Retrofitting PMMA with a Thermal Trigger for Efficient Depolymerization DOI
Rhys W. Hughes, Tanmoy Maity,

Timothée Sergent

и другие.

Journal of the American Chemical Society, Год журнала: 2025, Номер unknown

Опубликована: Июнь 3, 2025

This work reports an efficient closed-loop bulk depolymerization method applicable to commercially available PMMA. Acid hydrolysis (<10%) and subsequent esterification with N-hydroxyphthalimide are used incorporate a thermally sensitive trigger that allows of PMMA at temperature lower than conventionally employed. We showed this strategy is model homopolymers molecular weights ranging from 28 1140 kg/mol. The same was for (∼70%) (Mn = 439 kg/mol), supporting the efficacy practical applications. Furthermore, we demonstrate can be leveraged generate depolymerizable polymer networks. approach reported here holds potential mitigate polymethacrylate waste maintain sustainable economy.

Язык: Английский

Depolymerizing off-the-shelf polymethacrylates with visible light DOI
Nicholas Ballard, Haritz Sardón

Chem, Год журнала: 2025, Номер unknown, С. 102540 - 102540

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

0
Tuning the Thermal Properties of Polymethacrylates With Bicyclobutane Monomers DOI Creative Commons
Sewon Oh, Erin E. Stache

Journal of Polymer Science, Год журнала: 2025, Номер unknown

Опубликована: Апрель 16, 2025

ABSTRACT Developing novel yet recyclable plastics is necessary as society advances and increases reliance on materials. Using new classes of monomers enables the synthesis unprecedented polymers for applications. Here, we report copolymerization with bicyclo[1.1.0]butane to make strained backbone units analyze thermal property changes based % incorporation monomers. We discover that even low (5%–20%) methyl bicyclobutane‐1‐carboxylate (MBC) poly(methyl methacrylate) (PMMA) degradation temperature while decreasing glass transition temperature. Efficient depolymerization achieved copolymers 20% or fewer MBC under photothermal conversion. Other comonomers (2‐methoxyethyl methacrylate oligo(ethylene glycol) monomethyl ethyl are also copolymerized MBC, assess in their properties, including lower critical solution temperatures (LCSTs). Our work expands understanding how monomer plays a role copolymerization, characteristics, copolymers.

Язык: Английский

Процитировано

0
Exploring novel strategies and integrated systems for photothermal catalytic hydrogen production DOI
Jingyi Su, Ning Sun,

Yinuo Zhao

и другие.

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 162794 - 162794

Опубликована: Апрель 1, 2025

Язык: Английский

Процитировано

0
Abolhasani, Anastasaki, and Chen: 2025 Winners of the ACS Sustainable Chemistry & Engineering Lectureship Award DOI
Peter Licence

ACS Sustainable Chemistry & Engineering, Год журнала: 2025, Номер unknown

Опубликована: Апрель 21, 2025

Язык: Английский

Процитировано

0
Photo-Initiated Solution Depolymerization of Poly(Methyl Methacrylate) at Room Temperature DOI
Xiao Wang, Xiangze Meng, Zhiping Xu

и другие.

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

0
In Situ Modification Assisted by HAT Chemistry for the Main Chain Initiated Depolymerization of Polymethacrylates DOI

Maxime Michelas,

Manish Kumar,

Zhisheng Lin

и другие.

ACS Macro Letters, Год журнала: 2025, Номер unknown, С. 822 - 829

Опубликована: Май 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.

Язык: Английский

Процитировано

0
Retrofitting PMMA with a Thermal Trigger for Efficient Depolymerization DOI
Rhys W. Hughes, Tanmoy Maity,

Timothée Sergent

и другие.

Journal of the American Chemical Society, Год журнала: 2025, Номер unknown

Опубликована: Июнь 3, 2025

This work reports an efficient closed-loop bulk depolymerization method applicable to commercially available PMMA. Acid hydrolysis (<10%) and subsequent esterification with N-hydroxyphthalimide are used incorporate a thermally sensitive trigger that allows of PMMA at temperature lower than conventionally employed. We showed this strategy is model homopolymers molecular weights ranging from 28 1140 kg/mol. The same was for (∼70%) (Mn = 439 kg/mol), supporting the efficacy practical applications. Furthermore, we demonstrate can be leveraged generate depolymerizable polymer networks. approach reported here holds potential mitigate polymethacrylate waste maintain sustainable economy.

Язык: Английский

Процитировано

0