Which of the following groups of polymers can be recycled? Explain your answer.A. Ziegler-Natta catalysed polymerB. Thermoplastic polymerC. Thermosetting polymerAnswer can be more than one.

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llltkl | College Teacher | (Level 3) Valedictorian

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Thermoplastics are easy to recycle since they can be melted and reshaped into other products. These types of polymers are formed by reorientation of labile bonds, e.g. a pi-bond. Ziegler-Natta catalyzed polymers are poly α-olefins. Being thermoplastic in nature these types of polymers are also easily recyclable.  Thermosetting polymers, on the other hand, undergo a chemical change when they are heated, creating a three-dimensional network and associated with the loss of a small molecule with the progress of polymerization. After they are heated and formed, these molecules cannot be re-heated and re-formed. Recycling of these polymers is nearly impossible. Hence the answer is both A and B here.