Recyclable/degradable materials via the insertion of labile/cleavable bonds using a comonomer approach

Lefay, Catherine; Guillaneuf, Yohann

doi:10.1016/j.progpolymsci.2023.101764

Cited by 20 publications

(13 citation statements)

References 482 publications

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“…To test the hypothesis mentioned above, we chose radical ring‐opening polymerization of cyclic allylic sulfides as the model polymerization because this polymerization is a typical thiyl radical chain polymerization [10] and has the potential for synthesizing macromolecules with complex main‐chain functionalities [4e,11] . Accordingly, compound 1 was synthesized as a model monomer for optimizing the reaction conditions (see Tables S1–S6 for details).…”

Section: Figurementioning

confidence: 99%

Reversible Thiyl Radical Addition−Fragmentation Chain Transfer Polymerization

Wang,

Du,

Huang

2024

Angew Chem Int Ed

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Developing reversible‐deactivation radical polymerization (RDRP) methods that could directly control the thiyl radical propagation is highly desirable yet remains challenging in modern polymer chemistry. Here, we reported the first reversible thiyl radical addition‐fragmentation chain transfer (SRAFT) polymerization strategy, which utilizes allyl sulfides as chain transfer agents for reversibly deactivating the propagating thiyl radicals, thus allowing us to directly control a challenging thiyl radical chain polymerization to afford polymers with well‐defined architectures. A linear dependence of molecular weight on conversion, high chain‐end fidelity, and efficient chain extension proved good controllability of the polymerization. In addition, density functional theory calculations provided insight into the reversible deactivation ability of allyl sulfides. The SRAFT strategy developed in this work represents a promising platform for discovering new controlled polymerizations based on thiyl radical chemistry.

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Section: Figurementioning

confidence: 99%

Reversible Thiyl Radical Addition−Fragmentation Chain Transfer Polymerization

Wang,

Du,

Huang

2024

Angew Chem Int Ed

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“…Recently, there has been a drive into developing biodegradable materials for use in biological applications. 6–11 The complete elimination of nanoparticles from the body is essential to avoid toxic accumulation of foreign materials in the body. 12 In addition, adverse events such as repeated or prolonged exposure to drug formulations could lead to antibody production, thereby causing rapid excretion of therapeutics.…”

Section: Introductionmentioning

confidence: 99%

Biodegradable mPEG-b-poly(MDO-co-vinyl esters) block copolymers as a viable nanocarrier platform with tuneable disassembly

Balaji,

Prior,

O'Reilly

et al. 2024

Polym. Chem.

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“…For example, the pyrolysis of polyolefins that consist of chemically inert carbon–carbon main chain generally requires a high temperature above 400 °C. Incorporation of cleavable moieties into the main chain of polyolefins by copolymerization with lactones, ketene acetals, and other stimuli-cleavable monomers can alleviate problems posed by the persistent C–C bond. , However, the reaction conditions need to be further optimized to coordinate the reactivity of these monomers with olefins. , It is thus necessary to develop new catalysts and strategies to achieve the upcycling of commodity plastic wastes under mild conditions to make it attractive from an economic perspective. Great advancements have been achieved in recent years for the upcycling of commodity polyolefins to produce liquid alkanes, olefins, and surfactants. − Despite the great potential of the upcycling strategy for the existing commodity polymer materials, it is still far from an ideal solution for plastic pollution.…”

Section: Introductionmentioning

confidence: 99%

Ring-Opening Polymerization of Lactones to Prepare Closed-Loop Recyclable Polyesters

Li,

Shen,

2024

Macromolecules

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The large production and indiscriminate disposal of plastics have resulted in serious resource and global environmental crises, which has raised a demand to develop a more sustainable and circular plastics economy. An ideal strategy to address the end-of-life issue of plastics is to develop nextgeneration polymers with closed-loop life cycles, which can be selectively depolymerized back to monomers at the end of their service life. Aliphatic polyesters prepared by ring-opening polymerization (ROP) of moderately strained lactones have shown great potential in closed-loop recyclable polymers. This Perspective highlights the recent achievements for closed-loop recyclable polyesters that are derived from four-, five-, six-, and seven-membered lactones by focusing on the discussion of thermodynamic and kinetic considerations, monomer design principles and polymer preparations, material properties, and chemical recyclability. Finally, the current challenges and possible directions for closed-loop recyclable polymers are also discussed.

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Recyclable/degradable materials via the insertion of labile/cleavable bonds using a comonomer approach

Cited by 20 publications

References 482 publications

Reversible Thiyl Radical Addition−Fragmentation Chain Transfer Polymerization

Reversible Thiyl Radical Addition−Fragmentation Chain Transfer Polymerization

Biodegradable mPEG-b-poly(MDO-co-vinyl esters) block copolymers as a viable nanocarrier platform with tuneable disassembly

Ring-Opening Polymerization of Lactones to Prepare Closed-Loop Recyclable Polyesters

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