Liquid crystalline and rheological properties of chitin whiskers with different chemical structures and chargeability.

Biomimetics Chitin / chemistry Hydrogen-Ion Concentration Liquid Crystals / chemistry Rheology Water / chemistry
Chargeability Chitin whiskers Deacetylation Liquid crystal Maleation Rheology

Journal

International journal of biological macromolecules
ISSN: 1879-0003
Titre abrégé: Int J Biol Macromol
Pays: Netherlands
ID NLM: 7909578

Informations de publication

Date de publication:
15 Aug 2020
Historique:
received: 09 03 2020
revised: 08 04 2020
accepted: 20 04 2020
pubmed: 27 4 2020
medline: 9 3 2021
entrez: 27 4 2020
Statut: ppublish

Résumé

The liquid crystalline and rheological properties of chitin whiskers (CHWs) are significant for their application in fabrication of highly ordered composite materials and optical components. The aim of this work was to elucidate the influence of chemical structure and chargeability (zeta potential, electropositivity, electronegativity or zwitterionic character) on the liquid crystalline and rheological properties of CHWs. Firstly, CHWs with different chemical structure, including positively charged whiskers (CHWs and CHWs-D/60 min) and negatively charged whiskers (mCHWs), were designed via acid hydrolysis, deacetylation, and maleation, respectively. Subsequently, the chargeability of the above whiskers was further regulated by protonation or deprotonation. The whisker aqueous suspensions with high zeta potential behaved as nematic liquid crystals or chiral nematic liquid crystals, whereas those with low zeta potential had no liquid crystal characteristics. The viscosity, G', and G" values of the CHWs and CHWs-D/60 min aqueous suspensions treated with protonation were lower than those of the corresponding whiskers treated with deprotonation. However, the mCHWs exhibited different changes in their rheological properties under protonation or deprotonation due to the electronegativity and zwitterionic characteristics. In addition, the effects of ionic strength and pH on the liquid crystalline and rheological properties of CHWs, CHWs-D/60 min, and mCHWs aqueous suspensions varied since the chemical structure and chargeability of whiskers differ.

Identifiants

DOI: 10.1016/j.ijbiomac.2020.04.158 PMID: 32335108
pubmed: 32335108
pii: S0141-8130(20)33023-3
doi: 10.1016/j.ijbiomac.2020.04.158
pii:
doi:

Substances chimiques

Water 059QF0KO0R
Chitin 1398-61-4

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

24-35

Informations de copyright

Copyright © 2020 Elsevier B.V. All rights reserved.

Auteurs

Wenjun Liu (W)

Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China.

Ken Liu (K)

Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China.

Ling Zhu (L)

Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China.

Wenyan Li (W)

Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China.

Kun Liu (K)

Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China.

Wei Wen (W)

Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China; Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, PR China.

Mingxian Liu (M)

Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China; Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, PR China.

Hong Li (H)

Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China; Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, PR China.

Changren Zhou (C)

Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China; Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, PR China.

Binghong Luo (B)

Biomaterial Research Laboratory, Department of Material Science and Engineering, College of Chemistry and Materials, Jinan University, Guangzhou 510632, PR China; Engineering Research Center of Artificial Organs and Materials, Ministry of Education, Guangzhou 510632, PR China. Electronic address: tluobh@jnu.edu.cn.

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Classifications MeSH

questionsmedicales.fr › Technologie, industrie et agriculture › Technologie › Biotechnologie › Biomimétique › Liquid crystalline and rheological properties...
questionsmedicales.fr › Glucides › Polyosides › Chitine › Liquid crystalline and rheological properties...
questionsmedicales.fr › Phénomènes chimiques › Concentration en ions d'hydrogène › Liquid crystalline and rheological properties...
questionsmedicales.fr › Technologie, industrie et agriculture › Produits manufacturés › Cristaux liquides › Liquid crystalline and rheological properties...
questionsmedicales.fr › Disciplines des sciences naturelles › Physique › Rhéologie › Liquid crystalline and rheological properties...
questionsmedicales.fr › Produits chimiques inorganiques › Composés de l'oxygène › Oxydes › Eau › Liquid crystalline and rheological properties...