Assemblies of poly(styrene/⇌-tert-butoxy-ω-vinyl-benzyl-poryglycidol) Microspheres with different diameters deposited on mica plates

Przerwa, Ewelina; Sosnowski, S.; Słomkowski, Stanisław

doi:10.1134/s0965545x09110145

Cited by 2 publications

(7 citation statements)

References 25 publications

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“…The general mechanism governing the formation of stripe-like monolayer assemblies of spherical particles at the liquid-solid-air interface has been previously reported. 22 Similar capillary forces should be responsible for the assembly of the spheroidal particles here (see SI2). Evaporation of ethanol close to the triphasic interface causes a flow of liquid and particles to its vicinity.…”

Section: Formation Of the Stripe-like Spheroidal Particle Assembliementioning

confidence: 76%

“…In the vicinity of the interface, capillary forces act on the microparticles. For a liquid wetting a substrate, one component of the capillary force pushes the microparticles toward the surface of the substrate, and the second component moves the particles along the substrate in the direction of the liquid phase . As a result, the whole stripe grows downward by collecting new particles.…”

Section: Resultsmentioning

confidence: 99%

“…However, the spheroidal particles achieve a stable position along the edge of the stripe only when their long axes are parallel to the edge of the stripe and the particles cannot rotate (see Figure SI4A of the liquid phase. 22 As a result, the whole stripe grows downward by collecting new particles. However, the growth of the stripe is hampered by shearing forces.…”

Section: Formation Of the Stripe-like Spheroidal Particle Assembliementioning

confidence: 99%

“…Colloidal crystals formed on solid substrates drawn out of particle suspensions can have very interesting morphologies. Optimization of the particle concentration and rate of plate movement have resulted in assemblies composed of regularly distributed parallel stripes of the colloidal crystals …”

Section: Introductionmentioning

confidence: 99%

“…Optimization of the particle concentration and rate of plate movement have resulted in assemblies composed of regularly distributed parallel stripes of the colloidal crystals. 22 It should be noted, however, that the majority of colloidal crystals described in the abovementioned papers are composed of spherical particles. There are only a few reports on colloidal crystals made from nonspherical particles, most of which are inorganic.…”

mentioning

confidence: 99%

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Colloidal liquid crystal type assemblies of spheroidal polystyrene core/polyglycidol‐rich shell particles (P[S/PGL]) formed at the liquid‐silicon‐air interface by a directed dewetting process

Mickiewicz

Basiǹska

Gosecka

et al. 2019

Polymers for Advanced Techs

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A method for the preparation of stripe‐like monolayers of microspheroids is described. The particles were obtained from polystyrene core/polyglycidol‐rich shell microspheres by stretching poly (vinyl alcohol) films that contain embedded particles. The stretching was performed under controlled conditions at temperatures above the Tg of the films and particles. The elongated films were dissolved in water, and the microspheroids were subsequently removed and purified from the poly (vinyl alcohol). The aspect ratio (AR) of the particles, which denotes the ratio of the lengths of the longer to shorter particle axes, was determined by the film elongation. The AR values were in the range of 2.9‐7.7. Spheroidal particles with various ARs were deposited onto silicon wafers from an ethanol (EtOH) suspension. The particle concentration and volume of the suspension were the same in each experiment. Evaporation of the EtOH yielded stripes of spherical particles packed into nematic‐type colloidal crystals and assembled into monolayers. The orientation of the stripes after ethanol evaporation was perpendicular to the triphasic (silicon‐ethanol‐air) interface along the silicon substrate. The adsorbed stripes on the wafers were characterized in terms of their interstripe distance (ID), stripe width, and crystal domain size. Nematic‐type spheroid arrangements in the stripes were the dominant structure, which enabled denser packing of the particles into colloidal crystals than that allowed by the smectic‐type arrangements. Furthermore, the number of spheroids adsorbed per surface unit of the silicon wafers was similar for all ARs, but the width and frequency of the spheroid stripes adsorbed on the wafers were different.

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Section: Formation Of the Stripe-like Spheroidal Particle Assembliementioning

confidence: 76%

Section: Resultsmentioning

confidence: 99%

Section: Formation Of the Stripe-like Spheroidal Particle Assembliementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Colloidal liquid crystal type assemblies of spheroidal polystyrene core/polyglycidol‐rich shell particles (P[S/PGL]) formed at the liquid‐silicon‐air interface by a directed dewetting process

Mickiewicz

Basiǹska

Gosecka

et al. 2019

Polymers for Advanced Techs

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Ring‐opening (co)polymerization strategies of selected oxacyclic monomers to control and provide tailored polymers with desired properties

Trzebicka,

Wałach,

Kurcok

et al. 2024

Polymers for Advanced Techs

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Ring‐opening polymerization (ROP) is a versatile synthetic method used to produce polymers from cyclic monomers, particularly oxacyclic monomers such as lactones and cyclic ethers. Oxacyclic monomers polymerize with anionic or cationic initiators. For selected monomers, such as glycidol, β‐butyrolactone and higher lactones, methods, and mechanisms of polymerization are presented, the understanding of which has allowed control of these processes. The use of appropriate polymerization techniques and methods, as well as conducting the copolymerization, mainly block copolymerization, makes it possible to control the architecture, molar mass, and end groups of the resulting polymers. These parameters determine the properties of macromolecules, such as solubility, ability to aggregate in aqueous solutions, thermoresponsiveness, and degradability. By carefully selecting monomers, catalysts, and polymerization conditions, ROP strategies can be tailored to produce polymers with precise molecular structures and desired properties for a wide range of applications. This review mainly focuses on precisely controlled syntheses that lead to well‐defined macromolecules consisting mostly of polyether and/or polyester chains.

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Assemblies of poly(styrene/⇌-tert-butoxy-ω-vinyl-benzyl-poryglycidol) Microspheres with different diameters deposited on mica plates

Cited by 2 publications

References 25 publications

Colloidal liquid crystal type assemblies of spheroidal polystyrene core/polyglycidol‐rich shell particles (P[S/PGL]) formed at the liquid‐silicon‐air interface by a directed dewetting process

Colloidal liquid crystal type assemblies of spheroidal polystyrene core/polyglycidol‐rich shell particles (P[S/PGL]) formed at the liquid‐silicon‐air interface by a directed dewetting process

Ring‐opening (co)polymerization strategies of selected oxacyclic monomers to control and provide tailored polymers with desired properties

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