Organic Photocatalyst for ppm-Level Visible-Light-Driven Reversible Addition–Fragmentation Chain-Transfer (RAFT) Polymerization with Excellent Oxygen Tolerance

2019 ◽  
Vol 52 (15) ◽  
pp. 5538-5545 ◽  
Author(s):  
Yuna Song ◽  
Youngmu Kim ◽  
Yeonjin Noh ◽  
Varun Kumar Singh ◽  
Santosh Kumar Behera ◽  
...  
Keyword(s):  
Visible Light ◽  
Chain Transfer ◽  
Raft Polymerization ◽  
Oxygen Tolerance ◽  
Reversible Addition ◽  
Visible Light Driven ◽  
Ppm Level

Organo-photocatalysts for photoinduced electron transfer-reversible addition–fragmentation chain transfer (PET-RAFT) polymerization

2015 ◽  
Vol 6 (31) ◽  
pp. 5615-5624 ◽  
Author(s):  
Jiangtao Xu ◽  
Sivaprakash Shanmugam ◽  
Hien T. Duong ◽  
Cyrille Boyer
Keyword(s):  
Electron Transfer ◽  
Visible Light ◽  
Photoinduced Electron Transfer ◽  
Chain Transfer ◽  
Raft Polymerization ◽  
Reversible Addition ◽  
Methacrylate Monomers

In this work, we demonstrate the use of organophotoredox catalysts under visible light to perform photoinduced electron transfer-reversible addition fragmentation chain transfer (PET-RAFT) for the polymerization of methacrylate monomers.

Manganese carbonyl induced cationic reversible addition–fragmentation chain transfer (C-RAFT) polymerization under visible light

2020 ◽  
Vol 11 (15) ◽  
pp. 2724-2731 ◽  
Author(s):  
Jiajia Li ◽  
Andrew Kerr ◽  
Satu Häkkinen ◽  
Thomas Floyd ◽  
Mengmeng Zhang ◽  
...  
Keyword(s):  
Visible Light ◽  
Chain Transfer ◽  
Raft Polymerization ◽  
Vinyl Ethers ◽  
Organic Halide ◽  
Abstraction Reaction ◽  
Reversible Addition ◽  
Manganese Carbonyl

Vinyl ethers were polymerized by C-RAFT polymerization on the basis of halide abstraction reaction of manganese carbonyl and organic halide.

Effect of Nitrogen type on Carbon Dot Photocatalysts for Visible-Light-Induced Atom Transfer Radical Polymerization

2021 ◽  
Author(s):  
Qianqian Hao ◽  
Liang Qiao ◽  
Ge Shi ◽  
Yanjie He ◽  
Zhe Cui ◽  
...  
Keyword(s):  
Visible Light ◽  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Carbon Dots ◽  
Chain Transfer ◽  
Raft Polymerization ◽  
Atom Transfer ◽  
Environment Friendly ◽  
Carbon Dot ◽  
Reversible Addition

Recently, carbon dots (CDs) has been utilized as an efficient and environment friendly catalyst for photo-induced atom transfer radical polymerization (ATRP) and reversible addition–fragmentation chain-transfer (RAFT) polymerization. Here we explored...

Visible light induced aqueous RAFT polymerization using a supramolecular perylene diimide/cucurbit[7]uril complex

2019 ◽  
Vol 10 (22) ◽  
pp. 2801-2811 ◽  
Author(s):  
Yongqi Yang ◽  
Zesheng An
Keyword(s):  
Visible Light ◽  
Chain Transfer ◽  
Raft Polymerization ◽  
Green Light ◽  
Water Soluble ◽  
Perylene Diimide ◽  
Metal Free ◽  
Reversible Addition

A water-soluble perylene diimide (PDI), in the presence of triethanolamine (TEOA), is used as a metal-free photocatalyst for aqueous reversible addition–fragmentation chain transfer (RAFT) polymerization under green light.

