Literature DB >> 16257048

Effect of organic and inorganic acids on concentrated chitosan solutions and gels.

Mélina Hamdine1, Marie-Claude Heuzey, André Bégin.   

Abstract

Rheological properties of concentrated chitosan aqueous solutions and gels in the presence of different organic and inorganic acids were investigated. Viscosities of the solutions increased with polymer concentration and degree of ionization. Strong gels were obtained at pH around 2 with oxalic, phosphoric and sulfuric acids. Gelation was favored by simple and short chain length acids and was governed by ionic interactions. The gels could be distinguished from solutions by the frequency independence of their dynamic moduli and their high apparent activation energy for flow.

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Year:  2005        PMID： 16257048     DOI： 10.1016/j.ijbiomac.2005.09.009

Source DB:  PubMed          Journal:  Int J Biol Macromol        ISSN： 0141-8130            Impact factor:   6.953


  10 in total

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2.  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
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4.  Temperature shifts for extraction and purification of zygomycetes chitosan with dilute sulfuric acid.

Authors:  Akram Zamani; Lars Edebo; Claes Niklasson; Mohammad J Taherzadeh
Journal:  Int J Mol Sci       Date:  2010-08-13       Impact factor: 5.923

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Journal:  J Mater Chem       Date:  2012-10-07

6.  Preparation of Nanocellulose Reinforced Chitosan Films, Cross-Linked by Adipic Acid.

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Authors:  Jiaojing Zhang; Hua Song; Yanguang Chen; Tianzhen Hao; Feng Li; Dandan Yuan; Xueqin Wang; Liang Zhao; Jinsen Gao
Journal:  RSC Adv       Date:  2018-11-20       Impact factor: 4.036

8.  The effect of organic acids and storage temperature on lite salad dressing rheology and Zygosaccharomyces parabailii growth.

Authors:  Alexander D Meldrum; Gülhan Ünlü; Helen Joyner
Journal:  J Food Sci Technol       Date:  2022-05-10       Impact factor: 3.117

9.  New Solvent and Coagulating Agent for Development of Chitosan Fibers by Wet Spinning.

Authors:  Ghasem Mohammadkhani; Sunil Kumar Ramamoorthy; Karin H Adolfsson; Amir Mahboubi; Minna Hakkarainen; Akram Zamani
Journal:  Polymers (Basel)       Date:  2021-06-28       Impact factor: 4.329

10.  Chemomechanical Polymers as Sensors and Actuators for Biological and Medicinal Applications.

Authors:  Hans-Jörg Schneider; Kazuaki Kato; Robert M Strongin
Journal:  Sensors (Basel)       Date:  2007       Impact factor: 3.576
  10 in total

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