Distribution of nanoparticles in lamellar domains of block copolymers

Julia J. Chiu; Bumjoon J. Kim; Gi Ra Yi; Joona Bang; Edward J. Kramer; David J. Pine

doi:10.1021/ma061503d

Distribution of nanoparticles in lamellar domains of block copolymers

Julia J. Chiu, Bumjoon J. Kim, Gi Ra Yi, Joona Bang, Edward J. Kramer, David J. Pine

Chemical and Biomolecular Engineering

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

Abstract

Polystyrene-coated gold nanoparticles (molecular weight (M_n) of PS ∼ 1300 g/mol, average particle diameter d (core + shell) ∼ 9.2 ± 2.2 nm, corresponding to a high areal chain density of PS) are incorporated into symmetric poly(styrene-b-2 vinylpyridine) diblock copolymers with total M_n ∼ 60 000-380 000 g/mol at volume fractions of 0.07-0.32. For all M_n of diblock copolymers and particle filling fractions examined, particles are centralized in the PS domains with Gaussian distribution profiles. The distribution width generally decreases as the PS domain size decreases or as the particle weight fraction increases. These observations are discussed in terms of the relative entropic contributions of the polymer chains and particles.

Original language	English (US)
Pages (from-to)	3361-3365
Number of pages	5
Journal	Macromolecules
Volume	40
Issue number	9
DOIs	https://doi.org/10.1021/ma061503d
State	Published - May 1 2007

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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10.1021/ma061503d

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title = "Distribution of nanoparticles in lamellar domains of block copolymers",

abstract = "Polystyrene-coated gold nanoparticles (molecular weight (Mn) of PS ∼ 1300 g/mol, average particle diameter d (core + shell) ∼ 9.2 ± 2.2 nm, corresponding to a high areal chain density of PS) are incorporated into symmetric poly(styrene-b-2 vinylpyridine) diblock copolymers with total Mn ∼ 60 000-380 000 g/mol at volume fractions of 0.07-0.32. For all Mn of diblock copolymers and particle filling fractions examined, particles are centralized in the PS domains with Gaussian distribution profiles. The distribution width generally decreases as the PS domain size decreases or as the particle weight fraction increases. These observations are discussed in terms of the relative entropic contributions of the polymer chains and particles.",

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T1 - Distribution of nanoparticles in lamellar domains of block copolymers

AU - Chiu, Julia J.

AU - Kim, Bumjoon J.

AU - Yi, Gi Ra

AU - Bang, Joona

AU - Kramer, Edward J.

AU - Pine, David J.

PY - 2007/5/1

Y1 - 2007/5/1

N2 - Polystyrene-coated gold nanoparticles (molecular weight (Mn) of PS ∼ 1300 g/mol, average particle diameter d (core + shell) ∼ 9.2 ± 2.2 nm, corresponding to a high areal chain density of PS) are incorporated into symmetric poly(styrene-b-2 vinylpyridine) diblock copolymers with total Mn ∼ 60 000-380 000 g/mol at volume fractions of 0.07-0.32. For all Mn of diblock copolymers and particle filling fractions examined, particles are centralized in the PS domains with Gaussian distribution profiles. The distribution width generally decreases as the PS domain size decreases or as the particle weight fraction increases. These observations are discussed in terms of the relative entropic contributions of the polymer chains and particles.

AB - Polystyrene-coated gold nanoparticles (molecular weight (Mn) of PS ∼ 1300 g/mol, average particle diameter d (core + shell) ∼ 9.2 ± 2.2 nm, corresponding to a high areal chain density of PS) are incorporated into symmetric poly(styrene-b-2 vinylpyridine) diblock copolymers with total Mn ∼ 60 000-380 000 g/mol at volume fractions of 0.07-0.32. For all Mn of diblock copolymers and particle filling fractions examined, particles are centralized in the PS domains with Gaussian distribution profiles. The distribution width generally decreases as the PS domain size decreases or as the particle weight fraction increases. These observations are discussed in terms of the relative entropic contributions of the polymer chains and particles.

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Distribution of nanoparticles in lamellar domains of block copolymers

Abstract

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