Degradable π-Conjugated Polymers

doi:10.1021/jacs.4c03194

Degradable π-Conjugated Polymers

2024-04-24

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DOI：10.1021/jacs.4c03194

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The integration of next-generation electronics into society is rapidly reshaping our daily interactions and lifestyles, revolutionizing communication and engagement with the world. Future electronics promise stimuli-responsive features and enhanced biocompatibility, such as skin-like health monitors and sensors embedded in food packaging, transforming healthcare and reducing food waste. Imparting degradability may reduce the adverse environmental impact of next-generation electronics and lead to opportunities for environmental and health monitoring. While advancements have been made in producing degradable materials for encapsulants, substrates, and dielectrics, the availability of degradable conducting and semiconducting materials remains restricted. pi-Conjugated polymers are promising candidates for the development of degradable conductors or semiconductors due to the ability to tune their stimuli-responsiveness, biocompatibility, and mechanical durability. This perspective highlights three design considerations: the selection of pi-conjugated monomers, synthetic coupling strategies, and degradation of pi-conjugated polymers, for generating pi-conjugated materials for degradable electronics. We describe the current challenges with monomeric design and present options to circumvent these issues by highlighting biobased pi-conjugated compounds with known degradation pathways and stable monomers that allow for chemically recyclable polymers. Next, we present coupling strategies that are compatible for the synthesis of degradable pi-conjugated polymers, including direct arylation polymerization and enzymatic polymerization. Lastly, we discuss various modes of depolymerization and characterization techniques to enhance our comprehension of potential degradation byproducts formed during polymer cleavage. Our perspective considers these three design parameters in parallel rather than independently while having a targeted application in mind to accelerate the discovery of next-generation high-performance pi-conjugated polymers for degradable organic electronics.

Keywords:

IN-VIVO POLYMERIZATION

C-H ARYLATION

SEMICONDUCTING POLYMERS

ENZYMATIC-SYNTHESIS

EUGENOL

VANILLIN

ELECTRONICS

PRODUCTS

COPOLYMERS

CHEMISTRY

Degradable π-Conjugated Polymers

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