Polypyrrole (PPy) nanoparticles were synthesized using a method adapted from Hong, et al. 201040 (link),41 (link). In brief, a stock solution of 31 kDa polyvinyl alcohol (PVA) (CAS: 9002-89-5, Sigma-Aldrich, St. Louis, MO, USA) was dissolved into deionized (DI) water at 8% by weight and filtered through a 0.45 μm filter. The PVA solution was then transferred by pipette into a glass vial and diluted with DI water to the desired molar quantity. A 0.8 M stock solution of aqueous iron (III) chloride (CAS: 7705-08-0, Sigma-Aldrich, St. Louis, MO, USA) solution was prepared, filtered, and added to the PVA solution. The solution was mixed for half an hour at 4°C allowing formation of iron-PVA complexes. Finally, pyrrole monomer (CAS: 203-714-7, Sigma-Aldrich, St. Louis, MO, USA) was added to the iron-PVA solution. The solution was stirred at 4°C for a minimum of 24 hours before further characterization. In all samples, the ratio of pyrrole monomer to iron was fixed (1:2 molar concentration) as well as iron ions to PVA polymer chains (200:1 molar concentration). The pyrrole concentration in the final solution was also varied from 4 mM to 43 mM.
Pyrrole monomer
Manufactured by Merck Group
Sourced in United States, China
Pyrrole monomer is a heterocyclic organic compound with the chemical formula C4H5N. It is a colorless liquid with a characteristic odor. Pyrrole monomers are widely used as building blocks in the synthesis of various pharmaceutical and industrial compounds.
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Lab products found in correlation
Fecl3, by Merck Group (2 mentions)
Potassium chloride (kcl), by Merck Group (2 mentions)
Polyvinylidene fluoride (pvdf), by Merck Group (2 mentions)
Milli q plus water purification system, by Merck Group (1 mentions)
Dimethyl sulfoxide (dmso), by Merck Group (1 mentions)
Fecl3 6h2o, by Sinopharm (1 mentions)
Absolute ethanol, by Sinopharm (1 mentions)
Haucl4 3h2o, by Merck Group (1 mentions)
Na2hpo4, by Merck Group (1 mentions)
Barium titanate, by Merck Group (1 mentions)
Ammonium hydroxide, by Merck Group (1 mentions)
Ferric chloride hexahydrate, by Merck Group (1 mentions)
Ammonium peroxydisulfate, by Thermo Fisher Scientific (1 mentions)
Methanol, by Thermo Fisher Scientific (1 mentions)
Isopropanol, by Thermo Fisher Scientific (1 mentions)
Silver ag nanoparticles, by Merck Group (1 mentions)
Ferric chloride fecl3, by Merck Group (1 mentions)
Nitric acid, by Loba Chemie (1 mentions)
Silver nitrate, by Merck Group (1 mentions)
N methyl 2 pyrrolidone, by Merck Group (1 mentions)
21 protocols using pyrrole monomer
1
Polypyrrole Nanoparticle Synthesis Protocol
2
Electrochemical Biosensor Fabrication
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Tin-doped indium oxide (ITO), pyrrole monomer, tetrachloroauric acid trihydrate (HAuCl4.3H2O), cysteamine (Cys), potassium ferricyanide (K3[Fe(CN)6]), potassium ferrocyanide (K4[Fe(CN)6]), bovine serum albumin (BSA), hydrochloric acid (HCl), glutaraldehyde and sodium phosphate buffer reagents were obtained from Sigma Aldrich (St. Louis, MO, USA). Milli-Q plus water purification system (Millipore, Billerica, USA) was used to obtain deionized water.
3
Paper-based Conducting Polymer Synthesis
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Pyrrole monomer and dimethyl sulfoxide (DMSO) were purchased from Sigma-Aldrich (Shanghai, China). FeCl3·6H2O and absolute ethanol were purchased from Sinopharm Chemical Reagent Co., Ltd. (Shanghai, China). PEDOT:PSS (Clevios™ PH 1000) was obtained from H. C. Stark, Inc. (Hanau, Germany). Paper, a common printing paper, was purchased from Zhanjiang Chenming Paper Co., Ltd. (Zhanjiang, China, the density and thickness of which was 70 g/m2 and 96 μm, respectively). All the materials were used without further treatment or purification.
