Reversible-deactivation radical polymerization (Controlled/living radical polymerization): From discovery to materials design and applications

Progress in Polymer Science, Год журнала: 2020, Номер 111, С. 101311 - 101311

Опубликована: Окт. 14, 2020

Язык: Английский

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Emerging Trends in Polymerization-Induced Self-Assembly

ACS Macro Letters, Год журнала: 2019, Номер 8(8), С. 1029 - 1054

Опубликована: Авг. 7, 2019

In this Perspective, we summarize recent progress in polymerization-induced self-assembly (PISA) for the rational synthesis of block copolymer nanoparticles with various morphologies. Much PISA literature has been based on thermally initiated reversible addition-fragmentation chain transfer (RAFT) polymerization. Herein, pay particular attention to alternative protocols, which allow preparation improved control over morphology and functionality. For example, initiation visible light, redox chemistry, or enzymes enables incorporation sensitive monomers fragile biomolecules into nanoparticles. Furthermore, syntheses postfunctionalization resulting (e.g., cross-linking) can be conducted sequentially without intermediate purification by using external stimuli. Finally, formulations have optimized via high-throughput polymerization recently evaluated within flow reactors facile scale-up syntheses.

Язык: Английский

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Role of External Field in Polymerization: Mechanism and Kinetics

Chemical Reviews, Год журнала: 2020, Номер 120(5), С. 2950 - 3048

Опубликована: Фев. 21, 2020

The past decades have witnessed an increasing interest in developing advanced polymerization techniques subjected to external fields. Various physical modulations, such as temperature, light, electricity, magnetic field, ultrasound, and microwave irradiation, are noninvasive means, having superb but distinct abilities regulate polymerizations terms of process intensification spatial temporal controls. Gas emerging regulator plays a distinctive role controlling resembles some cases. This review provides systematic overview seven types external-field-regulated polymerizations, ranging from chain-growth step-growth polymerization. A detailed account the relevant mechanism kinetics is provided better understand each field In addition, given crucial modeling simulation mechanisms investigation, model construction typical numerical methods used this well highlights interaction between experiment toward existing systems given. At end, limitations future perspectives for critically discussed. state-of-the-art research progress not only fundamental principles underlying also stimulates new development methods.

Язык: Английский

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Designing with Light: Advanced 2D, 3D, and 4D Materials

Advanced Materials, Год журнала: 2019, Номер 32(18)

Опубликована: Дек. 1, 2019

Abstract Recent achievements and future opportunities for the design of 2D, 3D, 4D materials using photochemical reactions are summarized. Light is an attractive stimulus material due to its outstanding spatiotemporal control, ability mediate rapid polymerization under moderate reaction temperatures. These features have been significantly enhanced by major advances in light generation/manipulation with light‐emitting diodes optical fiber technologies which now allows a broad range cost‐effective fabrication protocols. This combination driving preparation sophisticated at nano‐, micro‐, macrosize scales. Looking ahead, challenges that will impact field help shape as versatile tunable tool highlighted.

Язык: Английский

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Metal‐Organic Frameworks in Polymer Science: Polymerization Catalysis, Polymerization Environment, and Hybrid Materials

Macromolecular Rapid Communications, Год журнала: 2019, Номер 41(1)

Опубликована: Авг. 30, 2019

Abstract The development of metal‐organic frameworks (MOFs) has had a significant impact on various fields chemistry and materials science. Naturally, polymer science also exploited this novel type material for purposes, which is due to the defined porosity, high surface area, catalytic activity MOFs. present review covers topics MOF/polymer research beginning with MOF‐based polymerization catalysis. Furthermore, inside MOF pores as well ligands described, have effect structures. Finally, hybrid composite are highlighted, encompassing range classes, like bulk materials, membranes, dispersed materials. In course review, applications combinations discussed (e.g., adsorption, gas separation, drug delivery, catalysis, organic electronics, stimuli‐responsive materials). past concluded an outlook toward future provided.

