Pyrazino[2,3‐f][1,10]phenanthroline Derivatives for Oxygen‐Tolerant Dual Photoredox/Copper Catalyzed Atom Transfer Radical Polymerization with Ultra‐low Catalyst Dosage DOI Open Access

Wanchao Hu,

Bei Liu, Shiyi Li

et al.

Chinese Journal of Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: March 20, 2025

Comprehensive Summary Substantial progress has been made over recent years in visible light‐driven dual photoredox/copper catalyzed atom transfer radical polymerization (photo‐ATRP) through the design of photocatalysts (PCs) and optimization reaction conditions. However, it remains challenging to achieve efficient photo‐ATRP with low loadings both photocatalyst copper(II). In this study, two donor‐acceptor organic PCs based on pyrazino[2,3‐ f ][1,10]phenanthroline were successfully used Cu(II)‐mediated photo‐ATRP. These exhibit excellent light absorption capabilities thermally activated delayed fluorescence (TADF) properties. Under blue irradiation, facilitated highly oxygen‐tolerant an extremely catalyst loading (50 ppb). This system demonstrated a broad applicability various monomers, achieving successful methacrylates, acrylates, styrene. Additionally, large scale (250 mL) was achieved, resulting narrow molecular weight polymers high monomer conversions chain‐end fidelity. work provides in‐depth investigation into regulatory process photo‐ATRP, offering new insights intricate mechanism oxygen tolerance.

Language: Английский

Current status and outlook for ATRP DOI Creative Commons
Krzysztof Matyjaszewski

European Polymer Journal, Journal Year: 2024, Volume and Issue: 211, P. 113001 - 113001

Published: March 30, 2024

Atom transfer radical polymerization (ATRP) is one of the most often used controlled techniques. It employs very small amounts (ppm) Cu complexes in presence various chemical reducing agents but also external stimuli such as light, electrical current or mechanical forces. can be carried out bulk, solution, and dispersed media. ATRP has been successfully to prepare polymers with architecture well-defined topology, composition, functionality, well bioconjugates organic–inorganic hybrids. This article summarizes status an outlook for ATRP.

Language: Английский

Citations

23
Robust Miniemulsion PhotoATRP Driven by Red and Near-Infrared Light DOI Creative Commons
Xiaolei Hu, Rongguan Yin, Jaepil Jeong

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(19), P. 13417 - 13426

Published: May 1, 2024

Photoinduced polymerization techniques have gathered significant attention due to their mild conditions, spatiotemporal control, and simple setup. In addition homogeneous media, efforts been made implement photopolymerization in emulsions as a practical greener process. However, previous photoinduced reversible deactivation radical (RDRP) heterogeneous media has relied on short-wavelength lights, which limited penetration depth, resulting slow relatively poor control. this study, we demonstrate the first example of highly efficient miniemulsion ATRP open air driven by red or near-infrared (NIR) light. This was facilitated utilization water-soluble photocatalyst, methylene blue (MB+). Irradiation red/NIR light allowed for excitation MB+ subsequent photoreduction deactivator presence electron donors initiate mediate The NIR light-driven photoATRP provided successful synthesis polymers with low dispersity (1.09 ≤ Đ 1.29) quantitative conversion within an hour. study further explored impact kinetics reactors varying sizes large-scale reaction (250 mL), highlighting advantages longer-wavelength light, particularly dispersed owing its superior penetration. work opens new avenues robust emulsion techniques, offering more approach improved control efficiency.

Language: Английский

Citations

19
Tuning Surface Functions by Hydrophilic/Hydrophobic Polymer Brushes DOI
Yizhe Liu, Yubo Liu, Yang Wu

et al.

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: March 21, 2025

Polymer brushes, an optimal method for surface modification, have garnered significant interest due to their potential in wettability and functions regulation. This review summarizes the recent advancements functional polymer brush surfaces based on First, fundamental structure fabrication methods of emphasizing two primary strategies, "grafting-to" "grafting-from", were introduced, special attention was accorded subsurface-initiated atom transfer radical polymerization (SSI-ATRP) construction mechanically robust brushes. Subsequently, we delved into attributes stimuli-responsive surface, which can effectuate reversible transitions response external stimuli. Then, this also offered in-depth exploration applications brushes wettability, including lubrication, drag reduction, antifouling, antifogging, anti-icing, oil–water separation, actuation, emulsion stability. Lastly, challenges encountered practical applications, mechanical strength, biocompatibility, recyclability, preparation efficiency, addressed, achievements current research summarized insights future directions offered. intends provide researchers with a comprehensive understanding regulation, development technology, it will be anticipated that they assume increasingly pivotal roles various fields.

