Hybridization of graphene sheets with polyethylene terephthalate through the process of in situ polymerization aided by ultrasound

RSC Advances ◽  
2016 ◽  
Vol 6 (22) ◽  
pp. 18413-18418 ◽  
Author(s):  
Pablo González Morones ◽  
Salvador Fernández Tavizón ◽  
Ernesto Hernández Hernández ◽  
Carlos Alberto Gallardo Vega ◽  
Arxel De León Santillán

A new methodology to prepare hybrid graphene–polyethylenterephthalate nanocomposites by ultrasonication is reported.

2012 ◽  
Vol 476-478 ◽  
pp. 1446-1449 ◽  
Author(s):  
Ming Sen Zheng ◽  
Zhi Kai Wei ◽  
Quan Feng Dong

Polyaniline/Graphene composite (PANIGNS) was synthesized via in situ polymerization method. XRD and SEM results indicated that the polyaniline could uniformly adsorb on the graphene surface and prevent the agglomeration of the graphene sheets. The composite exhibits excellent electrochemical performance. A specific capacitance of 688F/g at current density of 1A/g was achieved in 1M KOH solution. The capacitance retention of 77.3% was acquired after 1000cycles at current density of 10A/g.


Polymer ◽  
2011 ◽  
Vol 52 (23) ◽  
pp. 5237-5242 ◽  
Author(s):  
Nguyen Dang Luong ◽  
Ulla Hippi ◽  
Juuso T. Korhonen ◽  
Antti J. Soininen ◽  
Janne Ruokolainen ◽  
...  

Polymers ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 113 ◽  
Author(s):  
Jialiang Zhou ◽  
Xiang Fei ◽  
Congqi Li ◽  
Senlong Yu ◽  
Zexu Hu ◽  
...  

The approach of in situ polymerization modification has proven to be an effective route for introducing functions for polyester materials. In this work, Cu2O@ZrP nanosheets with excellent dispersity and high antibacterial activity were integrated into in situ polymerized polyethylene terephthalate (PET) fibers, revealing an enhanced mechanical performance in comparison with the PET fibers fabricated directly via a traditional melt blending method. Additionally, such an in situ polymerized PET/Cu2O@ZrP fibers displayed highly enhanced mechanical properties; and great antibacterial activities against multi-types of bacterium, including S. aureus, E. coli and C. albicans. For the as-obtained two types of PET/Cu2O@ZrP fibers, we have detailed their molecular weight (detailed molecular weight) and dispersibility of nano-Cu2O@ZrP and fibers crystallinity was investigated by Gel chromatography (GPC), Scanning electron microscope (SEM), and X-ray diffractometer (XRD), respectively. The results showed that the aggregation of the nano-Cu2O@ZrP in the resultant PET matrix could be effectively prevented during its in situ polymerization process, hence we attribute its highly enhanced mechanical properties to its superior dispersion of nano-Cu2O@ZrP.


2012 ◽  
Vol 52 (9) ◽  
pp. 1888-1902 ◽  
Author(s):  
Shigeng Li ◽  
Kausick Auddy ◽  
Peter Barber ◽  
Tara J. Hansen ◽  
Jisheng Ma ◽  
...  

Molecules ◽  
2021 ◽  
Vol 26 (6) ◽  
pp. 1534
Author(s):  
Suguna Perumal ◽  
Raji Atchudan ◽  
Thomas Nesakumar Jebakumar Immanuel Edison ◽  
Jae-Jin Shim ◽  
Yong Rok Lee

Heteroatom functionalization on a graphene surface can endow the physical and structural properties of graphene. Here, a one-step in situ polymerization method was used for the noncovalent functionalization of a graphene surface with poly-N-vinyl-2-pyrrolidone (PNVP) and the exfoliation of graphite into graphene sheets. The obtained graphene/poly-N-vinyl pyrrolidone (GPNVP) composite was thoroughly characterized. The surface morphology of GPNVP was observed using field emission scanning electron microscopy and high-resolution transmission electron microscopy. Raman spectroscopy and X-ray diffraction studies were carried out to check for the exfoliation of graphite into graphene sheets. Thermogravimetric analysis was performed to calculate the amount of PNVP on the graphene surface in the GPNVP composite. The successful formation of the GPNVP composite and functionalization of the graphene surface was confirmed by various studies. The cyclic voltammetry measurement at different scan rates (5–500 mV/s) and electrochemical impedance spectroscopy study of the GPNVP composite were performed in the typical three-electrode system. The GPNVP composite has excellent rate capability with the capacitive property. This study demonstrates the one-pot preparation of exfoliation and functionalization of a graphene surface with the heterocyclic polymer PNVP; the resulting GPNVP composite will be an ideal candidate for various electrochemical applications.


2021 ◽  
Vol 166 ◽  
pp. 113495
Author(s):  
Andrey Pereira Acosta ◽  
Kelvin Techera Barbosa ◽  
Sandro Campos Amico ◽  
André Luiz Missio ◽  
Rafael de Avila Delucis ◽  
...  

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