Structural and thermal characterization of macro-branched functional terpolymer containing 8-hydroxyquinoline moieties with enhancing biocidal properties

Chauhan, Narendra Pal Singh

doi:10.1016/j.jiec.2012.11.025

Cited by 21 publications

(6 citation statements)

References 44 publications

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“…As demonstrated by Nguyen et al [31], iterative dip coating of a foam in a graphene solution allows desired amounts of graphene sheets to be deposited on the pore-wall surface of melamine foams, rendering the foams superhydrophobic and superoleophilic, with a WCA of 162° and a chloroform absorption capacity of 165 times their own weight (1.86 ton m -3 ) [31, [50][51][52]. Second, various functional groups or additional organic/inorganic materials can be introduced to remarkably vary surface wettability [53][54][55]. For example, Zeng et al [32] and Charinpanitkul et al [52] reported a simple method to produce CNT-based films with exceptional superhydrophobicity and impact icephobicity based on deposition of acetone-treated single-walled CNTs (SWCNTs) onto glass substrates.…”

Section: Surface Roughnessmentioning

confidence: 99%

Superhydrophobic carbon-based materials: a review of synthesis, structure, and applications

Meng¹,

Park²

2014

Carbon letters

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Materials with appropriate surface roughness and low surface energy can form superhydrophobic surfaces, displaying water contact angles greater than 150°. Superhydrophobic carbon-based materials are particularly interesting due to their exceptional physicochemical properties. This review discusses the various techniques used to produce superhydrophobic carbon-based materials such as carbon fibers, carbon nanotubes, graphene, amorphous carbons, etc. Recent advances in emerging fields such as energy, environmental remediation, and thermal management in relation to these materials are also discussed.

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Section: Surface Roughnessmentioning

confidence: 99%

Superhydrophobic carbon-based materials: a review of synthesis, structure, and applications

Meng¹,

Park²

2014

Carbon letters

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“…1 H NMR (400 MHz) spectrum was recorded on Bruker DPX-300 spectrometer using DMSO-d 6 as the solvent and TMS as internal standard.…”

Section: Spectral Characterizationsmentioning

confidence: 99%

“…[5] Moreover, p-chloroacetophenone oxime, p-hydroxy benzaldehyde oxime, 4-acetylpyridine oxime, and 8-hydroxyquinioline-based terpolymers were synthesized in the presence of an acid with excellent biocidal properties. [6][7][8][9][10][11] The oxime click reaction is shown to be a straightforward methodology for the synthesis of PEGpolysaccharide di-block copolymers. The method is applicable to unmodified polysaccharides with a reductive end as demonstrated for dextran, hyaluronic acid, and chitosan.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of bio-based terpolymer derived from vanillin oxime, formaldehyde, and p-hydroxyacetophenone

Chauhan

2013

Designed Monomers and Polymers

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A monomer, vanillin oxime (VO), has been synthesized from vanillin and hydroxylamine hydrochloride, and its terpolymer resin VO-formaldehyde-p-hydroxyacetophenone (VOFHA) has also been synthesized by condensation of VO, formaldehyde, and p-hydroxyacetophenone (HA) in 1:2:1 M proportion in the presence of hydrochloric acid. The structures of monomer and terpolymer have been investigated by FT-IR and 1 H NMR techniques. The number-average molecular weight and polydispersity index of the terpolymer were found to be 5337.6 g/mol and 1.33, respectively, by gel permeation chromatography. Apparent activation energies of the thermal decomposition of the terpolymer were determined using the Flynn-Wall-Ozawa method. Terpolymer (VOFHA) has shown highest zone of inhibition as compare to other terpolymer and standard drugs. This novel bio-responsive antimicrobial terpolymer shows promise for use in the control of medical devices associated infections.

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“…The yield of (E) 4-acetylpyridine oxime, mp 157°C, is 27.1 g (Yield 66%). In dimethyl sulfoxide-d 6 , the E and Z isomers show OH proton resonance at δ 11.65 and 10.97 ppm, respectively. [21] The structure of monomer, APO, was identified by FT-IR and 1 H NMR spectra and it was found to be consistent with the assigned structure of (E)-4-Acetylpyridine oxime.…”

Section: Synthesis Of (E)-4-acetylpyridine Oxime (Apo)mentioning

confidence: 99%

“…The use of functional terpolymers in all sphere of life has increased abundantly increased in recent years because of their large applications like packaging, adhesives and coatings in electrical sensor, electroluminescent devices, hardener for epoxy resin, ion exchangers, thermal stable, and antimicrobial materials. [1][2][3][4][5][6][7][8][9] Singru and co-workers [10] studied the electrical property, thermal stability, morphology, photoluminescence, and ion-exchange properties of p-cresol-formaldehyde-melamine terpolymers resin. A polyacrlonitile (PAN) has been prepared with amidoxime-nitrile-3 hydroxyphenyl-1,2,4-oxadiazole (ANHOT) as pendant group has been prepared.…”

Section: Introductionmentioning

confidence: 99%

Spectral and thermal investigation of designed terpolymers bearing p-acetylpyridine oxime moieties having excellent antimicrobial properties

Chauhan

2013

Designed Monomers and Polymers

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A new monomer, (E)-4-acetylpyridine oxime (APO), was prepared by reaction of 4-acetylpyridine and hydroxylamine hydrochloride. Its terpolymers with 4-hydroxyacetophenone (HA)/4-hydroxybenzaldehyde (HB) and formaldehyde (F) were synthesized by using an acid catalyst in 1:1:5 M proportions. The synthesized monomer (APO) and its terpolymers were identified by FT-IR and 1 H NMR spectroscopic data. The apparent number average molecular weight and viscosities were determined by gel permeation chromatography and Ubbelohde viscometer, respectively. Thermal stability of these resins was determined by differential scanning calorimetry (DSC). The activation energy (E a ) values of the thermal decompsition were investigated with thermogravimetric analysis (TGA) by isoconversional Flynn-Wall-Ozawa method. Empirical kinetic models, as well as generalized master plots, were applied to explain the degradation mechanisms of terpolymers. The terpolymers strongly inhibited the growth of a wide variety of microorganisms, including Grampositive, Gram-negative bacteria and fungi.

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Structural and thermal characterization of macro-branched functional terpolymer containing 8-hydroxyquinoline moieties with enhancing biocidal properties

Cited by 21 publications

References 44 publications

Superhydrophobic carbon-based materials: a review of synthesis, structure, and applications

Superhydrophobic carbon-based materials: a review of synthesis, structure, and applications

Preparation and characterization of bio-based terpolymer derived from vanillin oxime, formaldehyde, and p-hydroxyacetophenone

Spectral and thermal investigation of designed terpolymers bearing p-acetylpyridine oxime moieties having excellent antimicrobial properties

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