Heteroatom-Doped Carbon Dots (CDs) as a Class of Metal-Free Photocatalysts for PET-RAFT Polymerization under Visible Light and Sunlight

被引：149
作者：
Jiang, Jingjie [1 ]
Ye, Gang [1 ,2 ]
Wang, Zhe [1 ]
Lu, Yuexiang [1 ,2 ]
Chen, Jing [1 ,2 ]
Matyjaszewski, Krzysztof [3 ]
机构：
[1] Tsinghua Univ, Collaborat Innovat Ctr Adv Nucl Energy Technol, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China
[2] Tsinghua Univ, Beijing Key Lab Radioact Waste Treatment, Beijing 100084, Peoples R China
[3] Carnegie Mellon Univ, Dept Chem, 4400 Fifth Ave, Pittsburgh, PA 15213 USA
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2018年 / 57卷 / 37期
基金：
中国国家自然科学基金; 美国国家科学基金会;
关键词：
carbon dots; photocatalysts; RAFT; RDRP; TRANSFER RADICAL POLYMERIZATION; OXYGEN TOLERANCE; CATIONIC-POLYMERIZATION; PHOTOREDOX CATALYSTS; VINYL ETHERS; CONTINUOUS-FLOW; CHARGE-TRANSFER; QUANTUM DOTS; MECHANISM; ATRP;
D O I：
10.1002/anie.201807385
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A key challenge of photoregulated living radical polymerization is developing efficient and robust photocatalysts. Now carbon dots (CDs) have been exploited for the first time as metal-free photocatalysts for visible-light-regulated reversible addition-fragmentation chain-transfer (RAFT) polymerization. Screening of diverse heteroatom-doped CDs suggested that the P- and S-doped CDs were effective photocatalysts for RAFT polymerization under mild visible light following a photoinduced electron transfer (PET) involved oxidative quenching mechanism. PET-RAFT polymerization of various monomers with temporal control, narrow dispersity (D approximate to 1.04), and chain-end fidelity was achieved. Besides, it was demonstrated that the CD-catalyzed PET-RAFT polymerization was effectively performed under natural solar irradiation.
引用
收藏
页码：12037 / 12042
页数：6
相关论文
共 75 条
[1]   Cu(0)-mediated living radical polymerization: recent highlights and applications; a perspective [J].
Anastasaki, Athina ;
Nikolaou, Vasiliki ;
Haddleton, David M. .
POLYMER CHEMISTRY, 2016, 7 (05) :1002-1026
[2]   Synthesis of Well-Defined Poly(acrylates) in Ionic Liquids via Copper(II)-Mediated Photoinduced Living Radical Polymerization [J].
Anastasaki, Athina ;
Nikolaou, Vasiliki ;
Nurumbetov, Gabit ;
Truong, Nghia P. ;
Pappas, George S. ;
Engelis, Nikolaos G. ;
Quinn, John F. ;
Whittaker, Michael R. ;
Davis, Thomas P. ;
Haddleton, David M. .
MACROMOLECULES, 2015, 48 (15) :5140-5147
[3]   Hyperbranced Polymers by Photoinduced Self-Condensing Vinyl Polymerization Using Bisbenzodioxinone [J].
Aydogan, Cansu ;
Ciftci, Mustafa ;
Kumbaraci, Volkan ;
Talinli, Naciye ;
Yagci, Yusuf .
MACROMOLECULAR CHEMISTRY AND PHYSICS, 2017, 218 (10)
[4]   Screening Supramolecular Interactions between Carbon Nanodots and Porphyrins [J].
Cadranel, Alejandro ;
Strauss, Volker ;
Margraf, Johannes T. ;
Winterfeld, Kim A. ;
Vogl, Christoph ;
Dordevic, Luka ;
Arcudi, Francesca ;
Hoelzel, Helen ;
Jux, Norbert ;
Prato, Maurizio ;
Guldi, Dirk M. .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2018, 140 (03) :904-907
[5]   Light-Controlled Radical Polymerization: Mechanisms, Methods, and Applications [J].
Chen, Mao ;
Zhong, Mingjiang ;
Johnson, Jeremiah A. .
CHEMICAL REVIEWS, 2016, 116 (17) :10167-10211
[6]   Visible-Light-Controlled Living Radical Polymerization from a Trithiocarbonate Iniferter Mediated by an Organic Photoredox Catalyst [J].
Chen, Mao ;
MacLeod, Michelle J. ;
Johnson, Jeremiah A. .
ACS MACRO LETTERS, 2015, 4 (05) :566-569
[7]   Improving photo-controlled living radical polymerization from trithiocarbonates through the use of continuous-flow techniques [J].
Chen, Mao ;
Johnson, Jeremiah A. .
CHEMICAL COMMUNICATIONS, 2015, 51 (31) :6742-6745
[8]  
Ciftci M., 2017, ANGEW CHEM, V129, P534
[9]   Living Cationic Polymerization of Vinyl Ethers through a Photoinduced Radical Oxidation/Addition/Deactivation Sequence [J].
Ciftci, Mustafa ;
Yoshikawa, Yuji ;
Yagci, Yusuf .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2017, 56 (02) :519-523
[10]   Photocatalysis in organic and polymer synthesis [J].
Corrigan, Nathaniel ;
Shanmugam, Sivaprakash ;
Xu, Jiangtao ;
Boyer, Cyrille .
CHEMICAL SOCIETY REVIEWS, 2016, 45 (22) :6165-6212
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