Synthesis of PNIPAM polymer brushes on reduced graphene oxide based on click chemistry and RAFT polymerization

2011 ◽  
Vol 50 (2) ◽  
pp. 329-337 ◽  
Author(s):  
Yongfang Yang ◽  
Xiaohui Song ◽  
Liang Yuan ◽  
Mao Li ◽  
Jinchuan Liu ◽  
...  
2021 ◽  
Vol 11 (23) ◽  
pp. 11154
Author(s):  
Nikolaos Politakos ◽  
Luis Serrano Cantador ◽  
Juan Antonio Cecilia ◽  
Iranzu Barbarin ◽  
Radmila Tomovska

The monolithic materials of reduced graphene oxide (rGO) can be used successfully in CO2 adsorption. Here, the incorporation of CeO2 particles with and without polymer brushes grafted from the particles showed that the structural properties could be changed, affecting the adsorption of CO2. Polymer brushes of (1) poly(acrylic acid) (PAA), (2) poly(vinyl caprolactam) (PVCL) and (3) poly[(2-(methacryloyloxy)ethyl) trimethylammonium chloride] (PMETAC) were grafted from CeO2 via reversible addition−fragmentation chain transfer (RAFT) polymerization. The preparation of monoliths of rGO with different modified CeO2 particles led to different thermal properties (TGA), structural changes (BET isotherms) and CO2 adsorption. The responsive character of the CeO2@polymer was proven by the DLS and UV results. The responsive character of the particles incorporated into the rGO monolith affected not only the adsorption capacity but also the microstructure and values of the surface volume of the pores of the monolith. Monoliths with porosity values for better adsorption were affected by the responsive character of the polymer.


2014 ◽  
Vol 118 ◽  
pp. 184-187 ◽  
Author(s):  
Yongfang Yang ◽  
Mao Li ◽  
Yulei Xie ◽  
Xiaohui Song ◽  
Xiongwei Qu ◽  
...  

Surfaces ◽  
2019 ◽  
Vol 2 (1) ◽  
pp. 193-204 ◽  
Author(s):  
Vladyslav Mishyn ◽  
Patrik Aspermair ◽  
Yann Leroux ◽  
Henri Happy ◽  
Wolfgang Knoll ◽  
...  

The coating of electrical interfaces with reduced graphene oxide (rGO) films and their subsequent chemical modification are essential steps in the fabrication of graphene-based sensing platforms. In this work, electrophoretic deposition (EPD) of graphene oxide at 2.5 V for 300 s followed by vapor treatment were employed to coat gold electrodes uniformly with rGO. These interfaces showed excellent electron transfer characteristics for redox mediators such as ferrocene methanol and potassium ferrocyanide. Functional groups were integrated onto the Au/rGO electrodes by the electro-reduction of an aryldiazonium salt, 4-((triisopropylsilyl)ethylenyl)benzenediazonium tetrafluoroborate (TIPS-Eth-ArN) in our case. Chemical deprotection of the triisopropylsilyl function resulted in propargyl-terminated Au/rGO electrodes to which azidomethylferrocene was chemically linked using the Cu(I) catalyzed “click” chemistry.


2019 ◽  
Vol 43 (3) ◽  
pp. 1404-1414 ◽  
Author(s):  
Priyakshree Borthakur ◽  
Purna K. Boruah ◽  
Manash R. Das ◽  
Sabine Szunerits ◽  
Rabah Boukherroub

Graphene oxide sheets were functionalized by a “click” chemistry approach which was utilized for the decoration of Cu(0) nanoparticles for sensitive colorimetric detection of Cr(vi) ions.


2019 ◽  
Vol 55 (44) ◽  
pp. 6249-6252 ◽  
Author(s):  
R. V. Siva Prasanna Sanka ◽  
Balaji K. ◽  
Yves Leterrier ◽  
Shyam Pandey ◽  
Monika Srivastava ◽  
...  

N-doped reduced graphene oxide stabilized copper nanoparticles are designed as a heterogeneous catalyst for achieving Cu(i)-catalyzed [3+2] cycloaddition “click” chemistry.


2020 ◽  
Author(s):  
Christos E. Athanasiou ◽  
Mok Yun Jin ◽  
Cristina Ramirez ◽  
Nitin P. Padture ◽  
Brian W. Sheldon

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