Catalytic Activity and Performance of Copper-Based Complexes Mediating Atom Transfer Radical Polymerization

2012 ◽  
Vol 52 (3-4) ◽  
pp. 276-287 ◽  
Author(s):  
Nicolay V. Tsarevsky
Nanomaterials ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 1443 ◽  
Author(s):  
Xin Li ◽  
Quan Feng ◽  
Dawei Li ◽  
Narh Christopher ◽  
Huizhen Ke ◽  
...  

The high catalytic activity of membrane-binding gold nanoparticles (AuNPs) makes its application in oxidation or reduction an attractive challenge. Herein, surface-functionalized bacterial cellulose (BC-poly(HEMA)) was successfully prepared with 2-hydroxyethyl methacrylate (HEMA) as monomers via the atom transfer radical polymerization (ATRP) method. BC-poly(HEMA) was further utilized as not only reducing agent but also carrier for uniform distribution of the AuNPs in the diameter of about 8 nm on the membrane surface during the synthesis stage. The synthesized AuNPs/BC-poly(HEMA) exhibited excellent catalytic activity and reusability for reducing 4-nitrophenol (4-NP) from NaBH4. The results proved that the catalytic performance of AuNPs/BC-poly(HEMA) was affected by the surrounding temperature and pH, and AuNPs/BC-poly(HEMA) maintained the extremely high catalytic activity of AuNPs/BC-poly(HEMA) even after 10 reuses. In addition, no 4-NP was detected in the degradation solution after being stored for 45 days. The reusable catalyst prepared by this work shows a potential industrial application prospect.


2014 ◽  
Vol 50 (66) ◽  
pp. 9266-9269 ◽  
Author(s):  
Xiangyang Du ◽  
Jinlong Pan ◽  
Mengting Chen ◽  
Lifen Zhang ◽  
Zhenping Cheng ◽  
...  

A thermo-regulated phase separable catalysis (TPSC) system for AGET ATRP based on a thermo-regulated ionic liquid was developed for the first time. The corresponding transition metal catalysts could be easily recovered and reused several times with negligible loss of catalytic activity.


2017 ◽  
Vol 38 (13) ◽  
pp. 1700040 ◽  
Author(s):  
Jordan C. Theriot ◽  
Blaine G. McCarthy ◽  
Chern-Hooi Lim ◽  
Garret M. Miyake

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