scholarly journals Studies on Dyeing Performance of Novel Acid Azo Dyes and Mordent Acid Azo Dyes Based on 2,4-Dihydroxybenzophenone

2009 ◽  
Vol 6 (2) ◽  
pp. 315-322 ◽  
Author(s):  
Bharat C. Dixit ◽  
Hitendra M. Patel ◽  
Dhirubhai J. Desai ◽  
Ritu B. Dixit
Keyword(s):  
Azo Dyes ◽  
Aromatic Amino Acids ◽  
Spectral Studies ◽  
Structure Property ◽  
Light Fastness ◽  
Silk Fibers ◽  
H Nmr ◽  
Dyeing Performance ◽  
Structure Property Relationship ◽  
Uv Visible

Novel acid azo and mordent acid azo dyes have been prepared by the coupling of diazo solution of different aminonaphthol sulphonic acids and aromatic amino acids with 2,4-dihydroxybenzophenone. The resultant dyes were characterized by elemental analysis as well as IR and1H NMR spectral studies. The UV-visible spectral data have also been discussed in terms of structure property relationship. The dyeing assessments of all the dyes were evaluated on wool and silk textile fibers. The dyeing of chrome pretreated wool and silk have also been monitored. The result shows that better hue was obtained on mordented fiber. Results of bactericidal studies of chrome pretreated fibers revealed that the toxicity of mordented dyes against bacteria is fairly good. Dyeing on wool and silk fibers resulted in yellowish pink to reddish brown colourations having excellent light fastness and washing fastness.

scholarly journals Synthesis, Characterization and Printing Application of Solvent Dyes Based on 2-Hydroxy-4-n-octyloxybenzophenone

2011 ◽  
Vol 8 (2) ◽  
pp. 615-620 ◽  
Author(s):  
Bharat C. Dixit ◽  
Hitendra M. Patel
Keyword(s):  
Spectral Data ◽  
Elemental Analysis ◽  
Cotton Fiber ◽  
Aromatic Amines ◽  
Spectral Studies ◽  
Structure Property ◽  
H Nmr ◽  
Property Relationship ◽  
Structure Property Relationship ◽  
Uv Visible

Solvent dyes have been prepared by the coupling of diazo solution of different aromatic amines with 2-hydroxy-4-n-octyloxybenzophenone. The resultant dyes were characterized by elemental analysis as well as IR and1H NMR spectral studies. The UV-Visible spectral data have also been discussed in terms of structure property relationship. The printing of all the dyes on cotton fiber was monitored. The result shows that better hue was obtained on printing on cotton fiber and it is resulted in yellow to reddish brown colorations which showed a good fastness to light, with poor to good fastness to washing, perspiration and sublimation, however it shows poor rubbing fastness.

scholarly journals Assessment of Dyeing Properties of Novel Bisazo-Bisazomethine Disperse Dyes on Polyester Fabric

2011 ◽  
Vol 8 (3) ◽  
pp. 1218-1225 ◽  
Author(s):  
B. C. Dixit ◽  
D. M. Patel
Keyword(s):  
Aromatic Amines ◽  
Polyester Fabric ◽  
Spectral Studies ◽  
Disperse Dyes ◽  
Fastness Properties ◽  
Visible Absorption ◽  
Polyester Fabrics ◽  
H Nmr ◽  
Dyeing Performance ◽  
Uv Visible

Novel bisazo-bisazomethine disperse dyes were prepared by the coupling of diazotized solutions of various aromatic amines with 2,2'-{sulfonylbis [4,1-phenylene nitrilomethylylidene]} diphenol (SB). Above Schiff base was prepared by the condensation of 2-hydroxybenzaldehyde with 4,4’-sulphonyl- dianiline (Dapson). The resultant dyes were characterized by elemental analysis, IR and1H NMR spectral studies. The UV Visible absorption spectral data were investigated in dimethylformamide (DMF) and are discussed in terms of structural property relationship. Their dyeing performance as disperse dyes has been assessed on polyester fabrics. The results show that a better hue was obtained on polyester fabrics and have mild to moderate fastness properties.

scholarly journals Preparation, Characterization, and Thermal Degradation Studies ofp-Nitrophenol-Based Copolymer

