Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): Muzaffer Ahmet Karaaslan; Mandla A. TshabalalaDaniel J. Yelle; Gisela Buschle-Diller
    Date: 2011
    Source: Carbohydrate polymers. Vol. 86, no. 1 (Aug. 1, 2011): p. 192-201.
    Publication Series: Scientific Journal (JRNL)
    PDF: View PDF  (1.2 MB)

    Description

    Nanoreinforced hydrogels with a unique network structure were prepared from wood cellulose whiskers coated with chemically modified wood hemicelluloses. The hemicelluloses were modified with 2-hydroxyethylmethacrylate prior to adsorption onto the cellulose whiskers in aqueous medium. Synthesis of the hydrogels was accomplished by in situ radical polymerization of the methacrylic groups of the adsorbed coating to form a network of poly(2-hydroxyethylmethacrylate) (PHEMA) matrix reinforced with cellulose whiskers. The mechanical, swelling and viscoelastic properties, of water-swollen hydrogels were investigated. Results indicated that the number of effective crosslinks between polymer chains and the average chain length between crosslinking points was significantly different from PHEMA hydrogels that had been crosslinked by a conventional chemical method, using a cross-linking agent. The resulting hydrogels had enhanced toughness, increased viscoelasticity, and improved recovery behavior. With respect to the mechanical and swelling properties, it can be hypothesized that these nanoreinforced PHEMA hydrogels have potential for use in load-bearing biomedical applications such as articular cartilage replacement.

    Publication Notes

    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Karaaslan, Muzaffer Ahmet; Tshabalala, Mandla A.; Yelle, Daniel J.; Buschle-Diller, Gisela. 2011. Nanoreinforced biocompatible hydrogels from wood hemicelluloses and cellulose whiskers. Carbohydrate polymers. Vol. 86, no. 1 (Aug. 1, 2011): p. 192-201.

    Cited

    Google Scholar

    Keywords

    Hemicellulose, cellulose whiskers, PHEMA, hydrogels, articular cartilage, cellulose, nanotechnology, adsorption, mechanical properties, viscoelasticity, crosslinking, biotechnology, biomedical materials, aspen, Populus, nanostructured materials, nanocomposites, monomers, nanocrystals, colloids, biorefining, chemical modification of wood, poly(2-hydroxyethylmethacrylate), polymers, polymerization, swelling, hydroxyethylmethacrylate, HEMA

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page