Literature DB >> 12959591

Michael reaction of chitosan with various acryl reagents in water.

Hitoshi Sashiwa1, Naoki Yamamori, Yoshifumi Ichinose, Junzo Sunamoto, Sei-ichi Aiba.   

Abstract

A Michael reaction of chitosan was conducted in water containing acetic acid with various acryl reagents. The degree of substitution could be controlled by temperature, reaction time, and the amount of acryl reagents. Although the modified chitosan derivatives with acrylic acid esters showed water-solubility, that with poly(ethylene glycol) acrylate, however, turned to water-insoluble material by lyophilization. Good biodegradation was observed in modified chitosan derivatives by standard activated sludge.

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Year:  2003        PMID： 12959591     DOI： 10.1021/bm030022o

Source DB:  PubMed          Journal:  Biomacromolecules        ISSN： 1525-7797            Impact factor:   6.988


  5 in total

1.  Symmetric pH-dependent swelling and antibacterial properties of chitosan brushes.

Authors:  Hyun-Su Lee; David M Eckmann; Daeyeon Lee; Noreen J Hickok; Russell J Composto
Journal:  Langmuir       Date:  2011-09-22       Impact factor: 3.882

2.  Reversible Swelling of Chitosan and Quaternary Ammonium Modified Chitosan Brush Layers: Effect of pH and Counter Anion Size and Functionality.

Authors:  Hyun-Su Lee; Michael Q Yee; Yonaton Y Eckmann; Noreen J Hickok; David M Eckmann; Russell J Composto
Journal:  J Mater Chem       Date:  2012-10-07

3.  Structure and self-assembly properties of a new chitosan-based amphiphile.

Authors:  Yuping Huang; Hailong Yu; Liang Guo; Qingrong Huang
Journal:  J Phys Chem B       Date:  2010-06-17       Impact factor: 2.991

4.  Solvent-free synthesis and characterization of allyl chitosan derivatives.

Authors:  Tatiana A Akopova; Tatiana S Demina; Georgii V Cherkaev; Mukhamed A Khavpachev; Kseniya N Bardakova; Andrey V Grachev; Leonid V Vladimirov; Alexander N Zelenetskii; Petr S Timashev
Journal:  RSC Adv       Date:  2019-07-04       Impact factor: 4.036

5.  Thermoreversible poly(ethylene glycol)-g-chitosan hydrogel as a therapeutic T lymphocyte depot for localized glioblastoma immunotherapy.

Authors:  Ching-Ting Tsao; Forrest M Kievit; Ali Ravanpay; Ariane E Erickson; Michael C Jensen; Richard G Ellenbogen; Miqin Zhang
Journal:  Biomacromolecules       Date:  2014-06-25       Impact factor: 6.988
  5 in total

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