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Pawan P. Kalbende ◽  
Mangesh V. Tarase ◽  
Anil B. Zade
Keyword(s):  
Thermal Degradation ◽  
Thermal Activation ◽  
Frequency Factor ◽  
Spectral Studies ◽  
H Nmr ◽  
Degradation Pattern ◽  
Degradation Step ◽  
Ft Ir ◽  
Uv Visible ◽  
Most Probable Structure

Polycondensation reaction was employed to synthesize a new copolymer resin (p-NP-4,4′-MDA-F) from p-nitrophenol (p-NP) and 4,4′-methylene dianiline (4,4′-MDA) with formaldehyde (F) in presence of 2 M hydrochloric acid as a catalyst at130±1°C. The resin was characterized by elemental analysis and spectral studies such as UV-visible, FT-IR, and1H-NMR spectra which were used to confine the most probable structure of synthesized copolymer. Thermal degradation pattern and kinetics have been investigated by thermogravimetric analysis. Thermal degradation curve have been studied with minute detail for each degradation step. Friedman, Chang, Sharp-Wentworth, Freeman-Carroll, and Coat-Redfern methods have been implemented in order to compute the kinetic parameters, that is, thermal activation energy (Ea), order of reaction (n), and frequency factor (z).

scholarly journals Antimicrobial Applications of Transition Metal Complexes of Benzothiazole Based Terpolymer: Synthesis, Characterization, and Effect on Bacterial and Fungal Strains

2014 ◽  
Vol 2014 ◽  
pp. 1-16 ◽  
Author(s):  
Mohamed A. Riswan Ahamed ◽  
Raja S. Azarudeen ◽  
N. Mujafar Kani
Keyword(s):  
Metal Complexes ◽  
Elemental Analysis ◽  
Biological Activities ◽  
Gel Permeation Chromatography ◽  
Spectral Studies ◽  
X Ray Diffraction ◽  
Spectral Techniques ◽  
H Nmr ◽  
Uv Visible ◽  
C Nmr

Terpolymer of 2-amino-6-nitro-benzothiazole-ethylenediamine-formaldehyde (BEF) has been synthesized and characterized by elemental analysis and various spectral techniques like FTIR, UV-Visible, and1H and13C-NMR. The terpolymer metal complexes were prepared with Cu2+, Ni2+, and Zn2+metal ions using BEF terpolymer as a ligand. The complexes have been characterized by elemental analysis and IR, UV-Visible, ESR,1H-NMR, and13C-NMR spectral studies. Gel permeation chromatography was used to determine the molecular weight of the ligand. The surface features and crystalline behavior of the ligand and its complexes were analyzed by scanning electron microscope and X-ray diffraction methods. Thermogravimetric analysis was used to analyze the thermal stability of the ligand and its metal complexes. Kinetic parameters such as activation energy(Ea)and order of reaction (n) and thermodynamic parameters, namely,ΔS,ΔF,S*, andZ, were calculated using Freeman-Carroll (FC), Sharp-Wentworth (SW), and Phadnis-Deshpande (PD) methods. Thermal degradation model of the terpolymer and its metal complexes was also proposed using PD method. Biological activities of the ligand and its complexes were tested againstShigella sonnei,Escherichia coli,Klebsiellaspecies,Staphylococcus aureus,Bacillus subtilis, andSalmonella typhimuriumbacteria andAspergillus flavus,Aspergillus niger,Penicilliumspecies,Candida albicans,Cryptococcus neoformans,Mucor speciesfungi.

scholarly journals Synthesis and Antimicrobial Activity of Pyrimidine Salts with Chloranilic and Picric Acids

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
C. Mallikarjunaswamy ◽  
D. G. Bhadregowda ◽  
L. Mallesha
Keyword(s):  
Antimicrobial Activity ◽  
The Other ◽  
Spectral Studies ◽  
H Nmr ◽  
Antibacterial And Antifungal Activities ◽  
Elemental Analyses ◽  
Ft Ir ◽  
Uv Visible ◽  
Antibacterial And Antifungal

Pyrimidine salts such as 2-methyl-5-nitro-phenyl-(4-pyridin-3-yl-pyrimidin-2-yl)-amine (1) and 4-methyl-3-(4-pyridin-3-yl-pyrimidin-2-yl-amino)-phenyl-amine (2) with chloranilic and picric acids were synthesized, and theirin vitroantibacterial and antifungal activities were evaluated. The synthesized compounds were characterized by elemental analyses, UV-visible, FT-IR, and1H NMR spectral studies. Compound2aexhibited good inhibition towards antimicrobial activity compared to the other compounds.

