Studies on the preparation and characterisation of monodisperse polystyrene laticee

Goodwin, James W.; Hearn, J.; Ho, CC; Ottewill, R. H.

doi:10.1007/bf01554752

Cited by 647 publications

(360 citation statements)

References 17 publications

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“…We focus on spherical colloidal particles, typically prepared in the size range from 100 nm to several µm, made from common materials without any inherent special properties (mostly polystyrene, poly(methylmethacrylate), and silica), 27 rather than assemblies of functional nanoparticles. Such colloids can be synthesized with high precision and uniformity using emulsion polymerization, 28,29 dispersion polymerization, 30,31 and Stöber processes. 32,33 The composition can later be tailored as desired, as discussed below and described in Figure 2.…”

Section: Fabrication Of Colloidal Assembliesmentioning

confidence: 99%

A colloidoscope of colloid-based porous materials and their uses

et al. 2016

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Nature evolved a variety of hierarchical structures that produce sophisticated functions. Inspired by these natural materials, colloidal self-assembly provides a convenient way to produce structures from simple building blocks with a variety of complex functions beyond those found in nature. In particular, colloid-based porous materials (CBPM) can be made from a wide variety of materials. The internal structure of CBPM also has several key attributes, namely porosity on a sub-micrometer length scale, interconnectivity of these pores, and a controllable degree of order. The combination of structure and composition allow CBPM to attain properties important for modern applications such as photonic inks, colorimetric sensors, self-cleaning surfaces, water purification systems, or batteries. This review summarizes recent developments in the field of CBPM, including principles for their design, fabrication, and applications, with a particular focus on structural features and materials' properties that enable these applications. We begin with a short introduction to the wide variety of patterns that can be generated by colloidal self-assembly and templating processes. We then discuss different applications of such structures, focusing on optics, wetting, sensing, catalysis, and electrodes. Different fields of applications require different properties, yet the modularity of the assembly process of CBPM provides a high degree of tunability and tailorability in composition and structure. We examine the significance of properties such as structure, composition, and degree of order on the materials' functions and use, as well as trends in and future directions for the development of CBPM.

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Section: Fabrication Of Colloidal Assembliesmentioning

confidence: 99%

A colloidoscope of colloid-based porous materials and their uses

et al. 2016

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“…In contrast to miniemulsion polymerization, emulsion polymerization processes entirely rely on diffusion. Schematic illustrations of the mechanisms for the classical emulsion polymerization process [28] as well as the surfactant-free emulsion polymerization process introduced by Goodwin and Ottewill [29] and employed in this thesis are shown in Figure 3.1.3. In both cases, a monomer with a low but finite solubility in the continuous water phase is stirred to created macroscopic droplets.…”

Section: Emulsion Polymerizationmentioning

confidence: 99%

“…However, especially surfactant-free emulsion polymerization is priced for the high monodispersity [29,183] of the resulting latex particles. These find applications where high precision colloidal crystals are needed, most prominently in the fields of photonics, [184][185] phononics, [186][187] and lithography.…”

Section: Incorporation Of Metal Complexes By Emulsion Polymerizationmentioning

confidence: 99%

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Surface Patterning with Colloidal Monolayers

Vogel

2012

Springer Theses

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This thesis focuses on the controlled assembly of monodisperse polymer colloids into ordered two-dimensional arrangements. These assemblies, commonly referred to as colloidal monolayers, are subsequently used as masks for the generation of arrays of complex metal nanostructures on solid substrates.The motivation of the research presented here is twofold. First, monolayer crystallization methods were developed to simplify the assembly of colloids and to produce more complex arrangements of colloids in a precise way. Second, various approaches to colloidal lithography are designed with the aim to include novel features or functions to arrays of metal nanostructures.The air/water interface was exploited for the crystallization of colloidal monolayer architectures as it combines a two-dimensional confinement with a high lateral mobility of the colloids that is beneficial for the creation of high long range order. A direct assembly of colloids is presented that provides a cheap, fast and conceptually simple methodology for the preparation of ordered colloidal monolayers. The produced two-dimensional crystals can be transformed into nonclose-packed architectures by a plasma-induced size reduction step, thus providing valuable masks for more sophisticated lithographic processes. Finally, the controlled co-assembly of binary colloidal crystals with defined stoichiometries on a Langmuir trough is introduced and characterized with respect to accessible configurations and size ratios.Several approaches to lithography are presented that aim at introducing different features to colloidal lithography. First, using metal-complex containing latex particles, the synthesis of which is described as well, symmetric arrays of metal nanoparticles can be created by controlled combustion of the organic material of the colloids. The process does not feature an inherent limit in nanoparticle size and is able to produce complex materials as will be demonstrated for FePt alloy particles. Precise control over both size and spacing of the particle array is presented.Second, two lithographic processes are introduced to create sophisticated nanoparticle dimer units consisting of two crescent shaped nanostructures in close proximity; essentially by using a single colloid as mask to generate two structures simultaneously. Strong coupling processes of the parental plasmon resonances of the two objects are observed that are accompanied by high near-field enhancements. A plasmon hybridization model is elaborated to explain all polarization dependent shifts of the resonance positions. Last, a technique to produce laterally patterned, ultra-flat substrates without surface topographies by embedding gold nanoparticles in a silicon dioxide matrix is applied to construct robust and re-usable sensing architectures and to introduce an approach for the nanoscale patterning of solid supported lipid bilayer membranes.

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“…[119][120][121][122] A general recipe for the used particles is given by the following: [118] "The polymerization reactions were carried out either in a 300 ml reactor with a thermostat jacket or a 500 ml three necked flask. At first water was heated to the reaction temperature.…”

Section: Materials Homogeneous Polymer Colloidsmentioning

confidence: 99%

High Frequency Acoustics in Colloid-Based Meso- and Nanostructures by Spontaneous Brillouin Light Scattering

Still

2010

Springer Theses

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Studies on the preparation and characterisation of monodisperse polystyrene laticee

Cited by 647 publications

References 17 publications

A colloidoscope of colloid-based porous materials and their uses

A colloidoscope of colloid-based porous materials and their uses

Surface Patterning with Colloidal Monolayers

High Frequency Acoustics in Colloid-Based Meso- and Nanostructures by Spontaneous Brillouin Light Scattering

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