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Critical role of nanocomposites at air–water interface: From aqueous foams to foam-based lightweight functional materials
2021, Chemical Engineering JournalCitation Excerpt :The schematic of preparation the core–shell PVP-coated silica composite NPs is shown in Fig. 4b. It has been reported that PVP can adsorb on silica surface strongly through hydrogen bonding, between the carbonyl groups of PVP molecules and the silanol groups on silica surface, with a segmental adsorption energy of around 4 kT [95]. Thus, the adsorption of PVP on silica can be regarded as irreversible because of the small possibility that all the adsorbed polymer segments desorb from the surface simultaneously [96].
Effect of affinity on the structure formation in highly size asymmetric bimodal suspensions
2018, Colloids and Surfaces A: Physicochemical and Engineering AspectsAdsorption of poly(ethylene oxide)-containing amphiphilic polymers on solid-liquid interfaces: Fundamentals and applications
2017, Advances in Colloid and Interface ScienceCitation Excerpt :The ability of solvents to tune the structure is related to basic thermodynamic interactions between the solvent and polymer which control solubility and thus the self-assembly properties of the block copolymers. The influence of added organics on PEO-PPO-PEO and PEO-containing polymer adsorption has not been studied to the same extent [115,116,151,205–207]. Early studies using NMR relaxation showed that PEO homopolymers can be displaced from aqueous silica dispersions by the addition of polar organic solvents which have a high affinity for the surface and therefore compete for adsorption sites [112].
Organic admixtures and cement particles: Competitive adsorption and its macroscopic rheological consequences
2016, Cement and Concrete ResearchAdsorption of chemical admixtures
2016, Science and Technology of Concrete AdmixturesNanoparticle surface modification by amphiphilic polymers in aqueous media: Role of polar organic solvents
2013, Journal of Colloid and Interface ScienceCitation Excerpt :The presence of an additive may influence the particle–polymer interface, the polymer organization in the bulk as well as on the particle surface, and consequently the properties of the formulation. For example, additives having stronger attractive interactions with nanoparticles than an adsorbed polymer may cause polymer desorption [4–6]. Such additives are known as displacers [4,7–11].