Electro-optic Kerr effect in the study of mixtures of oppositely charged colloids. The case of polymer-surfactant mixtures in aqueous solutions.
Sign Up to like & getrecommendations! Published in 2017 at "Advances in colloid and interface science"
DOI: 10.1016/j.cis.2017.05.015
Abstract: In this review I highlight a very sensitive experimental technique for the study of polymer-surfactant complexation: The electro-optic Kerr effect. This review does not intend to be exhaustive in covering the Kerr Effect nor polymer-surfactant… read more here.
Keywords: electro optic; effect; polymer surfactant; kerr effect ... See more keywords
Monitoring the role of polymer and surfactant concentrations on bubble size distribution in colloidal gas aphron based fluids
Sign Up to like & getrecommendations! Published in 2018 at "Colloids and Surfaces A: Physicochemical and Engineering Aspects"
DOI: 10.1016/j.colsurfa.2018.08.020
Abstract: Abstract Colloidal gas aphron (CGA) based fluids have recently been introduced to develop depleted hydrocarbon reservoirs due to their ability in controlling fluid losses. Bubbles size of CGAs plays an important role in pore blockage… read more here.
Keywords: surfactant concentrations; size distribution; polymer surfactant; bubble size ... See more keywords
Sequential electrostatic assembly of a polymer surfactant corona increases activity of the phosphotriesterase arPTE.
Sign Up to like & getrecommendations! Published in 2019 at "Bioconjugate chemistry"
DOI: 10.1021/acs.bioconjchem.9b00664
Abstract: We present a new methodology for the generation of discrete molecularly-dispersed enzyme-polymer-surfactant bioconjugates. Significantly, we demonstrate that a more-than three-fold increase in the catalytic efficiency of the diffusion-limited phosphotriesterase arPTE can be achieved through sequential… read more here.
Keywords: methodology; phosphotriesterase arpte; polymer; polymer surfactant ... See more keywords
Investigation of Polymer/Surfactant Interactions and Their Impact on Itraconazole Solubility and Precipitation Kinetics for Developing Spray-Dried Amorphous Solid Dispersions.
Sign Up to like & getrecommendations! Published in 2018 at "Molecular pharmaceutics"
DOI: 10.1021/acs.molpharmaceut.7b00902
Abstract: Methods were developed to systematically screen different polymer-surfactant combinations for the purpose of enhancing amorphous active pharmaceutical ingredient (API) solubility while maintaining its physical stability. Itraconazole (ITZ) was chosen as the model API mostly due… read more here.
Keywords: surfactant combinations; surfactant interactions; solubility; polymer surfactant ... See more keywords
Polymer–Surfactant Flooding in Low-Permeability Reservoirs: An Experimental Study
Sign Up to like & getrecommendations! Published in 2022 at "ACS Omega"
DOI: 10.1021/acsomega.1c06582
Abstract: Chemical flooding technology has been widely applied in medium- and high-permeability reservoirs. However, it is rarely applied in low-permeability reservoirs, which is mainly limited by reservoir physical properties, chemical agents, injection capacity, and so forth.… read more here.
Keywords: polymer surfactant; low permeability; surfactant flooding; permeability reservoirs ... See more keywords
Light-induced switching of polymer-surfactant interactions enables controlled polymer thermoresponsive behaviour.
Sign Up to like & getrecommendations! Published in 2021 at "Chemical communications"
DOI: 10.1039/d1cc02054d
Abstract: Hydroxypropyl cellulose (HPC) and arylazopyrazole (AAP) mixtures can be remotely controlled by light and temperature. We show that the hydrophobic interactions between HPC polymers with AAP surfactants can be drastically changed by changing the surfactants… read more here.
Keywords: light induced; induced switching; surfactant interactions; polymer surfactant ... See more keywords
Increasing Cellular Uptake and Permeation of Curcumin Using a Novel Polymer-Surfactant Formulation
Sign Up to like & getrecommendations! Published in 2022 at "Biomolecules"
DOI: 10.3390/biom12121739
Abstract: Several therapeutically active molecules are poorly water-soluble, thereby creating a challenge for pharmaceutical scientists to develop an active solution for their oral drug delivery. This study aimed to investigate the potential for novel polymer-surfactant-based formulations… read more here.
Keywords: polymer surfactant; formulation; cellular uptake; novel polymer ... See more keywords
Study on Oil Recovery Mechanism of Polymer-Surfactant Flooding Using X-ray Microtomography and Integral Geometry
Sign Up to like & getrecommendations! Published in 2022 at "Molecules"
DOI: 10.3390/molecules27238621
Abstract: Understanding pore-scale morphology and distribution of remaining oil in pore space are of great importance to carry out in-depth tapping of oil potential. Taking two water-wet cores from a typical clastic reservoir in China as… read more here.
Keywords: oil; polymer surfactant; oil recovery; geometry ... See more keywords
Using Polymer–Surfactant Charge Ratio to Control Synergistic Flocculation of Anionic Particulate Dispersions
Sign Up to like & getrecommendations! Published in 2022 at "Polymers"
DOI: 10.3390/polym14173504
Abstract: This study investigates the flocculation induced destabilization of particulate dispersions by oppositely charged polymer–surfactant complexes, with a particular focus on controlling interactions by modulating the charge ratio Z, (where Z = [+polymer]/[−surfactant]) via [−surfactant] at… read more here.
Keywords: polymer surfactant; destabilization; polymer; particulate dispersions ... See more keywords
A Novel Cationic Polymer Surfactant for Regulation of the Rheological and Biocidal Properties of the Water-Based Drilling Muds
Sign Up to like & getrecommendations! Published in 2023 at "Polymers"
DOI: 10.3390/polym15020330
Abstract: The copolymer of N,N-diallyl-N,N-dimethylammonium chloride and N-[3-(Dimethylamino)propyl]methacrylamide (DADMAC–DMAPMA) was synthesized by radical polymerization reaction in an aqueous solution in the presence of the initiator ammonium persulfate (NH4)2S2O8. The molar compositions of the synthesized copolymers were… read more here.
Keywords: copolymer; polymer surfactant; dadmac dmapma; biocidal ... See more keywords