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  • What is chemical Epoxidized Soybean Oil (ESBO)?
  • ESBO is made from soybean oil through the epoxidation process. Polyunsaturated vegetable oils are widely used as precursors of epoxidized oil products because they have a large number of carbon-carbon double bonds (high iodine value) that can be used for epoxidation.
  • How is epoxidized soybean oil made?
  • There are two main production methods for epoxidized soybean oil: solvent method and solvent-free method. The specific production methods include peroxyformic acid oxidation method, ion exchange resin catalysis method, aluminum sulfate catalysis method, peroxycarboxylic acid oxidation method and phase transfer catalytic oxidation method.
  • What are green non-toxic plasticizers?
  • With increasing of the degree of national environmental policy and export bans of Europe and America, more and more green non-toxic plasticizers are developed and applied in the PVC. Among them, ESO, one of green non-toxic plasticizers recognized by FDA, has received much attention during the past several decades .
  • Do explosive reagents participate in the epoxidation process of soybean oil?
  • In our previous study, the participation of explosive reagents in the epoxidation process of soybean oil was conducted in the micro-flow system. Higher oxirane value was obtained in the continuous synthesis of ESO.
  • Is epoxidized soybean oil toxic?
  • Ingestion of sufficient amounts of epoxidized soybean oil may cause gastrointestinal upset and may produce a laxative effect. Severe overexposure may cause coma or respiratory failure. Prolonged skin contact may cause mild irritation or dermatitis.
  • How are bio-based plasticizers derived from ESO developed?
  • In this study, bio-based plasticizers derived from ESO were developed in a continuous flow mode through integration of epoxidation process and ring-opening reaction ( Fig. 1 ). Various nucleophiles were used in the ring-opening reaction. Resulting polyols were reacting with acetic anhydride, yielding acetylated polyols.