Various phase behaviors of weakly interacting binary block copolymer blends

Hyungju Ahn; Yonghoon Lee; Hoyeon Lee; Young Soo Han; Baek Seok Seong; Du Yeol Ryu

doi:10.1021/ma302514s

Various phase behaviors of weakly interacting binary block copolymer blends

Hyungju Ahn, Yonghoon Lee, Hoyeon Lee, Young Soo Han, Baek Seok Seong, Du Yeol Ryu

Department of Chemical and Biomolecular Engineering

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

14 Citations (Scopus)

Abstract

We investigated the phase behaviors of block copolymer (BCP) blends composed of the weakly interacting (with no specific interaction) polystyrene-b-poly(n-butyl methacrylate) (PS-b-PnBMA) and polystyrene-b-poly(n- hexyl methacrylate) (PS-b-PnHMA), using small-angle neutron scattering (SANS), small-angle X-ray scattering (SAXS), and depolarized light scattering (DPLS). A miscible phase between the PnBMA and PnHMA blocks in the BCP blends allows the various composition-dependent phase behaviors, which display a lower disorder-to-order transition (LDOT) to an order-to-disorder transition (ODT) on heating as the blend composition varies from PS-b-PnBMA to PS-b-PnHMA. In between these two extremes, intriguingly, the miscible PS-b-PnBMA/PS-b-PnHMA blends display a closed-loop phase transition consisting of a LDOT and an upper order-to-disorder transition (UODT).

Original language	English
Pages (from-to)	4454-4461
Number of pages	8
Journal	Macromolecules
Volume	46
Issue number	11
DOIs	https://doi.org/10.1021/ma302514s
Publication status	Published - 2013 Jun 11

All Science Journal Classification (ASJC) codes

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

Access to Document

10.1021/ma302514s

Fingerprint Dive into the research topics of 'Various phase behaviors of weakly interacting binary block copolymer blends'. Together they form a unique fingerprint.

Cite this

@article{f215bd5011ad43268db3b89edcb00216,

title = "Various phase behaviors of weakly interacting binary block copolymer blends",

abstract = "We investigated the phase behaviors of block copolymer (BCP) blends composed of the weakly interacting (with no specific interaction) polystyrene-b-poly(n-butyl methacrylate) (PS-b-PnBMA) and polystyrene-b-poly(n- hexyl methacrylate) (PS-b-PnHMA), using small-angle neutron scattering (SANS), small-angle X-ray scattering (SAXS), and depolarized light scattering (DPLS). A miscible phase between the PnBMA and PnHMA blocks in the BCP blends allows the various composition-dependent phase behaviors, which display a lower disorder-to-order transition (LDOT) to an order-to-disorder transition (ODT) on heating as the blend composition varies from PS-b-PnBMA to PS-b-PnHMA. In between these two extremes, intriguingly, the miscible PS-b-PnBMA/PS-b-PnHMA blends display a closed-loop phase transition consisting of a LDOT and an upper order-to-disorder transition (UODT).",

author = "Hyungju Ahn and Yonghoon Lee and Hoyeon Lee and Han, {Young Soo} and Seong, {Baek Seok} and Ryu, {Du Yeol}",

year = "2013",

month = jun,

day = "11",

doi = "10.1021/ma302514s",

language = "English",

volume = "46",

pages = "4454--4461",

journal = "Macromolecules",

issn = "0024-9297",

publisher = "American Chemical Society",

number = "11",

}

TY - JOUR

T1 - Various phase behaviors of weakly interacting binary block copolymer blends

AU - Ahn, Hyungju

AU - Lee, Yonghoon

AU - Lee, Hoyeon

AU - Han, Young Soo

AU - Seong, Baek Seok

AU - Ryu, Du Yeol

PY - 2013/6/11

Y1 - 2013/6/11

N2 - We investigated the phase behaviors of block copolymer (BCP) blends composed of the weakly interacting (with no specific interaction) polystyrene-b-poly(n-butyl methacrylate) (PS-b-PnBMA) and polystyrene-b-poly(n- hexyl methacrylate) (PS-b-PnHMA), using small-angle neutron scattering (SANS), small-angle X-ray scattering (SAXS), and depolarized light scattering (DPLS). A miscible phase between the PnBMA and PnHMA blocks in the BCP blends allows the various composition-dependent phase behaviors, which display a lower disorder-to-order transition (LDOT) to an order-to-disorder transition (ODT) on heating as the blend composition varies from PS-b-PnBMA to PS-b-PnHMA. In between these two extremes, intriguingly, the miscible PS-b-PnBMA/PS-b-PnHMA blends display a closed-loop phase transition consisting of a LDOT and an upper order-to-disorder transition (UODT).

AB - We investigated the phase behaviors of block copolymer (BCP) blends composed of the weakly interacting (with no specific interaction) polystyrene-b-poly(n-butyl methacrylate) (PS-b-PnBMA) and polystyrene-b-poly(n- hexyl methacrylate) (PS-b-PnHMA), using small-angle neutron scattering (SANS), small-angle X-ray scattering (SAXS), and depolarized light scattering (DPLS). A miscible phase between the PnBMA and PnHMA blocks in the BCP blends allows the various composition-dependent phase behaviors, which display a lower disorder-to-order transition (LDOT) to an order-to-disorder transition (ODT) on heating as the blend composition varies from PS-b-PnBMA to PS-b-PnHMA. In between these two extremes, intriguingly, the miscible PS-b-PnBMA/PS-b-PnHMA blends display a closed-loop phase transition consisting of a LDOT and an upper order-to-disorder transition (UODT).

UR - http://www.scopus.com/inward/record.url?scp=84878962499&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84878962499&partnerID=8YFLogxK

U2 - 10.1021/ma302514s

DO - 10.1021/ma302514s

M3 - Article

AN - SCOPUS:84878962499

VL - 46

SP - 4454

EP - 4461

JO - Macromolecules

JF - Macromolecules

SN - 0024-9297

IS - 11

ER -

Various phase behaviors of weakly interacting binary block copolymer blends

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Cite this