A mini-review on different synthesis reactions of dioctyl terephthalate (DOTP) and properties of DOTP plasticized PVC

A mini-review on different synthesis reactions of dioctyl terephthalate (DOTP) and properties of DOTP plasticized PVC

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PVC is one of the commonly preferred thermoplastics.Plasticizing additives or plasticizers are added to break interstrand-dipole interaction in PVC and soften PVC in general.Plasticizers have many applications such as electrical connectors, vinyl floorings, vinyl water stops, toys, bottle caps, and medical devices.Although a great majority of plasticizers are phthalates that harm to environment, Dioctyl terephthalate Jewelry Dish (DOTP) is known as a non-phthalate plasticizer.DOTP, one of the plasticizers preferred in the industry, is an aromatic terephthalate.

There are two main production methods of DOTP; direct esterification and transesterification.In this review, different synthesis reactions of DOTP plasticizer were summarized.Studies have generally focused on different catalysts, solvents, reactant ratios, and reaction conditions Webcams such as temperature, pressure, and reaction time in literature.Synthesizing DOTP from scrap PET products is an environmentally friendly manufacturing method.Besides, properties of DOTP plasticized PVC, mainly migration, mechanical and thermal properties, have been reviewed.

According to the results, DOTP has high compatibility with PVC, and DOTP plasticized PVC shows good migration, mechanical and thermal properties.DOTP is a promising plasticizer due to having good properties, low production cost, and low toxicity.