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.

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.

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...

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

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.

Synthesis and characterization of a naphthalimide–dye end-labeled copolymer by reversible addition–fragmentation chain transfer (RAFT) polymerization

2011 ◽  
Vol 89 (3) ◽  
pp. 317-325 ◽  
Author(s):  
Binxin Li ◽  
Daniel Majonis ◽  
Peng Liu ◽  
Mitchell A. Winnik
Keyword(s):  
Chain Transfer ◽  
Raft Polymerization ◽  
Polymer Composition ◽  
Cooh Group ◽  
Agent Based ◽  
Molecular Weights ◽  
Reversible Addition ◽  
Raft Agent ◽  
End Use ◽  
Naphthalimide Dye

We describe the synthesis of an end-functionalized copolymer of N-(2-hydroxypropyl)methacrylamide (HPMA) and N-hydroxysuccinimide methacrylate (NMS) by reversible addition–fragmentation chain transfer (RAFT) polymerization. To control the polymer composition, the faster reacting monomer (NMS) was added slowly to the reaction mixture beginning 30 min after initating the polymerization (ca. 16% HPMA conversion). One RAFT agent, based on azocyanopentanoic acid, introduced a –COOH group to the chain at one end. Use of a different RAFT agent containing a 4-amino-1,8-naphthalimide dye introduced a UV–vis absorbing and fluorescent group at this chain end. The polymers obtained had molecular weights of 30 000 and 20 000, respectively, and contained about 30 mol% NMS active ester groups.

Living Radical Polymerization with Reversible Addition−Fragmentation Chain Transfer (RAFT Polymerization) Using Dithiocarbamates as Chain Transfer Agents

1999 ◽  
Vol 32 (21) ◽  
pp. 6977-6980 ◽  
Author(s):  
Roshan T. A. Mayadunne ◽  
Ezio Rizzardo ◽  
John Chiefari ◽  
Yen Kwong Chong ◽  
Graeme Moad ◽  
...  
Keyword(s):  
Radical Polymerization ◽  
Chain Transfer ◽  
Raft Polymerization ◽  
Living Radical Polymerization ◽  
Reversible Addition ◽  
Transfer Agents
Sign in / Sign up

Export Citation Format

Share Document