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Regulating the Thermodynamics and Thermal Properties of Depolymerizable Polycyclooctenes through Substituent Effects
Author(s) -
Sathe Devavrat,
Chen Hanlin,
Wang Junpeng
Publication year - 2023
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.202200304
Subject(s) - substituent , thermodynamics , thermal , chemistry , materials science , physics , organic chemistry
Chemical recycling to monomer (CRM) is a promising route for transitioning to a circular polymer economy. To develop new CRM systems with useful properties, it is important to understand the effects of monomer structure on polymerization/depolymerization behavior. In earlier work, this group demonstrated chemically recyclable polymers prepared by ring‐opening metathesis polymerization of trans ‐cyclobutane fused cyclooctenes ( t CBCO). Here, it is investigated how different substituents on cyclobutane impact the thermodynamics and thermal properties of t CBCO polymers. Introducing additional substituents to a cis ‐diester functionalized t CBCO is found to favor the conversion of polymerization; increased polymerization conversion is also observed when the cis ‐diester is isomerized into its trans counterpart. The effects of these structural features on the thermal properties are also studied. These findings can provide important insights into designing next‐generation CRM polymers.