ArticleACS omega2026
Achieving Highly Efficient Repeatable Hair Perming by Bunte Salt-Thiol Exchange Reaction.
Article in ACS omega, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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7 authors.
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Abstract
Conventional chemical perming typically suffers from a gradual decrease in styling efficiency due to the cumulative degradation of original disulfide bonds. To address this issue, this study proposes a novel perming technology based on the Bunte salt-thiol exchange reaction. A bifunctional Bunte salt, sodium hexamethylene-1,6-bisthiosulfate (SHB), was successfully synthesized, with its high purity and structure validated by X-ray diffraction (XRD) and Raman spectroscopy. The perming performance of this Bunte salt method was evaluated and compared against the conventional oxidative perming method on Chinese virgin hair. X-ray photoelectron spectroscopy (XPS) was utilized to calculate the relative content of disulfide bonds and to elucidate their reconstruction mechanism. Furthermore, the hair morphology, surface properties, and mechanical performance were systematically evaluated using scanning electron microscopy (SEM), transmission electron microscopy (TEM), tensile testing, and other auxiliary experiments. The results demonstrated that after six repetitive perming cycles, the SHB-permed hair maintained a high perming efficiency of 920%, whereas that of the H
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