scholarly journals In-Situ Approaches for the Preparation of Polythiophene-Derivative Cellulose Composites with High Flexibility and Conductivity

2019 ◽  
Vol 9 (16) ◽  
pp. 3371 ◽  
Author(s):  
Francisco González ◽  
Pilar Tiemblo ◽  
Mario Hoyos
Keyword(s):  
Composite Materials ◽  
In Situ Polymerization ◽  
Spray Coating ◽  
Surface Conductivity ◽  
Cellulose Composites ◽  
Cellulose Microfibers ◽  
Cellulose Membranes ◽  
High Flexibility ◽  
Polythiophene Derivative

Composite materials of conjugated polymers/cellulose were fabricated by incorporating different polythiophene-derivative polymers: Poly(3,4-ethylenedioxythiophene) (PEDOT) and an alkylated derivative of poly(3,4-propylenedioxythiophene) (PProDOT). These conjugated polythiophenes were deposited by casting or spray coating methodologies onto three different cellulose substrates: Conventional filters papers as cellulose acetate, cellulose grade 40 Whatman® and cellulose membranes prepared from cellulose microfibers. The preparation of composite materials was carried out by two methodologies: (i) by employing in-situ polymerization of 3,4-ethylenedioxithiophene (EDOT) or (ii) by depositing solutions of poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) or lab-synthetized PProDOT. Composite materials were studied in terms of electrical conductivity and surface morphology assessed by impedance spectroscopy, surface conductivity, SEM, and 3D optical profilometry. In-situ composite materials prepared by spray coating using iron trifluoromethane sulfonate as oxidizing agent can be handled and folded as the original cellulose membranes displaying a surface conductivity around 1 S∙cm−1. This versatile procedure to prepare conductive composite materials has the potential to be implemented in flexible electrodes for energy storage applications.

scholarly journals ‘In-Situ’ Preparation of Carbonaceous Conductive Composite Materials Based on PEDOT and Biowaste for Flexible Pseudocapacitor Application

2020 ◽  
Vol 4 (3) ◽  
pp. 87
Author(s):  
Francisco J. González ◽  
Andreina Montesinos ◽  
Javier Araujo-Morera ◽  
Raquel Verdejo ◽  
Mario Hoyos
Keyword(s):  
Activated Carbon ◽  
Composite Materials ◽  
In Situ Polymerization ◽  
Activated Carbons ◽  
Spray Coating ◽  
Energy Storage Density ◽  
Conductive Composite ◽  
In Situ Preparation ◽  
Spent Grain

Composite materials of poly(3,4-ethylenedioxythiophene) (PEDOT)/activated carbon (AC) were prepared by ‘in-situ’ polymerization and subsequently deposited by spray-coating onto a flexible electrolyte prepared in our laboratories. Two activated carbons were tested: a commercial activated carbon and a lab-made activated carbon from brewer’s spent grain (BSG). The porous and spongy structure of the composite increased the specific surface area, which helps to enhance the energy storage density. This procedure to develop conductive composite materials using AC prepared from biowaste has the potential to be implemented for the preparation of polymer-based conductive inks for further applications as electrodes in pseudocapacitors.

Composite materials based on graphene nanoplatelets and polypropylene derived via in situ polymerization

2013 ◽  
Vol 8 (1-2) ◽  
pp. 69-80 ◽  
Author(s):  
S. V. Pol’shchikov ◽  
P. M. Nedorezova ◽  
A. N. Klyamkina ◽  
V. G. Krashenninikov ◽  
A. M. Aladyshev ◽  
...  
Keyword(s):  
Composite Materials ◽  
In Situ Polymerization ◽  
Graphene Nanoplatelets

scholarly journals Preparation of Composite Materials Containing Polyethylene and Carbon Nanotubes by in situ Ethylene Polymerization over Titanium-Magnesium Catalyst Fixed on the Surface of Carbon Nanotubes

2020 ◽  
pp. 033-042
Author(s):  
A.A. Zdanovich ◽  
◽  
M.A. Matsko ◽  
A.V. Melezhik ◽  
A.G. Tkachev ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Composite Materials ◽  
Ethylene Polymerization ◽  
In Situ Polymerization ◽  
Organomagnesium Compound ◽  
Mwcnt Surface ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Different Molecular Weight

The data on the preparation of composite materials containing polyethylene and multi-walled carbon nanotubes (MWCNTs) of the Taunit brand are presented. To obtain these composites by in situ polymerization, a catalytic system formed by the interaction of an organomagnesium compound and TiCl4 on the surface of nanotubes was used. The catalyst fixed on the MWCNT surface has a high activity in ethylene polymerization and allows to obtain a polymer with different molecular weight. The data on the formation of a polymer on the MWCNT surface and the morphology of composites formed on various Taunit samples are presented.

