A synthetic polymer system with repeatable chemical recyclability

Author:

Zhu Jian-Bo1ORCID,Watson Eli M.1ORCID,Tang Jing1ORCID,Chen Eugene Y.-X.1ORCID

Affiliation:

1. Department of Chemistry, Colorado State University, Fort Collins, CO 80523-1872, USA.

Abstract

Recycle, recycle, recycle Some polymers, such as polyethylene terephthalate in soft drink bottles, can be depolymerized back to the starting monomers. This makes it possible to repolymerize true virgin material for repeated use. Zhu et al. developed a polymer based on a five-membered ring cyclic monomer derived from γ-butyrolactone that could be produced at ambient temperature and mild conditions (see the Perspective by Sardon and Dove). The high-molecular-weight polymer exhibited high crystallinity and thermal stability. However, at hot enough conditions, or at lower temperatures in the presence of a zinc chloride catalyst, the polymer could be returned to its starting monomers and thus recycled into new material. Science , this issue p. 398 ; see also p. 380

Funder

National Science Foundation

The W. M. Keck Foundation

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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