Abstract

To adapt to rapid economic and technical development, multifunctional fibers are an active area of research. However, most multifunctional fiber materials exhibit low strength, stretching ability, and elastic recovery. To improve the mechanical properties of multifunctional fibers, an ionic gel fiber was synthesized in this work with high strength, and stretching ability- by random ultraviolet (UV) copolymerization between methacrylic acid and N-isopropylacrylamide in 1-ethyl-3-methylimidazolium ethyl sulfate. The copolymerized ionic gel fibers exhibit high fracture strength and high elastic recovery, they also exhibit anti-freezing capacity, high-temperature resistance, and self-healing. This UV copolymerization method can be applied to other monomers, offering a means of preparing multifunctional fibers.

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