Abstract

The perfect polymer—one that balances physical properties and environmental performance—doesn’t exist, but polybutylene adipate co -terephthalate (PBAT) comes closer than many. Producers of synthetic polymers have for decades failed to stop their products from ending up in landfills and oceans, and they are now under pressure to take responsibility. Many are redoubling efforts to boost recycling to fend off critics. Other firms are trying to tackle the waste problem by investing in biodegradable biobased plastics such as polylactic acid (PLA) and polyhydroxyalkanoate (PHA), hoping natural degradation will mitigate at least some of the waste. But both recycling and biopolymers face obstacles. Despite years of effort, the plastics recycling rate in the US, for instance, is still less than 10% . And biopolymers—often the products of fermentation—struggle to achieve the same performance and manufacturing scale of the established synthetic polymers they are meant to replace. PBAT combines some of the beneficial

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