Facile synthesis of poly(N-vinyl pyrrolidone) block copolymers with “more-activated” monomers by using photoinduced successive RAFT polymerization

2020 ◽  
Vol 11 (12) ◽  
pp. 2080-2088
Author(s):  
Yingjie Wang ◽  
Mengqi Wang ◽  
Liangjiu Bai ◽  
Lifen Zhang ◽  
Zhenping Cheng ◽  
...  
Keyword(s):  
Block Copolymers ◽  
Visible Light ◽  
Room Temperature ◽  
Raft Polymerization ◽  
Vinyl Pyrrolidone ◽  
Facile Synthesis ◽  
Polymerization Method

Well-defined PNVP block copolymers with more-activated monomers were synthesized by a single RAFT polymerization method under irradiation with visible light at room temperature.

Facile synthesis of well-controlled poly(glycidyl methacrylate) and its block copolymers via SARA ATRP at room temperature

2015 ◽  
Vol 6 (10) ◽  
pp. 1875-1882 ◽  
Author(s):  
Francisco Catalão ◽  
Joana R. Góis ◽  
A. S. M. Trino ◽  
Arménio C. Serra ◽  
Jorge F. J. Coelho
Keyword(s):  
Block Copolymers ◽  
Atom Transfer Radical Polymerization ◽  
Radical Polymerization ◽  
Catalytic System ◽  
Glycidyl Methacrylate ◽  
Room Temperature ◽  
Atom Transfer ◽  
Facile Synthesis

The detailed synthesis of poly(glycidyl methacrylate) (PGMA) by atom transfer radical polymerization (ATRP) using a catalytic system of Fe(0)/Cu(ii)Br2 at room temperature is reported.

Synthesis of RAFT Block Copolymers in a Multi-Stage Continuous Flow Process Inside a Tubular Reactor

2013 ◽  
Vol 66 (2) ◽  
pp. 192 ◽  
Author(s):  
Christian H. Hornung ◽  
Xuan Nguyen ◽  
Stella Kyi ◽  
John Chiefari ◽  
Simon Saubern
Keyword(s):  
Block Copolymers ◽  
Continuous Flow ◽  
Raft Polymerization ◽  
Tubular Reactor ◽  
Organic Media ◽  
Vinyl Monomers ◽  
Flow Process ◽  
Molecular Weights ◽  
Multi Stage ◽  
Polymerization Method

This work describes a multi-stage continuous flow polymerisation process for the synthesis of block copolymers using the RAFT polymerization method. The process retains all the benefits and versatility of the RAFT method and has been adapted for a series of monomer combinations, including acrylates, acrylamides, and vinyl monomers. It resulted in polymers with molecular weights between 13500 and 34100 g mol–1, and dispersities typically between 1.21 and 1.58. Different architectures were prepared (including combinations of hydrophilic and hydrophobic blocks) which are soluble in a range of different solvents including aqueous and organic media.

Facile synthesis of highly pure block copolymers by combination of RAFT polymerization, click reaction and de-grafting process

2012 ◽  
Vol 3 (7) ◽  
pp. 1803-1812 ◽  
Author(s):  
Guangdong Zhao ◽  
Peipei Zhang ◽  
Chengbo Zhang ◽  
Youliang Zhao
Keyword(s):  
Block Copolymers ◽  
Click Reaction ◽  
Raft Polymerization ◽  
Facile Synthesis ◽  
Pure Block

Facile synthesis of Z-scheme Ag2CO3/Ag/AgBr ternary heterostructured nanorods with improved photostability and photoactivity

2015 ◽  
Vol 3 (10) ◽  
pp. 5474-5481 ◽  
Author(s):  
Jingjing Li ◽  
Yunlong Xie ◽  
Yijun Zhong ◽  
Yong Hu
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Anion Exchange ◽  
Room Temperature ◽  
Chemical Compositions ◽  
Facile Synthesis ◽  
Reaction Route ◽  
One Dimensional ◽  
Enhanced Photostability

We demonstrated a facile reaction route, visible-light induced reduction followed by an anion exchange, to prepare one-dimensional (1D) Z-scheme Ag2CO3/Ag/AgBr ternary heterostructured nanorods (HNRs) with tunable chemical compositions at room temperature. The as-obtained 1D Ag2CO3/Ag/AgBr HNRs exhibit significantly enhanced photostability and photocatalytic activity.

Facile synthesis of ultra-small monodisperse ceria nanocrystals at room temperature and their catalytic activity under visible light

2010 ◽  
Vol 20 (12) ◽  
pp. 2381 ◽  
Author(s):  
Yatendra S. Chaudhary ◽  
Snigdha Panigrahi ◽  
Simantini Nayak ◽  
Biswarup Satpati ◽  
Sarama Bhattacharjee ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Visible Light ◽  
Room Temperature ◽  
Facile Synthesis

Visible and sunlight driven RAFT photopolymerization accelerated by amines: kinetics and mechanism

2016 ◽  
Vol 7 (43) ◽  
pp. 6626-6636 ◽  
Author(s):  
Michael L. Allegrezza ◽  
Zachary M. DeMartini ◽  
Alex J. Kloster ◽  
Zachary A. Digby ◽  
Dominik Konkolewicz
Keyword(s):  
Block Copolymers ◽  
Visible Light ◽  
Raft Polymerization ◽  
Kinetics And Mechanism ◽  
Tertiary Amines ◽  
Kinetics Of Polymerization ◽  
Kinetics Of

RAFT polymerization using only tertiary amines under visible light or sunlight is studied, to determine the kinetics of polymerization, and the system is applied to various monomers giving well-defined homo and block copolymers.

scholarly journals Visible light-induced PET-RAFT polymerization of methacrylates with novel organic photocatalysts

RSC Advances ◽  
2017 ◽  
Vol 7 (39) ◽  
pp. 24040-24045 ◽  
Author(s):  
Kai Tu ◽  
Tianchi Xu ◽  
Lifen Zhang ◽  
Zhenping Cheng ◽  
Xiulin Zhu
Keyword(s):  
Visible Light ◽  
Room Temperature ◽  
Raft Polymerization ◽  
Led Lights ◽  
First Time

PET-RAFT polymerization was successfully carried out under irradiation of various LED lights at room temperature by using two novel organic agents 4-methoxybenzaldehyde and 2,4,6-tri-(p-methoxyphenyl) pyrylium tetrafluoroborate for the first time.

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