Язык: Английский

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Radical photoinitiation with LEDs and applications in the 3D printing of composites

Chemical Society Reviews, Год журнала: 2021, Номер 50(6), С. 3824 - 3841

Опубликована: Янв. 1, 2021

Radical initiation upon LED light irradiation is discussed herein as well its application in additive manufacturing.

Язык: Английский

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Photocontrolled RAFT polymerization: past, present, and future

Chemical Society Reviews, Год журнала: 2023, Номер 52(9), С. 3035 - 3097

Опубликована: Янв. 1, 2023

In this review, we provide a brief history, progress, and applications, discuss the remaining challenges of photocontrolled reversible addition-fragmentation chain transfer (RAFT) polymerization (i.e., photoinduced electron/energy transfer-RAFT (PET-RAFT), photoiniferter, photomediated cationic RAFT polymerization). Among these, visible-light-driven has attracted particular attention in recent years due to its benefits, including low energy consumption safe reaction procedure. Moreover, incorporation visible-light photocatalysis conferred attractive features, such as spatiotemporal control oxygen tolerance; however, clear understanding mechanism not been completely provided. We also present research efforts elucidate mechanisms with aid quantum chemical calculations combined experimental evidence. This review offers an insight into better design systems for desired applications helps realize full potential both academic- industrial-scale applications.

Язык: Английский

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Rapid High‐Resolution 3D Printing and Surface Functionalization via Type I Photoinitiated RAFT Polymerization

Angewandte Chemie International Edition, Год журнала: 2021, Номер 60(16), С. 8839 - 8850

Опубликована: Янв. 15, 2021

Abstract RAFT facilitated digital light projection 3D printing of polymeric materials provides a convenient and facile route for inducing post‐fabrication transformations via reactivation dormant chain transfer agents. In this work, we report the use Norrish type I photoinitiator in conjunction with agent to produce variety open‐air printable resins that rapidly cure under visible irradiation. The photoinitiator‐RAFT system polymerizes extremely quickly high build rates up 9.1 cm h −1 , representing 7‐fold increase compared previous mediated systems. printed containing thiocarbonylthio groups can be also produced using low concentrations divinyl comonomers initial resins, which has not been successfully achieved other photocontrolled polymerization techniques. Interestingly, inclusion agents significantly improves resolution formulations without agent, allowing fabrication intricate complex objects. Spatiotemporally controlled surface modifications objects from on material surfaces were performed one two‐pass configurations, multiple successive post‐printing same object.

Язык: Английский

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Metal-free atom transfer radical polymerization with ppm catalyst loading under sunlight

Nature Communications, Год журнала: 2021, Номер 12(1)

Опубликована: Янв. 18, 2021

Abstract Organocatalytic atom transfer radical polymerization (O-ATRP) is recently emerging as an appealing method for the synthesis of metal-free polymer materials with well-defined microstructures and architectures. However, development highly effective catalysts that can be employed at a practical low loading are still challenging task. Herein, we introduce catalyst design logic based on heteroatom-doping polycyclic arenes, which leads to discovery oxygen-doped anthanthrene (ODA) organic photoredox O-ATRP. In comparison known organocatalysts, ODAs feature strong visible-light absorption together high molar extinction coefficient (ε 455nm up 23,950 M –1 cm ), allow establishment controlled under sunlight ppm levels loading.

Язык: Английский

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Photoinduced Controlled/Living Polymerizations

Angewandte Chemie International Edition, Год журнала: 2022, Номер 61(23)

Опубликована: Фев. 7, 2022

The application of photochemistry in polymer synthesis is interest due to the unique possibilities offered compared thermochemistry, including topological and temporal control, rapid polymerization, sustainable low-energy processes, environmentally benign features leading established emerging applications adhesives, coatings, adaptive manufacturing, etc. In particular, utilization controlled/living polymerizations often offers capability for precise control over macromolecular structure chain length addition associated advantages photochemistry. Herein, latest developments photocontrolled living radical cationic their combinations syntheses are discussed. This Review summarizes highlights recent studies area photoinduced polymerizations. A discussion mechanistic details differences as well parallels between different systems polymerization methods monomer applicability.

Язык: Английский

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