Solvent-driven evolution of block copolymer morphology under 3D confinement

Le Li; Kazuyuki Matsunaga; Jintao Zhu; Takeshi Higuchi; Hiroshi Yabu; Masatsugu Shimomura; Hiroshi Jinnai; Ryan C. Hayward; Thomas P. Russell

doi:10.1021/ma101529b

Solvent-driven evolution of block copolymer morphology under 3D confinement

Le Li, Kazuyuki Matsunaga, Jintao Zhu, Takeshi Higuchi, Hiroshi Yabu, Masatsugu Shimomura, Hiroshi Jinnai, Ryan C. Hayward, Thomas P. Russell

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

126 Citations (Scopus)

Abstract

Nanoparticles with concentric layered structures were generated from a lamellae-forming poly(styrene-b-isoprene) diblock copolymer using controlled precipitation from a tetrahydrofuran/water mixture. Chloroform, a good solvent for both blocks, was used to swell and anneal the nanoparticles suspended in aqueous media. The three-dimensional morphologies of particles were reconstructed by transmission electron microtomography throughout the process of solvent annealing. A transition from concentric lamellae to PI cylinders in a PS matrix occurred upon annealing, presumably due to a slight selectivity of chloroform for PS. These cylindrical microdomains were further divided into PS-core-PI-shell spherical structures in a PS matrix upon extended annealing, a structure that is unique among reported microphase separated morphologies of diblock copolymers.

Original language	English
Pages (from-to)	7807-7812
Number of pages	6
Journal	Macromolecules
Volume	43
Issue number	18
DOIs	https://doi.org/10.1021/ma101529b
Publication status	Published - 2010 Sept 28

Access to Document

10.1021/ma101529b

Cite this

@article{12a33a29fec24e70ab128e1bc41240b2,

title = "Solvent-driven evolution of block copolymer morphology under 3D confinement",

abstract = "Nanoparticles with concentric layered structures were generated from a lamellae-forming poly(styrene-b-isoprene) diblock copolymer using controlled precipitation from a tetrahydrofuran/water mixture. Chloroform, a good solvent for both blocks, was used to swell and anneal the nanoparticles suspended in aqueous media. The three-dimensional morphologies of particles were reconstructed by transmission electron microtomography throughout the process of solvent annealing. A transition from concentric lamellae to PI cylinders in a PS matrix occurred upon annealing, presumably due to a slight selectivity of chloroform for PS. These cylindrical microdomains were further divided into PS-core-PI-shell spherical structures in a PS matrix upon extended annealing, a structure that is unique among reported microphase separated morphologies of diblock copolymers.",

author = "Le Li and Kazuyuki Matsunaga and Jintao Zhu and Takeshi Higuchi and Hiroshi Yabu and Masatsugu Shimomura and Hiroshi Jinnai and Hayward, {Ryan C.} and Russell, {Thomas P.}",

year = "2010",

month = sep,

day = "28",

doi = "10.1021/ma101529b",

language = "English",

volume = "43",

pages = "7807--7812",

journal = "Macromolecules",

issn = "0024-9297",

publisher = "American Chemical Society",

number = "18",

}

TY - JOUR

T1 - Solvent-driven evolution of block copolymer morphology under 3D confinement

AU - Li, Le

AU - Matsunaga, Kazuyuki

AU - Zhu, Jintao

AU - Higuchi, Takeshi

AU - Yabu, Hiroshi

AU - Shimomura, Masatsugu

AU - Jinnai, Hiroshi

AU - Hayward, Ryan C.

AU - Russell, Thomas P.

PY - 2010/9/28

Y1 - 2010/9/28

N2 - Nanoparticles with concentric layered structures were generated from a lamellae-forming poly(styrene-b-isoprene) diblock copolymer using controlled precipitation from a tetrahydrofuran/water mixture. Chloroform, a good solvent for both blocks, was used to swell and anneal the nanoparticles suspended in aqueous media. The three-dimensional morphologies of particles were reconstructed by transmission electron microtomography throughout the process of solvent annealing. A transition from concentric lamellae to PI cylinders in a PS matrix occurred upon annealing, presumably due to a slight selectivity of chloroform for PS. These cylindrical microdomains were further divided into PS-core-PI-shell spherical structures in a PS matrix upon extended annealing, a structure that is unique among reported microphase separated morphologies of diblock copolymers.

AB - Nanoparticles with concentric layered structures were generated from a lamellae-forming poly(styrene-b-isoprene) diblock copolymer using controlled precipitation from a tetrahydrofuran/water mixture. Chloroform, a good solvent for both blocks, was used to swell and anneal the nanoparticles suspended in aqueous media. The three-dimensional morphologies of particles were reconstructed by transmission electron microtomography throughout the process of solvent annealing. A transition from concentric lamellae to PI cylinders in a PS matrix occurred upon annealing, presumably due to a slight selectivity of chloroform for PS. These cylindrical microdomains were further divided into PS-core-PI-shell spherical structures in a PS matrix upon extended annealing, a structure that is unique among reported microphase separated morphologies of diblock copolymers.

UR - http://www.scopus.com/inward/record.url?scp=78651340622&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78651340622&partnerID=8YFLogxK

U2 - 10.1021/ma101529b

DO - 10.1021/ma101529b

M3 - Article

AN - SCOPUS:78651340622

SN - 0024-9297

VL - 43

SP - 7807

EP - 7812

JO - Macromolecules

JF - Macromolecules

IS - 18

ER -

Solvent-driven evolution of block copolymer morphology under 3D confinement

Abstract

Access to Document

Other files and links

Fingerprint

Cite this