Need to ensure biodegradability in packaging materials

The current petrochemical-based packaging polymers (PE, PP, PS, PET, and PVC) have a useful life for a very limited period (extremely small if the lifetime of the material is considered) and are major causes of pollution [8]. Different approaches have been adopted to tackle the problem such as  

It is expected that all four approaches would be complementary, but the last one provides market opportunities for IWSPs, either from natural or petrochemical sources, which are biodegradable. 

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