Bone and Joint Institute

Title

Triggering Depolymerization: Progress and Opportunities for Self-Immolative Polymers

Document Type

Article

Publication Date

1-1-2019

Journal

Macromolecules

URL with Digital Object Identifier

10.1021/acs.macromol.9b00965

Abstract

© 2019 American Chemical Society. Polymers that depolymerize end-to-end upon cleavage of their backbones or end-caps, often termed "self-immolative" polymers (SIPs), have garnered significant interest in recent years. They can be distinguished from other degradable and stimuli-responsive polymers by their ability to provide amplified responses to stimuli, as a single bond cleavage event is translated into the release of many small molecules through a cascade of reactions. Here, the synthesis and properties of the major classes of SIPs including poly(benzyl carbamate)s, poly(benzyl carbonate)s, poly(benzyl ether)s polyphthalaldehydes, polyglyoxylates, polyglyoxylamides, and poly(olefin sulfone)s are presented. In addition, their advantages and limitations as well as their recent applications in areas including sensors, drug delivery, micro- and nanopatterning, transient devices and composites, coatings, antibacterial, and recyclable plastics are described. Finally, the challenges associated with the development of new SIP backbones and their translation into commercial products are discussed.

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