11 2019

Bibliographical note

Funding Information:
This work was supported primarily by the National Science Foundation through the University of Minnesota MRSEC under Award Number DMR-1420013, using computational resources of the Minnesota Supercomputing Institute.

Publisher Copyright:
© 2019 American Chemical Society.

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MRSEC IRG-3: Hierarchical Multifunctional Macromolecular Materials
Reineke, T. M., Bates, F. S., Dorfman, K., Dutcher, C. S., Hillmyer, M. A., Lodge, T., Morse, D. C., Siepmann, I., Barreda, L. & Ganewatta, M. S.
1/1/98 → …
Project: Research project
University of Minnesota MRSEC (DMR-1420013)
Lodge, T.
11/1/14 → 10/31/20
Project: Research project

Supporting Data for Effects of Segment Length Asymmetry in Ternary Diblock Co-polymer-Homopolymer Mixtures
Yadav, M., Morse, D. C. & Bates, F. S., Data Repository for the University of Minnesota, 2020
http://hdl.handle.net/11299/214891
Dataset
Supporting Data for "Effects of Segment Length Asymmetry in Ternary Diblock Co-polymer-Homopolymer Mixtures"
Yadav, M., Morse, D. C. & Bates, F. S., Data Repository for the University of Minnesota, 2020
DOI: 10.13020/abap-1q69, http://hdl.handle.net/11299/214891
Dataset

Cite this

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title = "Effects of Segment Length Asymmetry in Ternary Diblock Co-polymer-Homopolymer Mixtures",

abstract = "Self-consistent field theory is used to study the effect of asymmetry between A and B statistical segment lengths on interfacial properties and phase behavior in ternary mixtures of AB diblock co-polymers, A homopolymers, and B homopolymers. We consider systems with volumetrically symmetric homopolymers and co-polymer, in which a difference between A and B statistical segment length is the only source of asymmetry between A and B monomers. The sign of the spontaneous curvature of monolayer interfaces between A- and B-rich homopolymer domains is shown to depend on the ratio of co-polymer to homopolymer chain lengths: Interfaces preferentially curve toward the component with a higher statistical segment length when the homopolymer lengths are greater than or comparable to the co-polymer length (as also found in diblock co-polymer melts) but curve away from this component when the homopolymers are much shorter than the co-polymer.",

author = "Mridul Yadav and Bates, {Frank S.} and Morse, {David C}",

note = "Funding Information: This work was supported primarily by the National Science Foundation through the University of Minnesota MRSEC under Award Number DMR-1420013, using computational resources of the Minnesota Supercomputing Institute. Publisher Copyright: {\textcopyright} 2019 American Chemical Society.",

year = "2019",

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doi = "10.1021/acs.macromol.9b00127",

language = "English (US)",

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T1 - Effects of Segment Length Asymmetry in Ternary Diblock Co-polymer-Homopolymer Mixtures

AU - Yadav, Mridul

AU - Bates, Frank S.

AU - Morse, David C

N1 - Funding Information: This work was supported primarily by the National Science Foundation through the University of Minnesota MRSEC under Award Number DMR-1420013, using computational resources of the Minnesota Supercomputing Institute. Publisher Copyright: © 2019 American Chemical Society.

PY - 2019/6/11

Y1 - 2019/6/11

N2 - Self-consistent field theory is used to study the effect of asymmetry between A and B statistical segment lengths on interfacial properties and phase behavior in ternary mixtures of AB diblock co-polymers, A homopolymers, and B homopolymers. We consider systems with volumetrically symmetric homopolymers and co-polymer, in which a difference between A and B statistical segment length is the only source of asymmetry between A and B monomers. The sign of the spontaneous curvature of monolayer interfaces between A- and B-rich homopolymer domains is shown to depend on the ratio of co-polymer to homopolymer chain lengths: Interfaces preferentially curve toward the component with a higher statistical segment length when the homopolymer lengths are greater than or comparable to the co-polymer length (as also found in diblock co-polymer melts) but curve away from this component when the homopolymers are much shorter than the co-polymer.

AB - Self-consistent field theory is used to study the effect of asymmetry between A and B statistical segment lengths on interfacial properties and phase behavior in ternary mixtures of AB diblock co-polymers, A homopolymers, and B homopolymers. We consider systems with volumetrically symmetric homopolymers and co-polymer, in which a difference between A and B statistical segment length is the only source of asymmetry between A and B monomers. The sign of the spontaneous curvature of monolayer interfaces between A- and B-rich homopolymer domains is shown to depend on the ratio of co-polymer to homopolymer chain lengths: Interfaces preferentially curve toward the component with a higher statistical segment length when the homopolymer lengths are greater than or comparable to the co-polymer length (as also found in diblock co-polymer melts) but curve away from this component when the homopolymers are much shorter than the co-polymer.

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Effects of Segment Length Asymmetry in Ternary Diblock Co-polymer-Homopolymer Mixtures

Abstract

Bibliographical note

How much support was provided by MRSEC?

Reporting period for MRSEC

Access

Other files and links

MRSEC IRG-3: Hierarchical Multifunctional Macromolecular Materials

University of Minnesota MRSEC (DMR-1420013)

Supporting Data for Effects of Segment Length Asymmetry in Ternary Diblock Co-polymer-Homopolymer Mixtures

Supporting Data for "Effects of Segment Length Asymmetry in Ternary Diblock Co-polymer-Homopolymer Mixtures"

Cite this