Silane Coupling Agent Modifies the Mechanical Properties of a Chitosan Microfiber.

Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry
Yuki ShirosakiSaki Yasutomi

Abstract

Chitosan microfibers are widely used in medical applications because they have favorable inherent properties. However, their mechanical properties require further improvement. In the present study, a trimethoxysilane aldehyde (TMSA) crosslinking agent was added to chitosan microfibers to improve their tensile strength. The chitosan microfibers were prepared using a coagulation method. The tensile strength of the chitosan microfibers was improved by crosslinking them with TMSA, even when only a small amount was used (less than 1%). TMSA did not change the orientation of the chitosan molecules. Furthermore, aldehyde derived from TMSA did not remain, and siloxane units were formed in the microfibers.

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Citations

Jan 2, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Sylvain Caillol

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Methods Mentioned

BETA
X-ray
infrared spectroscopy
acetylation

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