Chemical images and 2D-COS analysis of spin-coated PHBHx/PEG blend films

Park, Yeonju; Jin, Sila; Park, Eungyeong; Hwang, Myeongwon; Noda, Isao; Chea, Boknam; Jung, Young Mee

doi:10.1016/j.molstruc.2020.128344

Cited by 5 publications

(1 citation statement)

References 20 publications

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“…6 It was developed to analyze perturbation-induced spectral variation. 7,8 Through using this technique, spectral intensity is plotted as a function of two different spectral variables, such as wavenumber, frequency, or wavelength. 9 Then the simultaneous or sequential changes of the correlation intensity of spectral variations are derived as synchronous or asynchronous correlations.…”

Section: Introductionmentioning

confidence: 99%

Intermolecular Interactions in the Polymer Blends Under High-Pressure CO₂ Studied Using Two-Dimensional Correlation Analysis and Two-Dimensional Disrelation Mapping

Shinzawa

Kazarian

2021

Appl Spectrosc

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Exposing polymers to high-pressure and supercritical CO2 is a useful approach in polymer processing. Consequently, the mechanisms of polymer-polymer interaction under such conditions are worthy of further investigation. Two-dimensional (2D) correlation analysis and 2D disrelation mapping were applied to datasets of PCL(Polycaprolactone)/PLA (Poly(lactic acid)) blend with or without high-pressure CO2 obtained by in situ ATR-FTIR spectroscopic imaging. The relatively weak dipole-dipole intermolecular interactions between polymer molecules were visualized through the disrelation maps for the first time. Because of the specially designed polymer interface, the interactions between the same type of polymer molecules and different types of polymer molecules were differentiated. Under exposure to high-pressure CO2, all three types of interactions: interaction between PCL molecules and PLA molecules, interaction between PCL molecules and interaction between PLA molecules become weaker than those in the polymer interface without high-pressure CO2. The resulting increase in the Flory interaction parameter is the main cause of phase separation in the PCL/PLA blend under high-pressure CO2. The findings from this study will be of benefit for polymer processing with high-pressure and supercritical CO2.

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Section: Introductionmentioning

confidence: 99%

Intermolecular Interactions in the Polymer Blends Under High-Pressure CO₂ Studied Using Two-Dimensional Correlation Analysis and Two-Dimensional Disrelation Mapping

Shinzawa

Kazarian

2021

Appl Spectrosc

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Two‐Dimensional Correlation Spectroscopy: New Developments and Applications

Jung¹,

Noda²

2022

Encyclopedia of Analytical Chemistry

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This article outlines the recent progress in 2D correlation spectroscopy (2D‐COS), especially new and noteworthy developments and its applications. 2D‐COS is a powerful technique applicable to the in‐depth analysis of various spectral data, especially those obtained in various practical spectroscopic experiments. 2D‐COS has undergone rapid developments. This article highlights new types of 2D correlation analysis, such as combination of chemometrics and 2D‐COS, moving‐window 2D analysis, projection 2D analysis, hetero‐correlation analysis, 2D codistribution spectroscopy (2D‐CDS), smooth factor analysis (SFA), two‐trace two‐dimensional (2T2D) correlation spectroscopy, as well as experimental practices, such as various perturbation methods, fields of applications, and analytical probes employed.

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Curing mechanism of triglycidylamine crosslinked soybean protein adhesive analyzed by Fourier transform infrared, second derivative infrared and two-dimensional correlation spectroscopy

Yang

Huang

Cai

et al. 2021

International Journal of Adhesion and Adhesives

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Chemical images and 2D-COS analysis of spin-coated PHBHx/PEG blend films

Cited by 5 publications

References 20 publications

Intermolecular Interactions in the Polymer Blends Under High-Pressure CO₂ Studied Using Two-Dimensional Correlation Analysis and Two-Dimensional Disrelation Mapping

Intermolecular Interactions in the Polymer Blends Under High-Pressure CO₂ Studied Using Two-Dimensional Correlation Analysis and Two-Dimensional Disrelation Mapping

Two‐Dimensional Correlation Spectroscopy: New Developments and Applications

Curing mechanism of triglycidylamine crosslinked soybean protein adhesive analyzed by Fourier transform infrared, second derivative infrared and two-dimensional correlation spectroscopy

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Chemical images and 2D-COS analysis of spin-coated PHBHx/PEG blend films

Cited by 5 publications

References 20 publications

Intermolecular Interactions in the Polymer Blends Under High-Pressure CO2 Studied Using Two-Dimensional Correlation Analysis and Two-Dimensional Disrelation Mapping

Intermolecular Interactions in the Polymer Blends Under High-Pressure CO2 Studied Using Two-Dimensional Correlation Analysis and Two-Dimensional Disrelation Mapping

Two‐Dimensional Correlation Spectroscopy: New Developments and Applications

Curing mechanism of triglycidylamine crosslinked soybean protein adhesive analyzed by Fourier transform infrared, second derivative infrared and two-dimensional correlation spectroscopy

Contact Info

Product

Resources

About

Intermolecular Interactions in the Polymer Blends Under High-Pressure CO₂ Studied Using Two-Dimensional Correlation Analysis and Two-Dimensional Disrelation Mapping

Intermolecular Interactions in the Polymer Blends Under High-Pressure CO₂ Studied Using Two-Dimensional Correlation Analysis and Two-Dimensional Disrelation Mapping