Confocal raman microscopy of liquid-crystal-filled polymer capsules made by photo-enforced stratification

A.J.G. Mank; I. Vorstenbosch; R. Penterman; J.P.A. Vogels; S.I. Klink; D.J. Broer

doi:10.1366/0003702054615304

Confocal raman microscopy of liquid-crystal-filled polymer capsules made by photo-enforced stratification

A.J.G. Mank, I. Vorstenbosch, R. Penterman, J.P.A. Vogels, S.I. Klink, D.J. Broer

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

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Abstract

The applicability of confocal Raman microscopy for characterizing thin liquid-crystal (LC) filled polymer capsules obtained by photoenforced stratification is demonstrated. The investigated structure consists of an array of polymer capsules (typical size 500 × 500 × 20 μm) filled with LC material and is made by photopolymerization of a mixture of monomers and LC. Such an array can be used as the electro-optical component in liquid crystal displays. Confocal Raman microscopy does not require complex sample preparation, is non-invasive, and is shown to have adequate spatial and depth resolution. Although Raman spectroscopy is inherently insensitive, the use of data preprocessing and computational modeling makes it possible to quantify both the conversion of monomer to polymer and the compositions of both the polymer-rich and the LC-rich phase.

Original language	English
Pages (from-to)	965-975
Number of pages	11
Journal	Applied Spectroscopy
Volume	59
Issue number	8
DOIs	https://doi.org/10.1366/0003702054615304
Publication status	Published - 1 Aug 2005

Keywords

Data preprocessing
Display
Liquid crystal
Polymer
Raman spectroscopy

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10.1366/0003702054615304

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title = "Confocal raman microscopy of liquid-crystal-filled polymer capsules made by photo-enforced stratification",

abstract = "The applicability of confocal Raman microscopy for characterizing thin liquid-crystal (LC) filled polymer capsules obtained by photoenforced stratification is demonstrated. The investigated structure consists of an array of polymer capsules (typical size 500 × 500 × 20 μm) filled with LC material and is made by photopolymerization of a mixture of monomers and LC. Such an array can be used as the electro-optical component in liquid crystal displays. Confocal Raman microscopy does not require complex sample preparation, is non-invasive, and is shown to have adequate spatial and depth resolution. Although Raman spectroscopy is inherently insensitive, the use of data preprocessing and computational modeling makes it possible to quantify both the conversion of monomer to polymer and the compositions of both the polymer-rich and the LC-rich phase.",

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AU - Mank, A.J.G.

AU - Vorstenbosch, I.

AU - Penterman, R.

AU - Vogels, J.P.A.

AU - Klink, S.I.

AU - Broer, D.J.

PY - 2005/8/1

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N2 - The applicability of confocal Raman microscopy for characterizing thin liquid-crystal (LC) filled polymer capsules obtained by photoenforced stratification is demonstrated. The investigated structure consists of an array of polymer capsules (typical size 500 × 500 × 20 μm) filled with LC material and is made by photopolymerization of a mixture of monomers and LC. Such an array can be used as the electro-optical component in liquid crystal displays. Confocal Raman microscopy does not require complex sample preparation, is non-invasive, and is shown to have adequate spatial and depth resolution. Although Raman spectroscopy is inherently insensitive, the use of data preprocessing and computational modeling makes it possible to quantify both the conversion of monomer to polymer and the compositions of both the polymer-rich and the LC-rich phase.

AB - The applicability of confocal Raman microscopy for characterizing thin liquid-crystal (LC) filled polymer capsules obtained by photoenforced stratification is demonstrated. The investigated structure consists of an array of polymer capsules (typical size 500 × 500 × 20 μm) filled with LC material and is made by photopolymerization of a mixture of monomers and LC. Such an array can be used as the electro-optical component in liquid crystal displays. Confocal Raman microscopy does not require complex sample preparation, is non-invasive, and is shown to have adequate spatial and depth resolution. Although Raman spectroscopy is inherently insensitive, the use of data preprocessing and computational modeling makes it possible to quantify both the conversion of monomer to polymer and the compositions of both the polymer-rich and the LC-rich phase.

KW - Data preprocessing

KW - Display

KW - Liquid crystal

KW - Polymer

KW - Raman spectroscopy

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DO - 10.1366/0003702054615304

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Confocal raman microscopy of liquid-crystal-filled polymer capsules made by photo-enforced stratification

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Keywords

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