Effect of macro and molecular initiators on the structure-property relationship of poly(ε-caprolactone)

2021 ◽  
pp. 089270572110271
Author(s):  
A Thamizhlarasan ◽  
B Meenarathi ◽  
R Anbarasan
Keyword(s):  
Analytical Techniques ◽  
Aromatic Proton ◽  
Bulk Polymerization ◽  
Inert Atmosphere ◽  
Structure Property ◽  
Nmr Spectrum ◽  
H Nmr ◽  
Structure Property Relationship ◽  
Ft Ir ◽  
Relationship Of

Ring opening polymerization (ROP) of ε-caprolactone (CL) was carried out by bulk polymerization technique using stannous octoate (SO) as a catalyst and in the presence of macro or molecular initiator for 5 h under inert atmosphere with mild stirring. The % yield of poly(ε-caprolactone) (PCL) obtained was calculated and compared based on the chemical structure of macro and molecular initiators. Various analytical techniques such as FT-IR, 1H-NMR, XPS, GPC, DSC, TGA, SEM and WCA were used to characterize the PCL. The FT-IR spectrum showed the C=O stretching around ∼1725 cm−1. The aromatic proton signal of isoeugenol (IE) initiator appeared at 7–8 ppm in the proton NMR spectrum. The experimental results obtained were compared with the literature values.

SYNTHESIS, CHARACTERIZATION AND DYEING PERFORMANCE OF MONO AZO DISPERSE DYES BASED ON 2-AMINO 5-(4'-NITRO PHENYL) 1,3,4-THIADIAZOLE MOIETY

2021 ◽  
pp. 54-57
Author(s):  
Navinkumar A. Kucha ◽  
Manishkumar J. Tank ◽  
G. M. Malik
Keyword(s):  
High Pressure ◽  
Polyester Fabric ◽  
Disperse Dyes ◽  
Fastness Properties ◽  
H Nmr ◽  
Pressure Method ◽  
Dyeing Performance ◽  
Uv Visible ◽  
Azo Disperse Dyes ◽  
High Temperature High Pressure

In this paper synthesis of some new mono azo disperse dyes based on 2-amino 5-(4'-nitro phenyl) 1,3,4-thiadiazole moiety has been reported. Preparation of mono azo disperse dyes via condensation and nally diazotization of substituted primary amine and condensed with N-(4-(4'-chlorophenyl)thiazol-2-yl)-2-((5-(4'-nitrophenyl)-1,3,4-thiadiazol-2-yl)amino)acetamide (RR) to 1 give a series of mono azo dyes (RR -RR ). All the dyes were characterized by IR, H NMR, UV-Visible and elemental analysis and their dyeing 1 15 performance evaluated using High Temperature High Pressure method (HTHP) at 130°C on polyester fabric. All dyes gave good to excellent fastness properties.

scholarly journals Synthesis, Characterization and Antimicrobial Activity of Methylquinolino[3,2-b][1,5]benzodiazepine and Methylquinolino[3,2-b][1,5]benzoxazepine and its Various Metal Complexes

2007 ◽  
Vol 4 (1) ◽  
pp. 32-38 ◽  
Author(s):  
B. Basavaraju ◽  
H. S. Bhojya Naik ◽  
M. C. Prabhakara
Keyword(s):  
Antimicrobial Activity ◽  
Metal Complexes ◽  
Antimicrobial Agents ◽  
Spectral Studies ◽  
Antibacterial And Antifungal Activity ◽  
H Nmr ◽  
Uv Visible ◽  
Bacteria And Fungi ◽  
Antibacterial And Antifungal ◽  
Metal Ligand

