In Situ Modification Assisted by HAT Chemistry for the Main Chain Initiated Depolymerization of Polymethacrylates DOI

Maxime Michelas,

Manish Kumar,

Zhisheng Lin

et al.

ACS Macro Letters, Journal Year: 2025, Volume and Issue: unknown, P. 822 - 829

Published: May 29, 2025

In this study we present a novel strategy to enhance the depolymerization of nonfunctionalized poly(methyl methacrylate) (PMMA) by enabling in situ activation polymer backbone using photoinduced Hydrogen Atom Transfer (HAT) chemistry. By screening various disulfide-based RAFT agents, identified commercially available bis(dodecylsulfanylthiocarbonyl) disulfide (DisRAFT-1) as most effective, achieving up 53% monomer recovery within 5 h at 150 °C under 405 nm light irradiation tetrachloroethane (TCE). A systematic investigation key reaction parameters, including DisRAFT-1 loading, temperature, and concentration (10-200 mM), demonstrated efficiency versatility approach. Importantly, highlight that light, elevated chlorinated solvent are all essential initiate depolymerization. Moreover, temporal control over process was achieved via ON/OFF cycles, on-demand This work offers promising route toward chemical recycling polymers leveraging mild tunable conditions.

Language: Английский

A Comprehensive Review of Sulfide Solid-State Electrolytes: Properties, Synthesis, Applications, and Challenges DOI Creative Commons

Baoyuan Man,

Yu Zeng, Qingrui Liu

et al.

Crystals, Journal Year: 2025, Volume and Issue: 15(6), P. 492 - 492

Published: May 22, 2025

Traditional lithium-ion batteries (LIBs) utilize liquid electrolytes, which pose significant safety risks. To address these concerns and enhance energy density, all-solid-state (ASSBs) have emerged as a safer more efficient alternative to conventional electrolyte-based systems. ASSBs offer notable advantages, including higher density improved safety, driving growing interest from both industry academia. A key component in battery (ASSB) development is the solid-state electrolyte (SSE), plays crucial role determining overall performance of batteries. Sulfide SSEs are characterized by distinctive attributes, notably high ionic conductivity remarkably low interfacial resistance with lithium metal anodes, renders them particularly advantageous for advancing ASSB technology. This paper systematically examines sulfide-based SSEs, particular emphasis on their underlying physicochemical properties, structural characteristics, essential functional attributes relevant applications. Additionally, we explore preparation methods sulfide analyze potential applications next-generation ASSBs. Considering current challenges (e.g., instability or air sensitivity) summarize strategies obstacles, aiming facilitate integration into future storage

Language: Английский

Citations

0

In Situ Modification Assisted by HAT Chemistry for the Main Chain Initiated Depolymerization of Polymethacrylates DOI

Maxime Michelas,

Manish Kumar,

Zhisheng Lin

et al.

ACS Macro Letters, Journal Year: 2025, Volume and Issue: unknown, P. 822 - 829

Published: May 29, 2025

In this study we present a novel strategy to enhance the depolymerization of nonfunctionalized poly(methyl methacrylate) (PMMA) by enabling in situ activation polymer backbone using photoinduced Hydrogen Atom Transfer (HAT) chemistry. By screening various disulfide-based RAFT agents, identified commercially available bis(dodecylsulfanylthiocarbonyl) disulfide (DisRAFT-1) as most effective, achieving up 53% monomer recovery within 5 h at 150 °C under 405 nm light irradiation tetrachloroethane (TCE). A systematic investigation key reaction parameters, including DisRAFT-1 loading, temperature, and concentration (10-200 mM), demonstrated efficiency versatility approach. Importantly, highlight that light, elevated chlorinated solvent are all essential initiate depolymerization. Moreover, temporal control over process was achieved via ON/OFF cycles, on-demand This work offers promising route toward chemical recycling polymers leveraging mild tunable conditions.

Language: Английский

Citations

0