Studies on micellar behavior of anionic and surface-active monomers with acrylamide type in aqueous solutions

Gao, Baojiao; Ya-Ming, YU; Jiang, Liding

doi:10.1016/j.colsurfa.2006.07.034

Cited by 24 publications

(12 citation statements)

References 19 publications

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“…2-(Acrylamido)-octane sulfonic acid (AMC 8 S), 2-(acrylamido)-dodecane sulfonic acid (AMC 12 S), and 2-(acrylamido)-hexadecane sulfonic acid (AMC 16 S) were synthesized by using 1-octene, 1-dodecene, 1-hexadecene, acrylonitrile and sulfuric acid fuming in a manner analogous to the synthesis of 2-(acrylamido)-dodecane sulfonate (NaAMC 12 S) [30]. 2-(Acrylamido)-2-methylpropanesulfonic acid (AMPS) with purity above 99% was purchased from Aldrich and used without further purification.…”

Section: Monomersmentioning

confidence: 99%

Self-assembly of a series of random copolymers bearing amphiphilic side chains

Qiao

Yang

et al. 2010

Journal of Colloid and Interface Science

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Section: Monomersmentioning

confidence: 99%

Self-assembly of a series of random copolymers bearing amphiphilic side chains

Qiao

Yang

et al. 2010

Journal of Colloid and Interface Science

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“…The CMC decreased significantly with increasing salinity whereas γ CMC showed less difference. Similar to conventional anionic surfactants [30,31], increased ionic strength can compress the electrical double layer and reduce the electrostatic repulsion between head groups which contributes to the formation of micelles and reduction of the CMC. In general, the lower CMC and γ CMC , the greater the Γ max , thus the A min is smaller.…”

Section: Resultsmentioning

confidence: 99%

Laboratory Study on the Oil Displacement Properties of Sugar Amine Sulfonate Surfactant

Zhao

et al. 2017

J Surfact & Detergents

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A sugar amine sulfonate surfactant (SAS) was used to enhance oil recovery by chemical flooding. The interfacial tension between an SAS solution and four kinds of crude oil was determined. Oil (4) containing the largest amount of medium chain length components was the most suitable candidate because the IFT could be reduced to an ultralow range (10−3 mN/m) at optimum NaCl concentration. Emulsions consisting of oil (4) and SAS solution and the adsorption density of SAS on sandstone were studied. Compared with A37 (alkyl ether sulfate), SAS ws able to form more stable emulsions and the adsorption density was equivalent in the typical concentration range of chemical flooding. Both SAS and A37 adsorption data on sandstone followed the Langmuir isotherm model. SAS increased the apparent viscosity of KY‐1500 (modified polyacrylamide) in a low concentration range and improve the viscoelasticity. A combination of SAS and KY‐1500 (SP) enhanced oil recovery by 16.05 versus 14.31% (using KY‐1500 alone).

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“…A lot of small molecule surfactants need to be added in order to enable the hydrophobic monomer to be solubilized into micelles, and the addition of small molecule surfactants brings many negative influences [30]. During HAPAM polymerization, hydrophilic surfmers dissolve in an aqueous phase resulting in homogeneous phase copolymerization of hydrophilic surfmers and acrylamide [48], which avoid drawbacks of surfactant addition. Moreover, above the critical micellar concentration (CMC) of surfmer, a microblock copolymerization mechanism carried out which means that a surfmer will be inserted into the backbone structure of acrylamide main chain, which gives rise to enhanced hydrophobic properties [49], stronger thickening property of HAPAM [50], and improved salinity resistance of HAPAM.…”

Section: Hydrophobically Associating Polyacrylamide Polymers (Hapams)mentioning

confidence: 99%

Hydrophobic Polymers Flooding

El-hoshoudy¹,

Desouky²,

Betiha³

et al. 2017

Application and Characterization of Surfactants

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Crude oil and other petroleum products are crucial to the global economy today due to increasing energy demand approximately (~1.5%) per year and significant oil remaining after primary and secondary oil recovery (~45-55% of original oil in place, OOIP), which accelerates the development of enhanced oil recovery (EOR) technologies. Polymer flooding through hydrophobically associated polyacrylamides (HAPAM) is a widely implemented EOR-technique, so they attracted much attention on both academic and industrial scales. Hydrophobically associating polyacrylamide (HAPAM) prepared by free radical emulsion polymerization of acrylamide (AM) monomer, divinyl sulfone as hydrophobic crosslinked moiety and surfmers, to chemically anchor a surfmer and hydrophobic crosslinker moiety onto the back bone of acrylamide chain. After that, polymeric nanocomposite was prepared through copolymerization of prepared HAPAM with different molar ratios of silica nanoparticles through one shot synthesis. Rheological properties for the prepared composites were evaluated. Wettability evaluation carried through quantitative and qualitative techniques where the results indicate novel polymers ability to alter rock wettability from oil-wet to water-wet.

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Studies on micellar behavior of anionic and surface-active monomers with acrylamide type in aqueous solutions

Cited by 24 publications

References 19 publications

Self-assembly of a series of random copolymers bearing amphiphilic side chains

Self-assembly of a series of random copolymers bearing amphiphilic side chains

Laboratory Study on the Oil Displacement Properties of Sugar Amine Sulfonate Surfactant

Hydrophobic Polymers Flooding

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