4
Electrochemical Analysis of Gold Nanoparticles
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All solutions were prepared with ultrapure water (Elga system, R = 18.2 MΩ·cm). Pyrrole monomer (98% from Sigma-Aldrich) was purified by distillation under low pressure and kept in a refrigerator (−18 °C). The following reagents were analytical grade and used as received: Na2HPO4, KCl, HAuCl 4·3H2O (30% wt in HCl) were purchased from Sigma-Aldrich; KH2PO4, NaCl, HNO3 from Synth; L-ascorbic acid (AA) from Biotec; and KNO3 from Merck. The electrochemical measurements were conducted in IviumStat potentiostat using a pencil graphite electrode (2 mm in diameter and area of 0.47 cm2) as the working electrode, a platinum foil as the counter electrode, and Ag/AgCl/Cl− (3M) as the reference electrode.
5
Pyrrole-based Conjugation Protocol
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Pyrrole monomer, iodine, and bovine serum
albumin (BSA) lyophilized powder (05470) were purchased from Sigma-Aldrich
Co. (St. Louis, MO) and used without further purification. All aqueous
samples were prepared using ultrapure water obtained from a Millipore
system (18.2 MΩ) at a controlled temperature of 25 °C.
albumin (BSA) lyophilized powder (05470) were purchased from Sigma-Aldrich
Co. (St. Louis, MO) and used without further purification. All aqueous
samples were prepared using ultrapure water obtained from a Millipore
system (18.2 MΩ) at a controlled temperature of 25 °C.
6
Synthesis of Pyrrole-Barium Titanate Composites
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Pyrrole monomer (Sigma-Aldrich, Bestellen, Germany), distilled every time before use at 130 °C in the absence of sunlight and was kept carefully at 4 °C in dark, barium titanate (Sigma-Aldrich), hydrochloric acid (Merck A.G., Darmstadet, Germany)), ammonium hydroxide (Purity of NH3 ≥ 99.99%), ferric chloride hexahydrate (FeCl3·6H2O) Merck A.G. Double Distilled Water, Ethanol (Merck A.G.).
7
Lithium-ion Battery Electrolyte Preparation
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Lithium trifluoromethanesulfonimide
(LiTFSi, Sigma-Aldrich), propylene carbonated (Sigma Aldrich), and
DMF (Sigma-Aldrich) were all used in pristine condition. PVDF membrane
which had a thickness of 110 μm was obtained from Millipore.
Pyrrole monomer (Sigma-Aldrich) was distilled and stored −20
°C according to the description at.
(LiTFSi, Sigma-Aldrich), propylene carbonated (Sigma Aldrich), and
DMF (Sigma-Aldrich) were all used in pristine condition. PVDF membrane
which had a thickness of 110 μm was obtained from Millipore.
Pyrrole monomer (Sigma-Aldrich) was distilled and stored −20
°C according to the description at.
8
Synthesis of Conductive Polymer Composite
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TiO2 (P25, Degussa), hydrochloric acid (37%), dimethylformamide (DMF), aniline monomer (99%), ammonium peroxydisulfate (APS), isopropanol, and methanol were obtained from Fisher Scientific. Pyrrole monomer (98%) and poly(3,4-ethylenedioxythiophene)–poly(styrenesulfonate) 1.3 wt% dispersion in H2O, conductive grade were purchased from Sigma-Aldrich. All chemicals reagents were analytical pure and used without further purification.
9
Pyrrole Monomer and Silver Nanoparticle Synthesis
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Example 1
Materials
Pyrrole monomer of reagent grade having the purity of 99.9%, and silver (Ag) nanoparticles from Sigma Aldrich were used without further purification. FeCl3 of reagent grade (98%) was also obtained from Sigma Aldrich and used as received. The chemicals used for purification such as acetone, ethanol, and methanol were purchased locally.
10
Synthesis of Conducting Polypyrrole Composites
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Pyrrole monomer and sodium dodecyl sulphate (SDS) were purchased from Sigma Aldrich. Pyrrole was distilled to separate out the polymerized components and a colorless liquid obtained was stored at 0 °C for further use. Ferric chloride (FeCl3) purchased from Merck limited, Mumbai and Nitric acid purchased from Loba Chemie, Mumbai, India were used as received. All these solvents were analytical grade. Carbon cloth (thickness - 0.2 mm) was purchased from Hitsan Incorporation, Chandigarh India.
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