Molecular <i>in situ</i> monitoring of the pH-triggered response in adaptive polymers by two-dimensional Raman micro-correlation-spectroscopy

Hniopek, Julian; Meurer, Josefine; Zechel, Stefan; Schmitt, Michael; Hager, Martin D.; Popp, Juergen

doi:10.1039/d3sc01455j

Cited by 5 publications

References 45 publications

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Hydrolyzation‐Free Characterization of Acetalated Dextran via 2D Correlated Raman Spectroscopy

Plitzko,

Köhler,

Meyer‐Zedler

et al. 2024

J Raman Spectroscopy

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This study demonstrates a hydrolysis‐free approach for characterizing acetalated dextran derivatives using Raman spectroscopy combined with two‐dimensional correlation spectroscopy (2D‐COS). Traditional methods like 1H‐NMR spectroscopy rely on hydrolysis and are constrained by the time‐sensitive detection of volatile acetone. Raman spectroscopy, as a non‐destructive technique, was applied to analyze time‐dependent acetalation of methoxy and ethoxy acetalated dextran derivatives (AcDex and AceDex). By employing 2D‐COS, time‐resolved Raman spectral changes revealed key marker bands associated with kinetic (acyclic) and thermodynamic (cyclic) substitution products. The observed Raman peak ratios corresponded well with those derived from 1H‐NMR spectroscopy, confirming the accuracy of the method. This approach not only eliminates the need for hydrolysis but also provides a robust, time‐independent tool for tracking acetalation, enabling precise control over polymer properties. The findings underscore the potential for Raman spectroscopy in real‐time monitoring and optimization of dextran‐based polymer synthesis.

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Hydrolyzation‐Free Characterization of Acetalated Dextran via 2D Correlated Raman Spectroscopy

Plitzko,

Köhler,

Meyer‐Zedler

et al. 2024

J Raman Spectroscopy

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Visualization of the sequence of changes in the full wavenumber range by two-dimensional correlation spectroscopy

Ban,

Miyata,

Matsumoto

et al. 2023

Chemical Physics Letters

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Enhanced 3-D asynchronous correlation data preprocessing method for Raman spectroscopy of Chinese handmade paper

Yan,

Cheng,

Cao

et al. 2024

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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Molecular in situ monitoring of the pH-triggered response in adaptive polymers by two-dimensional Raman micro-correlation-spectroscopy

Abstract: Stimuli-responsive polymers can switch specific physical properties in response to a change of the environmental conditions. Such behavior is offering unique advantages in applications where adaptive materials are needed. To...

Cited by 5 publications

References 45 publications

Hydrolyzation‐Free Characterization of Acetalated Dextran via 2D Correlated Raman Spectroscopy

Hydrolyzation‐Free Characterization of Acetalated Dextran via 2D Correlated Raman Spectroscopy

Visualization of the sequence of changes in the full wavenumber range by two-dimensional correlation spectroscopy

Enhanced 3-D asynchronous correlation data preprocessing method for Raman spectroscopy of Chinese handmade paper

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