Swelling behavior of PMMA-g-PEO microgel particles by organic solvents

Kaneda, Isamu; Vincent, Brian

doi:10.1016/j.jcis.2003.11.004

Cited by 33 publications

(17 citation statements)

References 30 publications

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“…When ethanol and 2-propanol concentration increased from 40 to 70% (v/v), respectively, or methanol increased from 50 to 70%, the diameter of microgels increases remarkably several times than that in pure water because of the particles aggregation. The results are different from those reported in literatures [34][35][36][37]. Colloid stability depends upon the balance between van der Waals attraction and steric forces.…”

Section: Stability Of Microgel In Alcoholic Solutionscontrasting

confidence: 99%

Composite structure of temperature sensitive chitosan microgel and anomalous behavior in alcohol solutions

Liu

Huang

Liu

et al. 2007

Journal of Colloid and Interface Science

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Section: Stability Of Microgel In Alcoholic Solutionscontrasting

confidence: 99%

Composite structure of temperature sensitive chitosan microgel and anomalous behavior in alcohol solutions

Liu

Huang

Liu

et al. 2007

Journal of Colloid and Interface Science

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“…Microgels are polymeric particles with a crosslinked network structure that are swollen in a suitable solvent (Saunders and Vincent 1999). They can be classified based on their stimulus-responsive nature (Das et al 2006) such as reversible volume changes in response to changes in temperature (Hoare and Pelton 2004), pH (Hoare and Pelton 2004), ionic strength (Neyret and Vincent 1997), quality of solvent (Kaneda and Vincent 2004;Pich et al 2004), or magnetic field strength (Sawai et al 1992;Fernandez-Nieves and FB 2000;FernandezNieves and Marquez 2000).…”

Section: Introductionmentioning

confidence: 99%

Rheology of microgels in single particle confinement

et al. 2015

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In this work, we investigate the shear rheology of Carbopol 981 microgel particle suspensions, confined between shearing plates with gap separations from 5 to 100 μm. We show that even for confining gaps smaller than that of the gel particle size, the yielding of concentrated microgel suspensions is delayed to stress levels above the bulk yield stress. Furthermore, for stresses below this new yield point, slip is described by elastohydrodynamic lubrication theory as long as the direct confinement of the single gel particles between the shearing surfaces is limited to a Hertzian deformation. For a strong, non-Hertzian particle deformation, the slip layer breaks down and leads to a frictional interaction of the single confined particle with the two shearing surfaces, depending on their surface roughness. Lubrication pressures and friction coefficients have been quantified with in situ normal force measurements on the confined particles, which have also been utilized to unambiguously determine the relevant swollen particle dimensions.

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“…The swelling of PMMA‐based nanoparticles was also investigated by Kaneda et al ., who added several water‐miscible and immiscible organic solvents to PMMA/water mixtures and noted an increase in the particle size. However, they observed that the swelling behavior differed according to each polymer and solvent used …”

Section: Resultsmentioning

confidence: 99%

“…However, they observed that the swelling behavior differed according to each polymer and solvent used. [23] Both the centrifugated and precipitated particles were displayed with an AFM. Figure 5 shows a typical topographic AFM image of polyMAOETIB particles synthesized by microemulsion polymerization.…”

Section: Resultsmentioning

confidence: 99%

Size‐controllable synthesis of polymeric iodine‐carrying nanoparticles for medical CT imaging

Illert

Wängler

et al. 2017

Polymers for Advanced Techs

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Iodine‐carrying nanopolymers with particle sizes ranging from 30 to 930 nm were synthesized by microemulsion polymerization. 2‐Methacryloyloxyethyl(2,3,5‐triiodobenzoate) was used as the monomer. Different surfactants were tested to control the particle size. Cetyltrimethylammonium bromide and cetyltrimethylammonium chloride were used as cationic surfactants, and sodium oleate and sodium dodecyl sulfate acted as anionic surfactants. The influences of various reaction parameters, e.g. the amount of surfactant, amount of initiator, and the reaction temperature, were investigated. The particle size was highly adjustable through variation of the reaction parameters. The particles were imaged with an atomic force microscope. In addition, particle workup for further medical application was explored. The particles provided good visible computer tomography contrast. Copyright © 2017 John Wiley & Sons, Ltd.

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Swelling behavior of PMMA-g-PEO microgel particles by organic solvents

Cited by 33 publications

References 30 publications

Composite structure of temperature sensitive chitosan microgel and anomalous behavior in alcohol solutions

Composite structure of temperature sensitive chitosan microgel and anomalous behavior in alcohol solutions

Rheology of microgels in single particle confinement

Size‐controllable synthesis of polymeric iodine‐carrying nanoparticles for medical CT imaging

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