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The effects of physical and chemical interactions in the formation of cellulose aerogels

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Abstract

Aerogels are low density materials which are produced from wet gels, and find a variety of potential uses. The relative importance of shape/geometry and self-association of the starting materials for the production of aerogels is studied herein. Aerogels were produced from microcrystalline cellulose (MCC) and its functionalized analog, carboxymethyl cellulose (CMC). With increasing functionalization, CMC gains the potential for self-association, differentiating itself from MCC. The present study explores the preparation of aerogels from MCC and CMC, comparing performance with and without significant self-association potential, and more broadly evaluating the production of low density structural materials from renewable cellulose. It was observed that the self-association present in CMC substantially increases aerogel mechanical properties when compared those of non-interactive MCC. Aspect ratio is proposed to also be an import parameter in the structure–property relationship for these materials.

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Authors and Affiliations

  1. Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, OH, 44106, USA

    Warut Surapolchai & David A. Schiraldi

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  1. Warut Surapolchai
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  2. David A. Schiraldi
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Correspondence to David A. Schiraldi.

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Surapolchai, W., Schiraldi, D.A. The effects of physical and chemical interactions in the formation of cellulose aerogels. Polym. Bull. 65, 951–960 (2010). https://doi.org/10.1007/s00289-010-0306-x

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  • DOI: https://doi.org/10.1007/s00289-010-0306-x

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