Some alginates polymeric cationic surfactants; surface study and their evaluation as biocide and corrosion inhibitors

Shaban, Samy M.; Aiad, Ismail; Moustafa, A. H.; Aljoboury, Omar H.

doi:10.1016/j.molliq.2018.10.017

Cited by 94 publications

(33 citation statements)

References 65 publications

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“…The protection effectiveness of the starch modified with sodium dodecyl sulfate (DS) and cetyltrimethyl ammonium bromide (CMAB) was reported using chemical and electrochemical techniques [201]. Later on several other studies dealing with the anticorrosive effect of starch [202][203][204], pectin [205][206][207][208][209][210], dextrin & cyclodextrin [13,[211][212][213][214][215], pectate [216,217], algenates [218,219] and exudate gums [220][221][222][223][224][225] are reported for metals and alloys in different electrolytes. Synergistic effect of halide ions is also reported for different classes of biopolymers [226][227][228][229].…”

Section: Derivatization Of Cellulose Has Been Widely Reported However Carboxymethyl Cellulose (Cmc)mentioning

confidence: 99%

Recent developments in sustainable corrosion inhibitors: design, performance and industrial scale applications

et al. 2021

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Section: Derivatization Of Cellulose Has Been Widely Reported However Carboxymethyl Cellulose (Cmc)mentioning

confidence: 99%

Recent developments in sustainable corrosion inhibitors: design, performance and industrial scale applications

et al. 2021

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“…Катіонні поверхнево-активні речовини (кПАР) широко застосовуються в промисловості, медицині та в дослідженнях певних фізико-хімічних процесів. Результати дослідження біологічної активності кПАР [1], зокрема, протимікробної [2,3], антигрибкової [4] та біоцидних властивостей [5] вказують на значну перспективність таких сполук в цій області. Крім того, проводяться дослідження протикорозійних властивостей кПАР [5][6][7], а здатність стабілізувати емульсії [8] обумовлює використання кПАР при переробці олійних речовин [9].…”

Section: вступunclassified

CALCULATION OF HYDROPHILIC-LIPOPHILIC BALANCE FOR THE SYSTEM OF 2,3-SUBSTITUTED-5,6-DIHYDRO-3H-[1,3]THIAZOLO[3,2-b][1,2,4]TRIAZOL-7-IUM

Fizer¹,

Кривов’яз²,

Fizer³

et al. 2021

Наук. вісник Ужг

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Cationic surfactants are widely used in industry, medicine, and in studies of a number of physicochemical processes. Analysis of the literature data indicates the high biological activity of cationic surfactants, particularly antimicrobial, antifungal, and in general biocidal. Currently, QSPR methods are increasingly used; they allow the prediction of properties based on the compound's molecular structure. One of the important parameters of cationic surfactants is the ratio of polar (positively charged "head") and non-polar (long hydrocarbon "tail") parts of their molecules. This ratio is called hydrophilic-lipophilic balance (HLB). In 1949, Griffin and Davis developed HLB scales of colloidal surfactants, according to which the HLB parameter can take values in the range from 1 (the substance is insoluble in water but soluble in nonpolar liquids) to 40 (the substance is soluble in water and insoluble in nonpolar liquids) conventional units. Given the complexity of the experimental determination of HLB, mathematical additive models for its calculation were developed. In our previous studies, methods for the synthesis of cationic 1,2,4-triazolium systems, including cationic surfactants based on 1,3-thiazolo-1,2,4-triazole condensed nucleus, were developed. Thus, 2,3-substituted-5,6-dihydro-3H-[1,3]thiazolo[3,2-b][1,2,4]triazol-7-ium were selected as model objects in this study. The construction of model compounds was performed in the Avogadro program with subsequent optimization of the geometry using the force field MMFF94. The HLB index was calculated by three methods: Griffin, Davis, and the ratio of polar and nonpolar areas on the isosurface of the molecule using the software package Vega ZZ. Simple approach for calculating HLB based on the number of carbon atoms in long alkyl substituents have been established. HLB values are the largest when calculating the ratio of polar and non-polar parts of the molecule. The calculated values of HLB vary in a wide range, which allows referring the investigated systems to emulsifiers "oil/water" (for short alkyl chains C1–C4), wetting agents (for short alkyl chains C1–C5), emulsifiers "water/oil" (for alkyl chains C5–C20), antifoams (for alkyl chains C18–C20).

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“…The correlation coef-cients R 2 values of Langmuir isotherm are 0.999; however, the slope of the curve derived from the unity. To try overcome this discrepancy, Shaban et al 75,76 reported that the deviation from the unity of the slope for the Langmuir isotherm could be due to the interactions between the adsorbed species, which adsorb on several sites, onto the metal surface and/or variation of adsorption heat with increasing surface coverage. These factors are not taken into account by Langmuir model.…”

Section: Adsorption Studiesmentioning

confidence: 99%

Experimental and theoretical investigations of benzoic acid derivatives as corrosion inhibitors for AISI 316 stainless steel in hydrochloric acid medium: DFT and Monte Carlo simulations on the Fe (110) surface

et al. 2020

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Some alginates polymeric cationic surfactants; surface study and their evaluation as biocide and corrosion inhibitors

Cited by 94 publications

References 65 publications

Recent developments in sustainable corrosion inhibitors: design, performance and industrial scale applications

Recent developments in sustainable corrosion inhibitors: design, performance and industrial scale applications

CALCULATION OF HYDROPHILIC-LIPOPHILIC BALANCE FOR THE SYSTEM OF 2,3-SUBSTITUTED-5,6-DIHYDRO-3H-[1,3]THIAZOLO[3,2-b][1,2,4]TRIAZOL-7-IUM

Experimental and theoretical investigations of benzoic acid derivatives as corrosion inhibitors for AISI 316 stainless steel in hydrochloric acid medium: DFT and Monte Carlo simulations on the Fe (110) surface

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