Biodegradable blends based on chitin and chitosan: Production, structure, and properties

2011 ◽  
Vol 121 (3) ◽  
pp. 1850-1859 ◽  
Author(s):  
Svetlana Z. Rogovina ◽  
Christine V. Alexanyan ◽  
Eduard V. Prut
Keyword(s):  
Production Structure ◽  
Structure And Properties ◽  
Chitin And Chitosan ◽  
Biodegradable Blends

scholarly journals Chitosan Derivatives: Introducing New Functionalities with a Controlled Molecular Architecture for Innovative Materials †

2018 ◽  
Author(s):  
Waldo M. Argüelles-Monal ◽  
Jaime Lizardi-Mendoza ◽  
Daniel Fernández-Quiroz ◽  
Maricarmen T. Recillas-Mota ◽  
Marcelino Montiel-Herrera
Keyword(s):  
Chemical Structure ◽  
Molecular Architecture ◽  
Structure And Properties ◽  
New Materials ◽  
Important Condition ◽  
Experimental Conditions ◽  
Innovative Materials ◽  
Chitin And Chitosan ◽  
Macromolecular Architecture ◽  
Advanced Applications

The functionalization of polymeric substances is of great interest for the development of innovative materials for advanced applications. For many decades, the functionalization of chitosan has been a convenient way to improve its properties with the aim to prepare new materials with specialized characteristics. In the present article, we summarize the latest methods for the modification and derivatization of chitin and chitosan, trying to introduce specific functional groups under experimental conditions, which allow a control over the macromolecular architecture. This is motivated because an understanding of the interdependence between chemical structure and properties is an important condition for proposing innovative materials. New advances in methods and strategies of functionalization such as click chemistry approach, grafting onto copolymerization, coupling with cyclodextrins and reactions in ionic liquids are discussed.

scholarly journals Nanocrystalline Porous Thin Film VNx Hydrogen Absorbents: Method of Production, Structure and Properties

2016 ◽  
Vol 1 (1) ◽  
Author(s):  
Alexey Guglya ◽  
◽  
Alexander Kalchenko ◽  
Elena Solopikhina ◽  
Viktor Vlasov ◽  
...  
Keyword(s):  
Thin Film ◽  
Production Structure ◽  
Structure And Properties ◽  
Porous Thin Film ◽  
Method Of Production

Dissolution of natural polymers in ionic liquids: A review

e-Polymers ◽  
2012 ◽  
Vol 12 (1) ◽  
Author(s):  
Zhuojun Meng ◽  
Xuejing Zheng ◽  
Keyong Tang ◽  
Jie Liu ◽  
Shufa Qin
Keyword(s):  
Ionic Liquids ◽  
High Strength ◽  
Polymer Materials ◽  
Structure And Properties ◽  
Natural Polymer ◽  
Natural Polymers ◽  
Keratin Fibers ◽  
Strength And Stiffness ◽  
Living Organisms ◽  
Chitin And Chitosan

AbstractNatural polymers are produced by living organisms, e.g. plants, animals, microorganisms. Natural polymer materials have gained increasing attention due to their high strength and stiffness combined with carbon neutral, biocompatibility, biodegradability, renewability and sustainability. However, due to the strong interand intra-molecular hydrogen bonds, many natural polymers are extremely difficult to be dissolved in water or traditional organic solvents. The processing difficulties tremendously limit the applications of natural polymers in many fields. Recently, using ionic liquids (ILs) as novel solvents to dissolve natural polymers has attracted increasing attention. ILs has been shown to be highly effective at dissolving some natural polymers to technically useful concentrations. In this article, the structure and basic properties of ILs are introduced; the recent progress is reviewed in the dissolution of several important natural polymers using ionic liquids, including cellulose, chitin and chitosan, wool keratin fibers, silk fibroin and collagen fibers. The dissolution mechanisms of natural polymers using ILs as solvents are analyzed. The structure and properties of native and regenerated natural polymers are discussed in details.

scholarly journals Production, Structure and Properties of Coatings Based on Al2O3 Obtained by Magnetron Method

2020 ◽  
Vol 12 (1) ◽  
pp. 01022-1-01022-4
Author(s):  
D. А. Kolesnikov ◽  
◽  
I. V. Sudzhanskaya ◽  
I. Yu. Goncharov ◽  
S. V. Lytovchenko ◽  
...  
Keyword(s):  
Production Structure ◽  
Structure And Properties ◽  
Properties Of Coatings
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