Synthesis and colloid-chemical properties of new quaternary ammonium compounds

Novoselova, N. V.; Бобылева, А. А.; Lukovskaya, E. V.; Sumtsova, E. A.; Matveenko, V. N.; Анисимов, А. В.; Теренин, В. И.

doi:10.1134/s004057950705034x

Cited by 3 publications

(4 citation statements)

References 7 publications

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“…27 The final goal of this study was the preparation of a grafted PEAA. All organic materials required for the synthesis were commercially available in high purity and were used as received without further purification.…”

Section: Methodsmentioning

confidence: 99%

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Preparation of Poly(ethylene‐co‐acrylic acid) Grafted with Aliphatic Quaternary Ammonium Salts as Antibacterial Polymers

Noh

et al. 2017

Bulletin Korean Chem Soc

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To improve the antibacterial performance of poly(ethylene-co-acrylic acid) (PEAA) copolymer, aliphatic quaternary ammonium salts (QASs) was grafted into PEAA copolymers via a Steglich esterification reaction using N,N 0 -dicyclohexylcarbodiimide (DCC) as a dehydrating agent. The polymers were synthesized using dodecyl dimethyl hydroxyethyl ammonium chloride (DDHAC), which was prepared by quaternization of dimethylethanolamine (DMEA) with 1-chlorododecane. These polymers effectively inhibited the growth of microorganisms due to their hydrophobic chains, which were bound to PEAA copolymers. The obtained PEAA-g-DDHAC (PGD) was investigated by attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR), proton nuclear magnetic resonance ( 1 H NMR), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), and antibacterial tests. The results showed that the antibacterial effects of PGDs were significantly improved by alkyl grafting, and this improvement depended on reaction temperature. The highest antibacterial activity was observed for polymers synthesized at 135 C against Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli. Their decomposition rate was accelerated as the temperature increased above 165 C because of the thermal decomposition of DDHAC.

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Section: Methodsmentioning

confidence: 99%

“…The synthesis of the QAS was described in a previous publication . The final goal of this study was the preparation of a grafted PEAA.…”

Section: Methodsmentioning

confidence: 99%

Preparation of Poly(ethylene‐co‐acrylic acid) Grafted with Aliphatic Quaternary Ammonium Salts as Antibacterial Polymers

Noh

et al. 2017

Bulletin Korean Chem Soc

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“…8 shows a pictorial representation of QUAT and CO 2 − -CUP surface with the hydration layer. Novoselova et al [33] reported that the viscosity of aqueous solutions of quaternary ammonium functional surfactant remained constant (~1 cP) until the critical micelle concentration (CMC,~0.01 mol/L) was reached. Beyond the CMC, the viscosity of surfactant system increased steadily with increasing concentration.…”

Section: Specific Viscosity Comparisonmentioning

confidence: 99%

“…4 Plot of shear stress against shear rate for QUAT-CUP-55K at 25°C and 29°C associated water fraction, i.e., a higher tertiary electroviscous effect. Novoselova et al have indicated that the quaternary ammonium functional hydrogels and polymers displayed higher water absorption than the carboxylate counterparts [33]. The associated water fraction and the thickness of surface water layer of CUP particles were further calculated from the intrinsic viscosity of the three CUP systems which was determined from the slope of ln (η rel ) versus volume fraction plots as shown in Fig.…”

Section: Specific Viscosity Comparisonmentioning

confidence: 99%

Synthesis and characterization of cationic colloidal unimolecular polymer (CUP) particles

2015

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Cationic colloidal unimolecular polymer (CUP) particles were prepared by using a lower concentration of the quaternary ammonium functional copolymers during the process of water reduction. True nanoscale (diameter 3-9 nm), zero-volatile organic content (VOC), spheroidal CUP particles, and self-stabilized via electro-repulsion of surface cationic groups were obtained. The viscosity of the cationic CUP systems w as influenced by the electroviscous effects arising from the surface charge and the associated surface water layer. The density of surface water was 1.6 % greater than the bulk water density which was attributed to the structuring of water around charged quaternary ammonium groups. The equilibrium surface tension values decreased linearly with increasing concentration and surface charge density of CUP particles due to a greater reduction in surface energy. The rate of surface tension reduction determined by maximum bubble pressure method decreased with increasing concentration and the molecular weight of the CUP due to diffusion effects.

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Synthesis and characterization of novel poly(ionic liquid)s and their viscosity-increasing effect

Zang

Chang

Zheng

et al. 2020

Journal of Molecular Liquids

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Synthesis and colloid-chemical properties of new quaternary ammonium compounds

Cited by 3 publications

References 7 publications

Preparation of Poly(ethylene‐co‐acrylic acid) Grafted with Aliphatic Quaternary Ammonium Salts as Antibacterial Polymers

Preparation of Poly(ethylene‐co‐acrylic acid) Grafted with Aliphatic Quaternary Ammonium Salts as Antibacterial Polymers

Synthesis and characterization of cationic colloidal unimolecular polymer (CUP) particles

Synthesis and characterization of novel poly(ionic liquid)s and their viscosity-increasing effect

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