Synthesis, Characterization, and Application of High-Molecular-Weight Polyethylene-like Polycarbonates: Toward Sustainable and Recyclable Fibers DOI
Mingfu Zheng, Wenjun Peng, Yao‐Yao Zhang

et al.

Macromolecules, Journal Year: 2024, Volume and Issue: 57(15), P. 7020 - 7030

Published: July 26, 2024

Polyethylene-like materials, such as polyethylene-like polycarbonates (PLPCs), have garnered widespread attention because they can compensate for the nondegradability of polyethylene while maintaining mechanical properties resembling polyethylene. Although substantial efforts been invested to develop synthetic methods PLPCs, a long-pursued goal is apply these polymers that either functionally replace or exhibit performance advantages relative incumbent polymers. Herein, we presented scalable synthesis PLPCs from long-chain α,ω-diols and diphenyl carbonate, studied relationship between structure properties, expanded their practical applications high-strength high-toughness fibers. These were prepared using equivalent biobased aliphatic diols carbonate via melt polycondensation NaOH/PPh4OPh catalysts at ppm levels, showing high molecular weight (92,000–121,000 g/mol) narrow distribution (1.69–1.80) with yield (∼99%). The influence unit density on thermodynamic morphology, was systematically studied. fibers longer-methylene-sequence (PC10, PC12, PC14) show reliable satisfactory tensile modulus stress well toughness, shorter-methylene-sequence PC6 PC8 present compromised mechanism due higher densities influencing packed crystalline structure. affordable easy-to-prepare PLPC materials also excellent chemical physical recovery capabilities, holding great potential further applications.

Language: Английский

Synthesis and Deconstruction of Polyethylene-type Materials DOI Creative Commons
Simon T. Schwab, Maximilian Baur, Taylor F. Nelson

et al.

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(5), P. 2327 - 2351

Published: Feb. 26, 2024

Polyethylene deconstruction to reusable smaller molecules is hindered by the chemical inertness of its hydrocarbon chains. Pyrolysis and related approaches commonly require high temperatures, are energy-intensive, yield mixtures multiple classes compounds. Selective cleavage reactions under mild conditions (

Language: Английский

Citations

45
Copolymerization Involving Sulfur-Containing Monomers DOI
Tian‐Jun Yue,

Wei‐Min Ren,

Xiao‐Bing Lu

et al.

Chemical Reviews, Journal Year: 2023, Volume and Issue: 123(24), P. 14038 - 14083

Published: Nov. 2, 2023

Incorporating sulfur (S) atoms into polymer main chains endows these materials with many attractive features, including a high refractive index, mechanical properties, electrochemical and adhesive ability to heavy metal ions. The copolymerization involving S-containing monomers constitutes facile method for effectively constructing polymers diverse structures, readily tunable sequences, topological structures. In this review, we describe the recent advances in synthesis of via or multicomponent polymerization techniques concerning variety monomers, such as dithiols, carbon disulfide, carbonyl sulfide, cyclic thioanhydrides, episulfides elemental (S8). Particularly, significant focus is paid precise control main-chain sequence, stereochemistry, structure achieving high-value applications.

Language: Английский

Citations

44
Lifecycle Management for Sustainable Plastics: Recent Progress from Synthesis, Processing to Upcycling DOI
Shuangqiao Yang, Yijun Li, Min Nie

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(33)

Published: June 13, 2024

Abstract Plastics, renowned for their outstanding properties and extensive applications, assume an indispensable irreplaceable role in modern society. However, the ubiquitous consumption of plastic items has led to a growing accumulation waste. Unreasonable practices production, utilization, recycling plastics have substantial energy resource depletion environmental pollution. Herein, state‐of‐the‐art advancements lifecycle management are timely reviewed. Unlike typical reviews focused on recycling, this work presents in‐depth analysis entire plastics, covering whole process from synthesis, processing, ultimate disposal. The primary emphasis lies selecting judicious strategies methodologies at each stage mitigate adverse impact waste plastics. Specifically, article delineates rationale, methods, realized various stages through both physical chemical pathways. focal point is attainment optimal rates thereby alleviating ecological burden By scrutinizing aims furnish comprehensive solutions reducing pollution fostering sustainability across all facets

Language: Английский

Citations

18
New sustainable polymers with on-demand depolymerization property DOI
Yangyang Sun, Zesheng An, Yanshan Gao

et al.

Science China Chemistry, Journal Year: 2024, Volume and Issue: 67(9), P. 2803 - 2841

Published: Aug. 12, 2024

Language: Английский

Citations

17
Sustainable high-density polyethylene via chemical recycling: From modification to polymerization methods DOI
Xiaomeng Li,

Nagarjuna A. Mahadas,

Mengxue Zhang

et al.

