Phthalates are widely used as plasticizers for polyvinyl chloride (PVC), which in turn is used to make furniture, Source: University of California Santa CruzSource: University of California Santa Cruzfood packaging and numerous other products. The industrial utility of phthalates is countered by its propensity to leach out of plastics, posing health as well as environmental risks.

An alternative plasticizer that doesn’t leach out of PVC is under development at the University of California Santa Cruz. Phthalates are typically combined with ground PVC and melted and fused together. The new nonmigratory triazole‐based phthalates are chemically bonded to the polymer chain, which prevents the chemicals from leaching out.

Several plasticizer structures were developed, one of which is promising for commercial use as few steps and chemicals are required for its synthesis, and it proved the most effective of the plasticizing routes tested.

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