Direct imaging of polyethylene crystallites within block copolymer microdomains

Yueh Lin Loo; Richard Alan Register; Douglas H. Adamson

doi:10.1002/1099-0488(20001001)38:19<2564::AID-POLB80>3.0.CO;2-Y

Direct imaging of polyethylene crystallites within block copolymer microdomains

Yueh Lin Loo, Richard Alan Register, Douglas H. Adamson

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

39 Scopus citations

Abstract

Ruthenium tetroxide (RuO₄) is a versatile agent for imparting mass density contrast to saturated hydrocarbon polymers. We have successfully employed RuO₄ to examine the microdomain and crystallite morphologies of poly(ethylene-block-vinylcyclohexane) semicrystalline-glassy diblock copolymers via transmission electron microscopy (TEM). Ultrathin sections cut from blocks stained with RuO₄ showed excellent contrast in TEM, revealing the individual polyethylene crystallites that formed within the preexisting block copolymer microdomains. The size and orientation of the crystallites, which previously could only be inferred from scattering data, are readily apparent in the micrographs. Moreover, such imaging directly reveals the lateral extent of the crystallites and the number of crystallites lying within the cross section of each microdomain.

Original language	English (US)
Pages (from-to)	2564-2570
Number of pages	7
Journal	Journal of Polymer Science, Part B: Polymer Physics
Volume	38
Issue number	19
DOIs	https://doi.org/10.1002/1099-0488(20001001)38:19<2564::AID-POLB80>3.0.CO;2-Y
State	Published - Oct 1 2000

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Physical and Theoretical Chemistry
Polymers and Plastics
Materials Chemistry

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10.1002/1099-0488(20001001)38:19<2564::AID-POLB80>3.0.CO;2-Y

Cite this

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abstract = "Ruthenium tetroxide (RuO4) is a versatile agent for imparting mass density contrast to saturated hydrocarbon polymers. We have successfully employed RuO4 to examine the microdomain and crystallite morphologies of poly(ethylene-block-vinylcyclohexane) semicrystalline-glassy diblock copolymers via transmission electron microscopy (TEM). Ultrathin sections cut from blocks stained with RuO4 showed excellent contrast in TEM, revealing the individual polyethylene crystallites that formed within the preexisting block copolymer microdomains. The size and orientation of the crystallites, which previously could only be inferred from scattering data, are readily apparent in the micrographs. Moreover, such imaging directly reveals the lateral extent of the crystallites and the number of crystallites lying within the cross section of each microdomain.",

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AU - Register, Richard Alan

AU - Adamson, Douglas H.

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N2 - Ruthenium tetroxide (RuO4) is a versatile agent for imparting mass density contrast to saturated hydrocarbon polymers. We have successfully employed RuO4 to examine the microdomain and crystallite morphologies of poly(ethylene-block-vinylcyclohexane) semicrystalline-glassy diblock copolymers via transmission electron microscopy (TEM). Ultrathin sections cut from blocks stained with RuO4 showed excellent contrast in TEM, revealing the individual polyethylene crystallites that formed within the preexisting block copolymer microdomains. The size and orientation of the crystallites, which previously could only be inferred from scattering data, are readily apparent in the micrographs. Moreover, such imaging directly reveals the lateral extent of the crystallites and the number of crystallites lying within the cross section of each microdomain.

AB - Ruthenium tetroxide (RuO4) is a versatile agent for imparting mass density contrast to saturated hydrocarbon polymers. We have successfully employed RuO4 to examine the microdomain and crystallite morphologies of poly(ethylene-block-vinylcyclohexane) semicrystalline-glassy diblock copolymers via transmission electron microscopy (TEM). Ultrathin sections cut from blocks stained with RuO4 showed excellent contrast in TEM, revealing the individual polyethylene crystallites that formed within the preexisting block copolymer microdomains. The size and orientation of the crystallites, which previously could only be inferred from scattering data, are readily apparent in the micrographs. Moreover, such imaging directly reveals the lateral extent of the crystallites and the number of crystallites lying within the cross section of each microdomain.

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Direct imaging of polyethylene crystallites within block copolymer microdomains

Abstract

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