Mixtures of diblock copolymer micelles by different mixing protocols

Seong Il Yoo; Byeong Hyeok Sohn; Wang Cheol Zin; Jin Chul Jung; Cheolmin Park

doi:10.1021/ma071534o

Mixtures of diblock copolymer micelles by different mixing protocols

Seong Il Yoo, Byeong Hyeok Sohn, Wang Cheol Zin, Jin Chul Jung, Cheolmin Park

Department of Materials Science and Engineering

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

43 Citations (Scopus)

Abstract

A size distribution of a binary mixture of polystyrene-block-poly(4- vinylpyridine) (PS-P4VP) diblock copolymer micelles was investigated mainly by transmission electron microscopy. A single-layered film of PS-P4VP micelles fabricated by spin-coating enabled a precise measurement of the micellar size. Depending on the mixing protocols, a mixture of pristine small and large micelles or a mixture of pure small micelles and hybridized micelles were formed due to the difference in the kinetics of micelle formation between the copolymers having short and long insoluble P4VP blocks. In addition, the kinetically frozen micelles excluded further evolution of the micelles produced. We also demonstrated feasible creation of an ordered array of copolymer micelles with the mixing protocol which produced nonhybridizing micelles.

Original language	English
Pages (from-to)	8323-8328
Number of pages	6
Journal	Macromolecules
Volume	40
Issue number	23
DOIs	https://doi.org/10.1021/ma071534o
Publication status	Published - 2007 Nov 13

All Science Journal Classification (ASJC) codes

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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10.1021/ma071534o

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title = "Mixtures of diblock copolymer micelles by different mixing protocols",

abstract = "A size distribution of a binary mixture of polystyrene-block-poly(4- vinylpyridine) (PS-P4VP) diblock copolymer micelles was investigated mainly by transmission electron microscopy. A single-layered film of PS-P4VP micelles fabricated by spin-coating enabled a precise measurement of the micellar size. Depending on the mixing protocols, a mixture of pristine small and large micelles or a mixture of pure small micelles and hybridized micelles were formed due to the difference in the kinetics of micelle formation between the copolymers having short and long insoluble P4VP blocks. In addition, the kinetically frozen micelles excluded further evolution of the micelles produced. We also demonstrated feasible creation of an ordered array of copolymer micelles with the mixing protocol which produced nonhybridizing micelles.",

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T1 - Mixtures of diblock copolymer micelles by different mixing protocols

AU - Yoo, Seong Il

AU - Sohn, Byeong Hyeok

AU - Zin, Wang Cheol

AU - Jung, Jin Chul

AU - Park, Cheolmin

PY - 2007/11/13

Y1 - 2007/11/13

N2 - A size distribution of a binary mixture of polystyrene-block-poly(4- vinylpyridine) (PS-P4VP) diblock copolymer micelles was investigated mainly by transmission electron microscopy. A single-layered film of PS-P4VP micelles fabricated by spin-coating enabled a precise measurement of the micellar size. Depending on the mixing protocols, a mixture of pristine small and large micelles or a mixture of pure small micelles and hybridized micelles were formed due to the difference in the kinetics of micelle formation between the copolymers having short and long insoluble P4VP blocks. In addition, the kinetically frozen micelles excluded further evolution of the micelles produced. We also demonstrated feasible creation of an ordered array of copolymer micelles with the mixing protocol which produced nonhybridizing micelles.

AB - A size distribution of a binary mixture of polystyrene-block-poly(4- vinylpyridine) (PS-P4VP) diblock copolymer micelles was investigated mainly by transmission electron microscopy. A single-layered film of PS-P4VP micelles fabricated by spin-coating enabled a precise measurement of the micellar size. Depending on the mixing protocols, a mixture of pristine small and large micelles or a mixture of pure small micelles and hybridized micelles were formed due to the difference in the kinetics of micelle formation between the copolymers having short and long insoluble P4VP blocks. In addition, the kinetically frozen micelles excluded further evolution of the micelles produced. We also demonstrated feasible creation of an ordered array of copolymer micelles with the mixing protocol which produced nonhybridizing micelles.

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Mixtures of diblock copolymer micelles by different mixing protocols

Abstract

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