The installation of selectively cleavable bonds within the backbone of linear, high-density PE (HDPE) represents a common strategy to achieve deconstructable "PE mimics" with potential routes for chemical recycling and/or environmental deconstructability. Such materials can be synthesized via post-polymerization modification of HDPE or through de novo syntheses; if designed correctly, they can display many of the key structural and performance features of conventional HDPE. Thus, such mimics could replace HDPE in applications where their additional cost of manufacturing is tolerable (e.g., electronics, coatings, or medical devices) and where triggered chemical deconstructability may be desirable.