Polymer, Journal Year: 2024, Volume and Issue: unknown, P. 126698 - 126698

Published: Jan. 1, 2024

Language: Английский

Citations

16
Modulating Polymerization Behaviors of Ether–Ester Monomers and Physicochemical Properties of Poly(ether-alt-ester)s by Heteroatom Substitutions DOI
Mingqian Wang,

Zhiqiang Ding,

Xincui Shi

et al.

Macromolecules, Journal Year: 2024, Volume and Issue: 57(3), P. 869 - 879

Published: Jan. 24, 2024

The design of cyclic monomers is crucial for the development polymers with ideal thermal and mechanical properties by ring-opening polymerization. Herein, we provide a systematic investigation into thio-modification effects on polymerization behavior ether–ester final corresponding poly(ether-alt-ester)s. position significantly affected thermodynamics thus could regulate ceiling temperature (Tc). O-to-S substitutions in monomer′s ether/ester sites would increase α-H acidity, catalytic system strictly determined chain initiation process as well chain-end groups. Density functional theory calculations experimental studies revealed that at ester site accelerate under same conditions, thanks to high reactivity thioester group strong nucleophilicity end. resulting poly(ether-alt-ester)s exhibited crystallinity, precisely tunable physicochemical properties, recyclability, high-density polyethylene-like which exemplifies potential heteroatom modification modulating poly(ether-alt-ester)′s properties. This detailed structure–(de)polymerizability structure–property relationships will inspire future monomer toward performance.

Language: Английский

Citations

10
Ring‐Opening Terpolymerisation of Elemental Sulfur Waste with Propylene Oxide and Carbon Disulfide via Lithium Catalysis DOI Creative Commons

Cesare Gallizioli,

David Battke,

Helmut Schlaad

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(17)

Published: Feb. 29, 2024

Abstract Elemental sulfur, a waste product of the oil refinement process, represents promising raw material for synthesis degradable polymers. We show that simple lithium alkoxides facilitate polymerisation elemental sulfur S 8 with industrially relevant propylene oxide (PO) and CS 2 (a base chemical sourced from itself) to give poly(monothiocarbonate‐alt‐S x ) in which can be controlled by amount supplied sulfur. The situ generation thiolate intermediates obtained rearrangement, follows PO incorporation, allows combine epoxides into one polymer sequence would otherwise not possible. Mechanistic investigations reveal alkyl oligosulfide ring opening chain length equilibration represent better nucleophiles inserting next if compared trithiocarbonates competing addition, causes selectivity. polymers crosslinked multifunctional thiols yield reprocessable networks. Our report demonstrates how mechanistic understanding intrinsically incompatible building blocks utilisation.

Language: Английский

Citations

9
Catalytic chemical recycling and upcycling of polyolefin plastics DOI Creative Commons

Yingzi Tan,

Yidan Cheng, Jiaming Xu

et al.

Giant, Journal Year: 2024, Volume and Issue: 19, P. 100307 - 100307

Published: June 14, 2024

Polyolefins are the most produced and widely used polymeric materials. However, chemically inert nature of polyolefins has led to severe environmental pollution, posing a threat human sustenance development. Managing recycling polyolefin plastic waste is crucial for transition from linear sustainable circular economy. Catalytic chemical includes traditional techniques like pyrolysis photolysis, innovative methods that introduce cleavable bonds into chain closed-loop recycling. post-functionalization post-consumer materials another strategy tackle waste, aiming upgrade materials' utility contribute sustainability. Overall, developing catalytic deconstructing upcycling plastics essential encourage better reclamation practices reduce impact waste.

Language: Английский

Citations

9
Oxygen vacancies-promoted removal of COS via catalytic hydrolysis over CuTiO2-δ nanoflowers DOI
Xiaohai Zheng, Rui Huang, Bang Li

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 492, P. 152322 - 152322

Published: May 17, 2024

Language: Английский

Citations

5
Sulfur‐Rich Polymers Coatings DOI
Cody Marcus King‐Poole, Héloïse Thérien‐Aubin

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(44)

Published: May 20, 2024

Abstract Advancements in the synthesis of sulfur‐rich materials are driving progress across diverse fields owing to rich and tunable functionalities those materials. These typically valued for their electrochemical behaviors, high refractive indices, heavy metal affinity, ability form dynamic covalent bonding. As a result, applications span various industries including electronics, catalysis, lithium‐sulfur batteries, water reclamation, optoelectronics. Moreover, elemental sulfur, byproduct petroleum industry, is produced abundantly, necessitating exploration novel valorization routes polymers made from this feedstock. The unique combination properties also makes them an ideal platform development high‐performance functional coatings, offering durability tailored protective thus enhancing lifespan performances variety environmental conditions. presence bonds many enables creation self‐healing while sulfur itself or comonomers can contribute antimicrobial, antifouling, corrosion‐resistant properties. Furthermore, have potential be used design icephobic superhydrophobic coatings. This underscores versatility as advanced coatings with superior

Language: Английский

Citations

5