Click chemistry and electro-grafting onto colloidally templated conducting polymer arrays

Polymer ◽  
2012 ◽  
Vol 53 (15) ◽  
pp. 3124-3134 ◽  
Author(s):  
Edward L. Foster ◽  
Ajaykumar Bunha ◽  
Rigoberto Advincula
Keyword(s):  
Click Chemistry ◽  
Conducting Polymer ◽  
Grafting Onto

scholarly journals Design and Synthesis of a Cyclic Double-Grafted Polymer Using Active Ester Chemistry and Click Chemistry via A “Grafting onto” Method

Polymers ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 240 ◽  
Author(s):  
Meng Liu ◽  
Lu Yin ◽  
Shuangshuang Zhang ◽  
Zhengbiao Zhang ◽  
Wei Zhang ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Click Chemistry ◽  
Narrow Molecular Weight Distribution ◽  
Grafted Polymers ◽  
Azide Group ◽  
Double Chain ◽  
Grafted Polymer ◽  
Design And Synthesis ◽  
Active Ester ◽  
Grafting Onto

Combing active ester chemistry and click chemistry, a cyclic double-grafted polymer was successfully demonstrated via a “grafting onto” method. Using active ester chemistry as post-functionalized modification approach, cyclic backbone (c-P2) was synthesized by reacting propargyl amine with cyclic precursor (poly(pentafluorophenyl 4-vinylbenzoate), c-PPF4VB6.5k). Hydroxyl-containing polymer double-chain (l-PS-PhOH) was prepared by reacting azide-functionalized polystyrene (l-PSN3) with 3,5-bis(propynyloxy)phenyl methanol, and further modified by azide group to generate azide-containing polymer double-chain (l-PS-PhN3). The cyclic backbone (c-P2) was then coupled with azide-containing polymer double-chain (l-PS-PhN3) via CuAAC reaction to construct a novel cyclic double-grafted polymer (c-P2-g-Ph-PS). This research realized diversity and complexity of side chains on cyclic-grafted polymers, and this cyclic double-grafted polymer (c-P2-g-Ph-PS) still exhibited narrow molecular weight distribution (Mw/Mn < 1.10).

Efficient synthesis of polyoxazoline-silica hybrid nanoparticles by using the “grafting-onto” approach

2016 ◽  
Vol 7 (6) ◽  
pp. 1271-1280 ◽  
Author(s):  
Golnaz Bissadi ◽  
Ralf Weberskirch
Keyword(s):  
Click Chemistry ◽  
Hybrid Nanoparticles ◽  
Efficient Synthesis ◽  
Silane Coupling ◽  
Grafting Onto ◽  
Silica Hybrid

The first preparation of silica hybrid nanoparticles by comparing the click chemistry approach with the silane coupling of α-telechelic poly(2-methyl-2-oxazoline)s is reported.

Self-plasticization of neoprene rubber via click chemistry from environmentally sustainable cardanol

2019 ◽  
Vol 52 (6) ◽  
pp. 483-494 ◽  
Author(s):  
Wenzheng Zhang ◽  
Ning Jiang ◽  
Tingting Zhang
Keyword(s):  
Thermal Stability ◽  
Click Chemistry ◽  
Room Temperature ◽  
Proton Nuclear Magnetic Resonance ◽  
Scanning Calorimetry ◽  
Good Thermal Stability ◽  
Environmentally Sustainable ◽  
Plasticization Effect ◽  
Propargyl Ether ◽  
Grafting Onto

The sustainable biomass cardanol grafting onto neoprene (CR) rubber was carried out successfully at room temperature by covalently binding to CR via click chemistry to realize the internal plasticization of CR rubber. The structure of the synthesized product was characterized by Fourier transform infrared spectroscopy and proton nuclear magnetic resonance, and differential scanning calorimetry and thermogravimetric analysis demonstrate a lowering of the glass transition temperature of the CR-propargyl ether cardanol as compared to CR. This confirms the plasticization effect of the cardanol when grafted onto CR. The cardanol as an internal plasticizer also has a good thermal stability and almost near-zero migration.

scholarly journals Well-defined polyethylene-based graft terpolymers by combining nitroxide-mediated radical polymerization, polyhomologation and azide/alkyne “click” chemistry

2016 ◽  
Vol 7 (17) ◽  
pp. 2986-2991 ◽  
Author(s):  
Nazeeha Alkayal ◽  
Hakan Durmaz ◽  
Umit Tunca ◽  
Nikos Hadjichristidis
Keyword(s):  
Click Chemistry ◽  
Radical Polymerization ◽  
Grafting Onto

Novel well-defined polyethylene-based graft terpolymers were synthesized via the “grafting onto” strategy by combining NMP, polyhomologation and CuAAC “click” chemistry.

Click Chemistry Expedited Radiosynthesis: Sulfur [18F]fluoride Exchange of Aryl Fluorosulfates

2019 ◽  
Author(s):  
Qinheng Zheng ◽  
Hongtao Xu ◽  
Hua Wang ◽  
Wen-Ge Han Du ◽  
Nan Wang ◽  
...  
Keyword(s):  
Click Chemistry ◽  
High Performance ◽  
Isotopic Exchange ◽  
Tumor Imaging ◽  
Radiochemical Yield ◽  
Exchange Method ◽  
Molar Activity ◽  
Positron Emission ◽  
Sulfur Fluoride

The lack of simple, efficient [<sup>18</sup>F]fluorination processes and new target-specific organofluorine probes remains the major challenge of fluorine-18-based positron emission tomography (PET). We report here a fast isotopic exchange method for the radiosynthesis of aryl [<sup>18</sup>F]fluorosulfate based PET agents enabled by the emerging sulfur fluoride exchange (SuFEx) click chemistry. The method has been applied to the fully-automated <sup>18</sup>F-radiolabeling of twenty-five structurally diverse aryl fluorosulfates with excellent radiochemical yield (83–100%) and high molar activity (up to 281 GBq µmol<sup>–1</sup>) at room temperature in 30 seconds. The purification of radiotracers requires no time-consuming high-performance liquid chromatography (HPLC), but rather a simple cartridge filtration. The utility of aryl [<sup>18</sup>F]fluorosulfate is demonstrated by the <i>in vivo</i> tumor imaging by targeting poly(ADP-ribose) polymerase 1 (PARP1).

Role of Polymer in Enhancement of Conductivity of Proton and Lithium Conducting Polymer Gel Electrolytes

2016 ◽  
Vol 4 (2) ◽  
pp. 1
Author(s):  
KUMAR RAJIV ◽  
SHARMA SHUCHI ◽  
DHIMAN NARESH ◽  
PATHAK DINESH ◽  
◽  
...  
Keyword(s):  
Conducting Polymer ◽  
Polymer Gel ◽  
Gel Electrolytes ◽  
Polymer Gel Electrolytes
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