Silane Coupling Agent Modifies the Mechanical Properties of a Chitosan Microfiber
Faculty of Engineering, Kyushu Institute of Technology, 1-1 Sensui-cho, Tobata-ku, Kitakyushu, Fukuoka 804-8550, Japan
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Academic Editors: Sylvain Caillol and Pietro Russo
Molecules 2020, 25(22), 5292; https://doi.org/10.3390/molecules25225292
Received: 8 October 2020
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Revised: 4 November 2020
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Accepted: 12 November 2020
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Published: 13 November 2020
(This article belongs to the Special Issue Natural Polymers and Biopolymers II)
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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Keywords:
chitosan; silane coupling agent; microfiber; crosslinking; mechanical strength
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MDPI and ACS Style
Shirosaki, Y.; Okabayashi, T.; Yasutomi, S. Silane Coupling Agent Modifies the Mechanical Properties of a Chitosan Microfiber. Molecules 2020, 25, 5292. https://doi.org/10.3390/molecules25225292
AMA Style
Shirosaki Y, Okabayashi T, Yasutomi S. Silane Coupling Agent Modifies the Mechanical Properties of a Chitosan Microfiber. Molecules. 2020; 25(22):5292. https://doi.org/10.3390/molecules25225292
Chicago/Turabian StyleShirosaki, Yuki, Toshinobu Okabayashi, and Saki Yasutomi. 2020. "Silane Coupling Agent Modifies the Mechanical Properties of a Chitosan Microfiber" Molecules 25, no. 22: 5292. https://doi.org/10.3390/molecules25225292
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