Solution properties of polyaniline/carbon particle composites

2016 ◽  
Vol 36 (3) ◽  
pp. 299-307
Author(s):  
Huseyin Zengin ◽  
Erdal Bayir ◽  
Gulay Zengin
Keyword(s):  
Molecular Weight ◽  
Composite Material ◽  
Composite Materials ◽  
In Situ Polymerization ◽  
Carbon Particle ◽  
Conductive Polymer ◽  
Ionic Conductivities ◽  
Solution Properties ◽  
Different Temperatures

Abstract This study reports on the synthesis of polymer polyaniline, a conductive polymer by nature, and the preparation of polyaniline/carbon particle (PANI/CP) composites by in situ polymerization. The solution properties and conductivities in solution of synthesized PANI and PANI/CP materials were analyzed. The viscosity of PANI and PANI/CP composite materials in N-methylpyrrolidinone (NMP) solvent at different temperatures was measured to examine their behavior in solution. Initially, the viscosity-molecular weight of PANI polymer was measured and calculated to be 78,521. The viscosities of PANI and PANI/CP composite materials decreased as the temperature increased. However, the viscosities of PANI/CP composite materials increased as the percent CP content in the composites increased. The ionic conductivities and pH changes in NMP solvent, measured at different concentrations of PANI and PANI/CP composite materials, and prepared in different ratios, were measured to investigate their behavior in solution. The ionic conductivities of PANI/CP composite materials increased as the percent CP content in the composites increased. Changes in the pH of PANI/CP composite materials decreased as the percent CP content in the composites increased. The conductivity of PANI/10% CP composite material in solution was greater than that of neat PANI polymer in solution; this indicated that CPs in PANI/10% CP composite materials made important positive contributions to the conductivities.

Combining galvanic displacement and in situ polymerization in a new synthesis: micro-composite materials for Li-based batteries

2016 ◽  
Vol 4 (48) ◽  
pp. 18868-18877 ◽  
Author(s):  
P. Sánchez-Fontecoba ◽  
J. M. López del Amo ◽  
N. Fernández ◽  
S. Pérez-Villar ◽  
T. Rojo ◽  
...  
Keyword(s):  
Composite Materials ◽  
In Situ Polymerization ◽  
Galvanic Displacement ◽  
One Pot ◽  
One Pot Synthesis ◽  
New Synthesis ◽  
Displacement Reactions

A novel one-pot synthesis combines galvanic displacement reactions within situpolymerization to obtain organic–inorganic micro-composite materials.

Formation of Ziegler‐type catalytic systems on the surface of multi‐walled carbon nanotubes for the production of composite materials by in situ polymerization

2019 ◽  
Vol 136 (46) ◽  
pp. 48212
Author(s):  
Aleksandr A. Zdanovich ◽  
Nina V. Semikolenova ◽  
Vladimir L. Kuznetsov ◽  
Mikhail A. Matsko ◽  
Sergey I. Moseenkov ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Composite Materials ◽  
In Situ Polymerization ◽  
Catalytic Systems ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

scholarly journals Ultraflexible and Mechanically Strong Polymer/Polyaniline Conductive Interpenetrating Nanocomposite via In Situ Polymerization of Vinyl Monomer

Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2159
Author(s):  
Haihua Wang ◽  
Xiaojing Wu ◽  
Xuan Qin ◽  
Guiqiang Fei ◽  
Liyu Sun ◽  
...  
Keyword(s):  
Tensile Strength ◽  
In Situ Polymerization ◽  
Conductive Polymer ◽  
High Strength ◽  
Polymer Nanocomposite ◽  
Vinyl Monomer ◽  
Elongation At Break ◽  
Conductive Polyaniline ◽  
High Flexibility

Simultaneous enhancement of conductivity and mechanical properties for polyaniline/polymer nanocomposite still remains a big challenge. Here, a reverse approach via in situ polymerization (RIP) of vinyl monomers in waterborne polyaniline dispersion was raised to prepare conductive polyaniline (GPANI)/polyacrylate (PMB) interpenetrating polymer (GPANI-PMB) nanocomposite. GPANI/PMB physical blend was simultaneously prepared as reference. The conductive GPANI-PMB nanocomposite film with compact pomegranate-shape morphology is homogeneous, ultraflexible and mechanically strong. With incorporating a considerable amount of PMB into GPANI via the RIP method, only a slight decrease from 3.21 to 2.80 S/cm was detected for the conductivity of GPANI-PMB, while the tensile strength significantly increased from 25 to 43.5 MPa, and the elongation at break increased from 40% to 234%. The water absorption of GPANI-PMB3 after 72 h immersion decreased from 24.68% to 10.35% in comparison with GPANI, which is also higher than that of GPANI/PMB. The conductivity and tensile strength of GPANI-PMB were also much higher than that of GPANI/PMB (0.006 S/cm vs. 5.59 MPa). Moreover, the conductivity of GPANI-PMB remained almost invariable after folding 200 times, while that of GPANI/PMB decreased by almost half. This RIP approach should be applicable for preparing conventional conductive polymer nanocomposite with high conductivity, high strength and high flexibility.

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