Synthesis and characterization of poly(pyrrole-co-2-nitrocinnamaldehyde) (PPNC), a new copolymer for solar cells applications

The use of conductive polymers as a substitute for metallic conductors and semiconductors has attracted much attention in the literature. In particular, aromatic heterocyclic polymers constitute an important class since they possess chemical and electrical stability in both the oxidized (doped) and neutral (undoped) state. A series of poly(pyrrole- co-2-nitrocinnamaldehyde) were obtained via the condensation of pyrrole and 2-nitrocinnamaldehyde in chloroform using acid exchanged montmorillonite clay called maghnite-H+ as an efficient catalyst. The conjugated copolymer was characterized using proton nuclear magnetic resonance, ultraviolet–visible spectroscopy, Fourier transform infrared spectroscopy, and scanning electron microscopy.

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Synthesis and Characterization of a Bioconjugate Based on Oleic Acid and L-Cysteine

Polymers ◽

10.3390/polym13111791 ◽

2021 ◽

Vol 13 (11) ◽

pp. 1791

Author(s):

Marco Vizcarra-Pacheco ◽

María Ley-Flores ◽

Ana Mizrahim Matrecitos-Burruel ◽

Ricardo López-Esparza ◽

Daniel Fernández-Quiroz ◽

...

Keyword(s):

Oleic Acid ◽

Materials Science ◽

Critical Micellar Concentration ◽

Synthesis And Characterization ◽

New Materials ◽

Visible Spectroscopy ◽

Amide Bonds ◽

Transmission Electron ◽

Self Assembled

One of the main challenges facing materials science today is the synthesis of new biodegradable and biocompatible materials capable of improving existing ones. This work focused on the synthesis of new biomaterials from the bioconjugation of oleic acid with L-cysteine using carbodiimide. The resulting reaction leads to amide bonds between the carboxylic acid of oleic acid and the primary amine of L-cysteine. The formation of the bioconjugate was corroborated by Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, and nuclear magnetic resonance (NMR). In these techniques, the development of new materials with marked differences with the precursors was confirmed. Furthermore, NMR has elucidated a surfactant structure, with a hydrophilic part and a hydrophobic section. Ultraviolet-visible spectroscopy (UV-Vis) was used to determine the critical micellar concentration (CMC) of the bioconjugate. Subsequently, light diffraction (DLS) was used to analyze the size of the resulting self-assembled structures. Finally, transmission electron microscopy (TEM) was obtained, where the shape and size of the self-assembled structures were appreciated.

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Synthesis and Characterization of Nano-Cellulose Immobilized Phenanthroline–Copper (I) Complex as a Recyclable and Efficient Catalyst for Preparation of Diaryl Ethers, N-aryl Amides and N-aryl Heterocycles

Polyhedron ◽

10.1016/j.poly.2021.115631 ◽

2021 ◽

pp. 115631

Author(s):

Rahman Hosseinzadeh ◽

Nora Aghili ◽

Mohammad Mavvaji

Keyword(s):

Synthesis And Characterization ◽

Efficient Catalyst ◽

Diaryl Ethers ◽

Nano Cellulose

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Synthesis and characterization of γ-Fe2O3/C nanocomposite as an efficient catalyst for the degradation of methylene blue

Desalination and Water Treatment ◽

10.1080/19443994.2015.1027955 ◽

2015 ◽

Vol 57 (20) ◽

pp. 9226-9236 ◽

Cited By ~ 7

Author(s):

Gui-Yun Mao ◽

Fan-Xing Bu ◽

Wei Wang ◽

Dong-Mei Jiang ◽

Zhen-Jie Zhao ◽

...

Keyword(s):

Methylene Blue ◽

Synthesis And Characterization ◽

Efficient Catalyst

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Synthesis and Characterization of Gold Nanoparticles Synthesized in Gel and Paper by Electrolysis

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.824.163 ◽

2019 ◽

Vol 824 ◽

pp. 163-167

Author(s):

Pema Dechen ◽

Ekasith Somsook

Keyword(s):

Electron Microscopy ◽

Scanning Electron Microscopy ◽

Gold Nanoparticles ◽

Room Temperature ◽

Synthesis And Characterization ◽

Visible Spectroscopy ◽

Gold Leaf ◽

Uv Visible ◽

Scanning Electron

In this report, synthesis and characterization of gold nanoparticles (AuNPs) from gold leaf by electrolysis in two different media (gel and paper) in presence of sodium chloride (NaCl), glucose (C6H12O6) and polyvinyl pyrrolidone (PVP) at room temperature were investigated. Graphite was used as two electrodes, NaCl was used as an electrolyte, C6H12O6 was used as reducing agent and PVP was used as stabilizer to control the aggregation of the nanoparticles. UV-Visible spectroscopy (UV-Vis) and scanning electron microscopy (SEM) were used to confirm the characteristics and morphologies of the synthesized AuNPs.

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Towards the Synthesis of Mono- and Bi-Functional Amphiphilic Oligothiophenes: Organic Materials for Opto-Electronic Applications

MRS Proceedings ◽

10.1557/proc-561-155 ◽

1999 ◽

Vol 561 ◽

Author(s):

R.C. Advincula ◽

S. Inaoka ◽

M. Park ◽

D. Phillips ◽

D.M. Shin

Keyword(s):

Physical Properties ◽

Ultrathin Films ◽

Organic Materials ◽

Photophysical Properties ◽

Electronic Devices ◽

Synthesis And Characterization ◽

Important Class ◽

Maldi Tof Ms ◽

Tof Ms

ABSTRACTIn this report, we describe our initial synthesis and characterization of mono-functional and bi-functional dibromoalkyl oligothiophenes to achieve amphiphilicity and telechelic functionality. Oligothiophenes are an important class of organic materials for opto-electronic devices and display applications. We have mono-functionalized oligothiophenes by the synthesis of a quinquethiophene bromoalkyl derivative. A bi-functional sexithiophene was derived primarily by the symmetrical coupling of terthiophene derivatives. Both were synthesized using Grignard coupling and lithiation reaction methodologies. UV-Vis, IR, NMR, MALDI-TOF-MS, and DSC confirmed the structure and physical properties of the oligomers. In addition, we have also synthesized an amphiphilic diamine derivative from the reaction of hexamethylenediamine with a bromoalkyl terthiophene derivative. Using photoluminescence, the photophysical properties of the oligomers were found to be that of typical oligothiophenes. Processing as ultrathin films for devices is currently being investigated.

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Synthesis and Characterization of Substituted μ-oxo-bis[tetra-phenylporphyrinatoiron] Compounds

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.748.183 ◽

2015 ◽

Vol 748 ◽

pp. 183-186

Author(s):

Zhi Cheng Sun ◽

Shu Ying Chen ◽

Zhi Peng Guo ◽

Mei Juan Cao ◽

Lu Hai Li

Keyword(s):

Infrared Spectra ◽

Elemental Analysis ◽

Aromatic Aldehydes ◽

Synthesis And Characterization ◽

Visible Spectroscopy ◽

Reaction Conditions ◽

One Pot ◽

Optimum Reaction ◽

Novel Method

A novel one-pot method for the synthesis of substituted μ-oxo-bis [tetraphenyl porphyrinatoiron] compounds ([TRPPFe]2O) from pyrrole and aromatic aldehydes was proposed and investigated in this paper. Four kinds of [TRPPFe]2O were designed and synthesized by one-pot reaction and characterized by elemental analysis, infrared spectra and ultraviolet-visible spectroscopy. Moreover, the [TRPPFe]2O yields of 18.7~22.4% could be obtained with this novel method under the optimum reaction conditions.

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