2-Chloro-6-methylquinoline-3-carbaldehyde was condensed witho-Phenylenediammine and 2-aminophenol in presence of potassium iodide. The resulting Methylquinolino[3,2-b][1,5]benzodiazepine (MQBD) and Methylquinolino[3,2-b][1,5]benzoxazepine(MQBO) were characterized by elemental analysis and spectral studies. The metal chelatesvizPd(II), Rh(III) and Ru(III) of ligands were prepared and characterized by metal-ligand (M:L) ratio, UV-Visible, IR,1H NMR spectroscopes and magnetic properties. The antibacterial and antifungal activity of MQBD, MQBO and its metal complexes were screened against various bacteria and fungi. The results show that all these samples are good antimicrobial agents.

scholarly journals Synthesis and Characterization of Lanthanide(III) Nitrate Complexes with Terdentate ONO Donor Hydrazone Derived from 2-Benzimidazolyl Mercaptoaceto Hydrazide and o-Hydroxy Aromatic Aldehyde

2011 ◽  
Vol 8 (4) ◽  
pp. 1900-1910 ◽  
Author(s):  
Vinayak M. Naik ◽  
Nirmalkumar B. Mallur
Keyword(s):  
Metal Ion ◽  
Molar Conductance ◽  
Spectral Studies ◽  
Hydrazone Ligand ◽  
Keto Form ◽  
Thermal Stabilities ◽  
H Nmr ◽  
Uv Visible ◽  
Nitrate Complexes

A few eight coordinated complexes of lanthanide(III) nitrate with 2-benzimidazolyl mercaptoaceto hydrazone ligand (LH2) with the general formula [Ln(LH)2NO2]H2O (where Ln = La, Pr, Nd, Sm and Gd) have been synthesized and characterized by elemental analysis, magnetic susceptibility, molar conductance, UV-Visible, IR and1H NMR spectral studies. The experimental data sustain stoichiometry of 1:2 (metal/ligand) for the complexes. The spectral data shows that the ligand reacts in keto form and behaves as monobasic terdentate in nature. The nitrate appears to coordinate in the bidentate fashion to the metal ion. The thermal stabilities of the complexes have been studied by TGA and their kinetic parameters were calculated using Coats-Redfern and MKN methods. The antimicrobial activity studies have been under taken and results are discussed.

scholarly journals 3D-Metal Complexes Derived from Proton Pump Inhibitors-Synthesis, Characterization and Biological Studies

2012 ◽  
Vol 9 (4) ◽  
pp. 1919-1928 ◽  
Author(s):  
Suman Malik ◽  
Supriya Das ◽  
Archana Singh ◽  
Liviu Mitu
Keyword(s):  
Antimicrobial Activity ◽  
Magnetic Susceptibility ◽  
Transition Metal Ions ◽  
Spectral Studies ◽  
X Ray Diffraction ◽  
H Nmr ◽  
Pyridine Nitrogen ◽  
Biological Studies ◽  
3D Metal Complexes ◽  
Uv Visible

Complexes of lansoprazole 2[[[[3-methyl, 4-(2′,2′,2′-trifluoro-ethoxy)]-2-pyridinyl] methyl]sulfonyl]–1H–benzimidazole (LAN) with chlorides of Co(II), Ni(II), Cu(II), Mn(II) and Zn(II) were synthesized. LAN is a weak base and it can form several complexes with transition and non-transition metal ions. It should be noticed that the reaction of all the metal salts yielded bis(ligand) complexes of the general formula [ML2(H2O)2] and [ML2] (M = Co, Ni, Cu, Mn and Zn). The complexes were characterized by elemental analysis, molar conductivity, magnetic susceptibility measurements, IR,1H-NMR, UV-visible spectral studies, ESR, SEM, x-ray diffraction, TGA and mass spectra. In all the complexes ligand is coordinated by participation of the pyridine nitrogen of the benzimidazole ring and sulphonyl group. Electronic spectra and magnetic susceptibility reveal octahedral geometry for Mn(II), Co(II), Ni(II) and Cu(II) complexes and tetrahedral for Zn(II) complex. The antimicrobial activity of the ligand and its complexes against bacteriaPseudomonas aeruginosa, Staphylococcus aureusand fungiAspergillus nigerandAspergillus flavouswere investigated. The effect of metals on the antimicrobial activity of the ligand has been discussed.

Sign in / Sign up

Export Citation Format

Share Document