Synthesis and physicochemical investigation of betaine type polyoxyethylene zwitterionic surfactants containing different ionic headgroups

Hussain, Syed Muhammad Shakil; Kamal, Muhammad Shahzad; Fogang, Lionel Talley

doi:10.1016/j.molstruc.2018.09.094

Cited by 38 publications

(22 citation statements)

References 26 publications

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“…The material used for the preparation of OPAH, OPAS, and OPAC was depicted in our preceding article [33]. The salinity of the synthetic seawater (SW) was 57,643 ppm and was prepared by the use of laboratory-grade chemicals, such as NaCl, Na 2 SO 4 , MgCl 2 , CaCl 2 , and NaHCO 3 .…”

Section: Methodsmentioning

confidence: 99%

“…In this work, the impact of different headgroups on the thermal stability, surfactant-polymer interactions, and foaming properties of three newly synthesized betaine-based polyoxyethylene surfactants, namely oleyl polyoxyethylene amidopropyl hydroxy sulfobetaine (OPAH), oleyl polyoxyethylene amidopropyl sulfobetaine (OPAS), and oleyl polyoxyethylene amidopropyl carboxybetaine (OPAC), were investigated. The synthesis and surface properties of these surfactants were already reported in our previous publication [33].…”

Section: Introductionmentioning

confidence: 99%

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Role of Ionic Headgroups on the Thermal, Rheological, and Foaming Properties of Novel Betaine-Based Polyoxyethylene Zwitterionic Surfactants for Enhanced Oil Recovery

2019

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Long-term thermal stability of surfactants under harsh reservoir conditions is one of the main challenges for surfactant injection. Most of the commercially available surfactants thermally degrade or precipitate when exposed to high-temperature and high-salinity conditions. In this work, we designed and synthesized three novel betaine-based polyoxyethylene zwitterionic surfactants containing different head groups (carboxybetaine, sulfobetaine, and hydroxysulfobetaine) and bearing an unsaturated tail. The impact of the surfactant head group on the long-term thermal stability, foam stability, and surfactant–polymer interactions were examined. The thermal stability of the surfactants was assessed by monitoring the structural changes when exposed at high temperature (90 °C) for three months using 1H-NMR, 13C-NMR, and FTIR analysis. All surfactants were found thermally stable regardless of the headgroup and no structural changes were evidenced. The surfactant–polymer interactions were dominant in deionized water. However, in seawater, the surfactant addition had no effect on the rheological properties. Similarly, changing the headgroup of polyoxyethylene zwitterionic surfactants had no major effect on the foamability and foam stability. The findings of the present study reveal that the betaine-based polyoxyethylene zwitterionic surfactant can be a good choice for enhanced oil recovery application and the nature of the headgroup has no major impact on the thermal, rheological, and foaming properties of the surfactant in typical harsh reservoir conditions (high salinity, high temperature).

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Role of Ionic Headgroups on the Thermal, Rheological, and Foaming Properties of Novel Betaine-Based Polyoxyethylene Zwitterionic Surfactants for Enhanced Oil Recovery

2019

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“…The main weight loss of the fabric was between 250 ℃-350 ℃, and the mass loss rate increases rapidly in this stage. This was mainly due to the depolymerization of cellulose macromolecules to produce L-glucose, which was further decomposed to form pyrolysis products and coke (Hussain et al 2019). When the temperature continues to rise, the cellulose burning residue will continue to dehydrate and release water and carbon dioxide, and the mass loss rate will be signi cantly reduced, and the char residues content will be higher and higher (Pan et al 2018).…”

Section: Thermal and Thermo-oxidative Analysis Of Fr Untreated Cotton And Treated Cottonmentioning

confidence: 99%

Synthesis of a New Phosphorus/Nitrogen Durable Flame Retardant for Cotton Fabrics