Language: Английский

Citations

7
Atom transfer radical polymerization DOI
Simon Harrisson, Richard Whitfield, Athina Anastasaki

et al.

Nature Reviews Methods Primers, Journal Year: 2025, Volume and Issue: 5(1)

Published: Jan. 9, 2025

Language: Английский

Citations

5
Oxygen, Light, and Mechanical Force Mediated Radical Polymerization Toward Precision Polymer Synthesis DOI
Zhujun Huang, Jin Dong, Kaiwen Liu

et al.

Chemical Communications, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

This article highlights the advancements in controlled radical polymerization facilitated by three external regulations of oxygen, light, and mechanical force, outlines future directions polymerization.

Language: Английский

Citations

3
Low-energy photoredox catalysis DOI
David C. Cabanero, Tomislav Rovis

Nature Reviews Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 11, 2024

Language: Английский

Citations

18
Highly efficient dual photoredox/copper catalyzed atom transfer radical polymerization achieved through mechanism-driven photocatalyst design DOI Creative Commons
Woojin Jeon, Yonghwan Kwon, Min Sang Kwon

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: June 17, 2024

Abstract Atom transfer radical polymerization (ATRP) with dual photoredox/copper catalysis combines the advantages of photo-ATRP and photoredox-mediated ATRP, utilizing visible light ensuring broad monomer scope solvent compatibility while minimizing side reactions. Despite its popularity, challenges include high photocatalyst (PC) loadings (10 to 1000 ppm), requiring additional purification increasing costs. In this study, we discover a PC that functions at sub-ppm level for ATRP through mechanism-driven design. Through studying mechanisms, find efficient polymerizations are driven by PCs whose ground state oxidation potential—responsible regeneration—play more important role than their excited reducing power, responsible initiation. This is verified screening varying redox potentials triplet generation capabilities. Based on these findings, identify highly PC, 4DCDP-IPN, featuring moderate power maximized potential. Employing 50 ppb, synthesize poly(methyl methacrylate) conversion, narrow molecular weight distribution, chain-end fidelity. system exhibits oxygen tolerance supports large-scale reactions under ambient conditions. Our systematic design, offer meaningful insights controlled metallaphotoredox-mediated syntheses beyond ATRP.

Language: Английский

Citations

13
Photocontrolled radical polymerization for the synthesis of ultrahigh-molecular-weight polymers DOI
Shilong Zhu, Weina Kong,

Shuangqi Lian

et al.

Nature Synthesis, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 10, 2025

Language: Английский

Citations

2
Molecular Photothermal Conversion Catalyst Promotes Photocontrolled Atom Transfer Radical Polymerization DOI
Cristina Preston‐Herrera, Sajjad Dadashi‐Silab, Daniel G. Oblinsky

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(13), P. 8852 - 8857

Published: March 20, 2024

Photothermal conversion is a growing research area that promotes thermal transformations with visible light irradiation. However, few examples of dual photothermal and catalysis limit the power this phenomenon. Here, we take inspiration from nature's ability to use porphyrinic compounds for nonradiative relaxation convert into heat facilitate polymerization catalysis. We identify catalytic activity vitamin B

Language: Английский

Citations

8
Nucleic Acid-Binding Dyes as Versatile Photocatalysts for Atom-Transfer Radical Polymerization DOI Creative Commons
Jaepil Jeong, Xiaolei Hu, Rongguan Yin

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(19), P. 13598 - 13606

Published: May 1, 2024

Nucleic acid-binding dyes (NuABDs) are fluorogenic probes that light up after binding to nucleic acids. Taking advantage of their fluorogenicity, NuABDs have been widely utilized in the fields nanotechnology and biotechnology for diagnostic analytical applications. We demonstrate potential together with an appropriate acid scaffold as intriguing photocatalyst precisely controlled atom-transfer radical polymerization (ATRP). Additionally, we systematically investigated thermodynamic electrochemical properties dyes, providing insights into mechanism drives photopolymerization. The versatility NuABD-based platform was also demonstrated through successful polymerizations using several conjunction diverse scaffolds, such G-quadruplex DNA or nanoflowers. This study not only extends horizons photopolymerization but broadens opportunities acid-based materials technologies, including acid–polymer biohybrids stimuli-responsive ATRP platforms.

Language: Английский

Citations

8