Towards Tailored Dialdehyde Cellulose Derivatives: A Strategy for Tuning the Glass Transition Temperature

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date

2024-03-08

Department

Department of Bioproducts and Biosystems

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Language

en

Pages

7

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ChemSusChem, Volume 17, issue 5

Abstract

The derivatization of dialdehyde cellulose (DAC) has received increasing attention in the development of sustainable thermoplastics. In this study, a series of dialcohol celluloses were generated by borohydride reduction, which exhibited glass transition temperature (Tg) values ranging from 23 to 109 °C, depending on the initial degree of oxidation (DO) of the DAC intermediate. However, the DAC derivatives did not exhibit thermoplastic behavior when the DO of the modified DAC was below 26 %. The influence of introduced side chains was highlighted by comparing DAC-based thermoplastic materials obtained by either oximation or borohydride reduction. Our results provide insights into the generation of DAC-based thermoplastics and highlight a strategy for tailoring the Tg by adjusting the DO during the periodate oxidation step and selecting appropriate substituents in subsequent modifications.

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Funding Information: . We kindly thank Business Finland and UPM‐Kymmene Oyj (Finland) for their financial support and gratefully acknowledge the support by the BOKU doctoral school ABC&M and the Austrian Biorefinery Center Tulln (ABCT). We also thank Dr. Markus Bacher for his help with the NMR measurements Publisher Copyright: © 2023 The Authors. ChemSusChem published by Wiley-VCH GmbH.

Keywords

glass transition temperature, material science, periodate oxidation, renewable resources, thermoplastic polymers

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DOI

10.1002/cssc.202300791

Citation

Simon, J, Schlapp-Hackl, I, Sapkota, J, Ristolainen, M, Rosenau, T & Potthast, A 2024, 'Towards Tailored Dialdehyde Cellulose Derivatives: A Strategy for Tuning the Glass Transition Temperature', ChemSusChem, vol. 17, no. 5, e202300791. https://doi.org/10.1002/cssc.202300791

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https://urn.fi/URN:NBN:fi:aalto-202404243209

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[article-cris] Kemian tekniikan korkeakoulu / CHEM