Jiang

Liu

2021

Preprint

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Phosphorus/nitrogen flame retardant ammonium three phosphoric acid glycerol ester (FR) with reactive -P-O−NH4+ groups was synthesized from glycerol, phosphoric acid and urea. At high temperature, the -P-O−NH4+ group in FR is decomposed into -P-O−H+ group. Under the action of catalyst dicyandiamide, -P-O−H+ forms phosphonic anhydride. Phosphonic anhydride can dehydrate and condense with the hydroxyl group on the 6-position carbon atom in the glucose ring of cotton fiber, forming a firm P-O-C bond, thus fixing FR molecule firmlyon cotton fiber. XRD suggested that the finishing process only slightly affected the cotton fiber structure and the surface morphology, elemental composition of char residues in cotton fabrics were tested by scanning electron microscope (SEM) and energy dispersive spectrometer (EDS). Confirmed that FR was grafted well with slight damage to the cotton structure. When the treated cotton with 25.3% weight gain(WG) in FR, the treated cotton has self extinguishing property and passed UL-94 vertical burning V-0 classification, the limiting oxygen index (LOI) was improved from 17.0–40.5%, and the LOI can still reach 30.9% after 50 laundering cycles, the cone calorimetry(CONE) analysis indicated that the peak heat release rate (PHRR) of the treated cotton was reduced from 190.3 kW/m2 to 17.9 kW/m2, and the total heat release (THR) was reduced from 2.8 MJ/m2 to 1.8 MJ/m2, The thermogravimetric(TG) and Differential scanning calorimeter (DSC) showed that the addition of FR inhibited the initial thermal degradation temperature of the treated cotton under heating conditions, and TG showed that the initial thermal degradation temperature of treated cotton in nitrogen and air was 225.9 ℃ and 221.8 ℃, respectively, which was lower than that of untreated cotton. The mechanical properties are in the usable range, which showed that treated cotton have excellent flame retardancy, durability and good flexibility.

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“…The main weight loss of the fabric was between 250 ℃-350 ℃, and the mass loss rate increases rapidly in this stage. This was mainly due to the depolymerization of cellulose macromolecules to produce L-glucose, which was further decomposed to form pyrolysis products and coke (Hussain et al 2019). When the temperature continues to rise, the cellulose burning char residue will continue to dehydrate and release water and carbon dioxide, and the mass loss rate will be signi cantly reduced, and the char residue content will be higher and higher (Pan et al 2018).…”

Section: Thermal and Thermo-oxidative Analysis Of Fr Untreated Cotton And Treated Cottonmentioning

confidence: 99%

Synthesis of a New Phosphorus/Nitrogen Durable Flame Retardant for Cotton Fabrics

Jiang

Liu

2021

Preprint

View full text Add to dashboard Cite

Phosphorus/nitrogen flame retardant ammonium three phosphoric acid glycerol ester (FR) with reactive -P-O−NH4+ groups was synthesized from glycerol, phosphoric acid and urea. At high temperature, the -P-O−NH4+ group in FR is decomposed into -P-O−H+ group. Under the action of catalyst dicyandiamide, -P-O−H+ forms phosphonic anhydride. Phosphonic anhydride can dehydrate and condense with the hydroxyl group on the 6-position carbon atom in the glucose ring of cotton fiber, forming a firm P-O-C bond, thus fixing FR molecule firmlyon cotton fiber. XRD suggested that the finishing process only slightly affected the cotton fiber structure and the surface morphology, elemental composition of char residue in cotton fabrics were tested by scanning electron microscope (SEM) and energy dispersive spectrometer (EDS). Confirmed that FR was grafted well with slight damage to the cotton structure. When the treated cotton with 25.3% weight gain(WG) in FR, the treated cotton has self extinguishing property and passed UL-94 vertical burning V-0 classification, the limiting oxygen index (LOI) was improved from 17.0–40.5%, and the LOI can still reach 30.9% after 50 laundering cycles, the cone calorimetry(CONE) analysis indicated that the peak heat release rate (PHRR) of the treated cotton was reduced from 190.3 kW/m2 to 17.9 kW/m2, and the total heat release (THR) was reduced from 2.8 MJ/m2 to 1.8 MJ/m2, The thermogravimetric(TG) and Differential scanning calorimeter (DSC) showed that the addition of FR inhibited the initial thermal degradation temperature of the treated cotton under heating conditions, and TG showed that the initial thermal degradation temperature of treated cotton in nitrogen and air was 225.9 ℃ and 221.8 ℃, respectively, which was lower than that of untreated cotton. The mechanical properties are in the usable range, which showed that treated cotton had excellent flame retardancy, durability and good flexibility.

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Synthesis and physicochemical investigation of betaine type polyoxyethylene zwitterionic surfactants containing different ionic headgroups

Cited by 38 publications

References 26 publications

Role of Ionic Headgroups on the Thermal, Rheological, and Foaming Properties of Novel Betaine-Based Polyoxyethylene Zwitterionic Surfactants for Enhanced Oil Recovery

Role of Ionic Headgroups on the Thermal, Rheological, and Foaming Properties of Novel Betaine-Based Polyoxyethylene Zwitterionic Surfactants for Enhanced Oil Recovery

Synthesis of a New Phosphorus/Nitrogen Durable Flame Retardant for Cotton Fabrics

Synthesis of a New Phosphorus/Nitrogen Durable Flame Retardant for Cotton Fabrics

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