The study of rheological properties of silk fibroin in ionic liquids

Name: Tanissara Pinijmontree

Organization : Rajamangala University of Technology Lanna. Faculty of Science and Agricultural Technology

Email : arassinat@gmail.com

Name: Surassawadee Paliphot

Organization : Rajamangala University of Technology Lanna. Faculty of Science and Agricultural Technology

Name: Sathish K. Sukumaran

Organization : Yamagata University. Faculty of Engineering

Name: Sugimoto, Masataka

Organization : Yamagata University. Faculty of Engineering

Name: Adisak Takhulee

Organization : Udon Thani Rajabhat University. Faculty of Science

Name: Takahashi, Yoshiaki

Organization : Kyushu University. Institute for Materials Chemistry and Engineering

keyword: Silk fibroin

LCSH: Rheology

; Ionic liquids

LCSH: Biomedical materials -- Mechanical properties

; Protein solutions

Abstract: The Bombyx mori silk fibroin (SF) which obtained from different degumming processes was prepared and dissolved in Ionic liquids (ILs) (AmimCl, BmimCl) with 0.1-15.0 %wt at 90 ˚C for 2 hrs and 60 ˚C for 1 hr, respectively, and kept in an oven until get uniform solution. The rheological properties of this sample were measured with Rheometer. The oscillatory shear measurement was performed under a stain-control model with the frequency, ω, in a range of 0.1-100 rad/s at various temperatures. The steady shearing behavior suggested that ILs is a good solvent for SF molecules. The modulus of SF/ILs obtained from precipitation procedure shows higher modulus than both SFs obtained by conventional procedure and regenerated SF with Ajisawa’s reagent. These results corresponding to the degradation of SF from those methods. The viscosity of SF/ILs solutions were increased with concentrations increasing and showed a typical plastic flow behavior which observed by the increasing of the moduli with ω and tended to cross at high ω except at the highest temperature, which is similar to the dynamic viscoelastic behavior of the native silk spinning dope at low temperature. The existence of plateau like behavior denotes the weak network in the solution.

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Created: 2024

Modified: 2024-12-04

Issued: 2024-12-04

บทความ/Article

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BibliograpyCitation : In Kasetsart University. Faculty of Science. The Pure and Applied Chemistry International Conference 2024 (PACCON 2024) (pp.716-721). Bangkok : Kasetsart University, 2024

eng

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