Fabrication of porous chitin with continuous substructure by regeneration from gel with CaBr2·2H2O/methanol

Jun-ichi Kadokawa; Ryo Endo; Kohei Tanaka; Keisuke Ohta; Kazuya Yamamoto

doi:10.1016/j.ijbiomac.2015.04.022

Fabrication of porous chitin with continuous substructure by regeneration from gel with CaBr2·2H2O/methanol

Int J Biol Macromol. 2015:78:313-7. doi: 10.1016/j.ijbiomac.2015.04.022. Epub 2015 Apr 21.

Authors

Jun-ichi Kadokawa¹, Ryo Endo², Kohei Tanaka², Keisuke Ohta², Kazuya Yamamoto²

Affiliations

¹ Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan. Electronic address: kadokawa@eng.kagoshima-u.ac.jp.
² Graduate School of Science and Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, Japan.

PMID: 25910644
DOI: 10.1016/j.ijbiomac.2015.04.022

Abstract

In this study, we investigated the fabrication of porous chitins with continuous channel substructure by regeneration from gels with CaBr2·2H2O/methanol solution. After rapidly removing methanol from the gels, the products were immersed in methanol, followed by washing out CaBr2 with water and lyophilization to obtain regenerated chitins with inter-connected continuous pore morphology. Scanning electron microscopic results supported that the materials were consisted of continuous substructures of porous channels. The materials were further characterized by SEM-EDX and XRD measurements. The mechanical property and water absorbability were also evaluated. The plausible mechanism for the formation of the inter-connected pore morphology during the regeneration procedure was discussed.

Keywords: Chitin; Inter-connected pore; Regeneration.

MeSH terms

Bromides / chemistry*
Calcium Compounds / chemistry*
Chitin / chemistry*
Gels / chemistry*
Methanol / chemistry*
Porosity

Substances

Bromides
Calcium Compounds
Gels
Chitin
calcium bromide
Methanol