Work

Metathesis Cascade‐Triggered Depolymerization of Enyne Self‐Immolative Polymers**

Year: 2021

Type: article

Abstract: A novel class of enyne self-immolative polymers (SIPs) capable of metathesis cascade-triggered depolymerization is reported. Studies on model compounds established 1,6-enyne structures for efficient metathesis cascade reactions. SIPs incorporating the optimized 1,6-enyne motif were prepared via both polycondensation and iterative exponential growth approaches. These SIPs demonstrated excellent stability in strong acid, base, nucleophiles, or at elevated temperatures, and can undergo efficient and complete depolymerization once triggered by a metathesis catalyst. Further studies revealed that introducing a terminal alkene to the chain end of the enyne SIPs improved the depolymerization efficiency, and established their potential as stimuli-responsive materials.

Source: Angewandte Chemie International Edition

DOI: 10.1002/anie.202108239

Authors: Jingsong Yuan, Gavin J. Giardino, Jia Niu

Institution: Boston College

Language: English

Topic: Advanced Polymer Synthesis and Characterization

Subfield: Organic Chemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, Arnold and Mabel Beckman Foundation, National Science Foundation of Sri Lanka, Division of Chemistry

Awards: G1530451863, G233087888, CAREER: CAS: Radical Cascade-Driven Polymerization and Depolymerization, G5986892838, G6671297155