Controlled radical polymerization of vinyl ketones using visible light

2017 ◽  
Vol 8 (21) ◽  
pp. 3351-3356 ◽  
Author(s):  
In-Hwan Lee ◽  
Emre H. Discekici ◽  
Athina Anastasaki ◽  
Javier Read de Alaniz ◽  
Craig J. Hawker
Keyword(s):  
Electron Transfer ◽  
Visible Light ◽  
Radical Polymerization ◽  
Photoinduced Electron Transfer ◽  
Chain Transfer ◽  
Raft Polymerization ◽  
Controlled Radical Polymerization ◽  
Eosin Y ◽  
Methyl Ethyl ◽  
Reversible Addition

Herein we report the photoinduced electron transfer–reversible addition–fragmentation chain transfer (PET-RAFT) polymerization of a range of vinyl ketone monomers including methyl, ethyl and phenyl derivatives, using Eosin Y as an organic photoredox catalyst and visible light.

Self-Healing Hydrophobic POSS-functionalized Fluorinated Copolymer via RAFT Polymerization and dynamic Diels-Alder Reaction

2021 ◽  
Author(s):  
Siva Ponnupandian ◽  
Prantik Mondal ◽  
Thomas Becker ◽  
Richard Hoogenboom ◽  
Andrew B Lowe ◽  
...  
Keyword(s):  
Chain Transfer ◽  
Raft Polymerization ◽  
Alder Reaction ◽  
Diels Alder ◽  
Self Healing ◽  
Diels Alder Reaction ◽  
Reversible Addition

This investigation reports the preparation of a tailor-made copolymer of furfuryl methacrylate (FMA) and trifluoroethyl methacrylate (TFEMA) via reversible addition-fragmentation chain transfer (RAFT) polymerization. The furfuryl groups of the copolymer...

scholarly journals Nano-Assemblies from Amphiphilic PnBA-b-POEGA Copolymers as Drug Nanocarriers

Polymers ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1164
Author(s):  
Angeliki Chroni ◽  
Thomas Mavromoustakos ◽  
Stergios Pispas
Keyword(s):  
Molecular Weight ◽  
Chain Transfer ◽  
Raft Polymerization ◽  
Polymeric Nanocarriers ◽  
Reversible Addition ◽  
2D Noesy ◽  
Drug Nanocarriers ◽  
Glycol Methyl Ether ◽  
Different Molecular Weight

The focus of this study is the development of highly stable losartan potassium (LSR) polymeric nanocarriers. Two novel amphiphilic poly(n-butyl acrylate)-block-poly(oligo(ethylene glycol) methyl ether acrylate) (PnBA-b-POEGA) copolymers with different molecular weight (Mw) of PnBA are synthesized via reversible addition fragmentation chain transfer (RAFT) polymerization, followed by the encapsulation of LSR into both PnBA-b-POEGA micelles. Based on dynamic light scattering (DLS), the PnBA30-b-POEGA70 and PnBA27-b-POEGA73 (where the subscripts denote wt.% composition of the components) copolymers formed micelles of 10 nm and 24 nm in water. The LSR-loaded PnBA-b-POEGA nanocarriers presented increased size and greater mass nanostructures compared to empty micelles, implying the successful loading of LSR into the inner hydrophobic domains. A thorough NMR (nuclear magnetic resonance) characterization of the LSR-loaded PnBA-b-POEGA nanocarriers was conducted. Strong intermolecular interactions between the biphenyl ring and the butyl chain of LSR with the methylene signals of PnBA were evidenced by 2D-NOESY experiments. The highest hydrophobicity of the PnBA27-b-POEGA73 micelles contributed to an efficient encapsulation of LSR into the micelles exhibiting a greater value of %EE compared to PnBA30-b-POEGA70 + 50% LSR nanocarriers. Ultrasound release profiles of LSR signified that a great amount of the encapsulated LSR is strongly attached to both PnBA30-b-POEGA70 and PnBA27-b-POEGA73 micelles.

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