http://polysurf.mse.gatech.edu/wp-content/uploads/2010/08/PPSBrushes2004.pdf?origin=publication_detail

Adaptive and responsive surfaces through controlled reorganization of interfacial polymer layers

To provide an antireflection film which is easily and inexpensively producible and which has an antireflection property, a scratch resistance and a stain resistance in a sufficient level, and a polarizing plate and a liquid crystal display device utilizing the antireflection film of such excellent ability, the antireflection film includs a transparent support and a low-refractive index layer having a lower refractive index than the transparent support, wherein the low-refractive index layer is an outermost layer, and the low-refractive index layer contains a hollow silica particle and a compound that reduces a surface free energy of the outermost layer.

Antireflection film, polarizing plate, method for producing them, liquid crystal display element, liquid crystal display device, and image display device

Three design prin- ciples are presented that allow for the molecular design of functional polymer surfaces: surface segrega- tion, surface structure, and surface reorganization. These design prin- ciples are illustrated by a descrip- tion of the behavior of model end- functional polymers that accu- rately reflect the general behavior of essentially all possible linear functional polymer architectures. Several applications of the design principles are described to show how they may be used to provide molecular engineering solutions for problems of practical interest. The applications include the opti- mization of functional polymer ar- chitectures for producing adhesive and release surfaces, the suppres- sion of dewetting by the use of functional additives to lower the surface tension of a coating, and the creation of smart polymer sur- faces with selective adhesion prop-

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Molecular design of functional polymer surfaces

The present invention is a, solid block copolymer comprising at least two polymer end blocks A and at least one polymer interior block B wherein each A block is a polymer block resistant to sulfonation and each B block is a polymer block susceptible to sulfonation, and wherein said A and B blocks do not contain any significant levels of olefinic unsaturation. Preferably, each A block comprising one or more segments selected from polymerized (i) para-substituted styrene monomers, (ii) ethylene, (iii) alpha olefins of 3 to 18 carbon atoms; (iv) hydrogenated 1,3-cyclodiene monomers, (v) hydrogenated monomers of conjugated dienes having a vinyl content less than 35 mol percent prior to hydrogenation, (vi) acrylic esters, (vii) methacrylic esters, and (viii) mixtures thereof; and each B block comprising segments of one or more polymerized vinyl aromatic monomers selected from (i) unsubstituted styrene monomers, (ii) ortho-substituted styrene monomers, (iii) meta-substituted styrene monomers, (iv) alpha-methylstyrene, (v) 1,1-diphenylethylene, (vi) 1,2-diphenylethylene and (vii) mixtures thereof. Also claimed are processes for making such block copolymers, and the various end uses and applications for such block copolymers.

Sulfonated block copolymers, method for making same, and various uses for such block copolymers

Precise synthesis and surface structures of architectural per- and semifluorinated polymers with well-defined structures

Angle-dependent X-ray photoelectron spectroscopy (ADXPS) is used to measure end group concentration depth profiles for blends of surface active ω-fluorosilane polystyrene with nonfunctional polystyrene. The fluorine signal is in all cases enhanced at the surface, indicating surface segregation of the lower surface tension fluorosilane end groups. End group segregation is enhanced by an increase in the concentration of ω-fluorosilane polystyrene, an increase in the nonfunctional polystyrene molecular weight, or a decrease in the molecular weight of the ω-fluorosilane polystyrene. A self-consistent mean-field lattice theory is developed to model the surface structure and properties of blends containing end-functional polymers. Lattice model calculations provide estimates of concentration depth profiles as a function of the blend composition, the normalized chain lengths of the blend constituents, and the surface and bulk interaction parameters, χs and χb, respectively. Two end-functional polystyrene archite...

Measurement and Modeling of End Group Concentration Depth Profiles for ω-Fluorosilane Polystyrene and Its Blends

Styrene or other anionically polymerizable monomer is anionically homopolymerized in a dispersion using a non-solvent, for example, hexane, in three or more successive stages to obtain spherical microparticles, for example, from 2 to 5 microns, with a narrow size distribution.

Multi-stage anionic dispersion homopolymerization to form micro-particles with narrow size distribution

The viscosity of the dispersing medium, such as cyclohexane, in the anionic dispersion polymerization of monomers, such as styrene, is increased by adding a higher viscosity inert miscible liquid, such as hexadecane, or a soluble inert solid, or by using a liquid having a viscosity of greater than about 2 cp. The increased viscosity assists in the formation of dispersed polymer particles having a narrower particle size distribution than those produced in the lower viscosity dispersing medium.

Anionic polymerization in high viscosity dispersing medium to form microparticles with narrow size distribution

High molecular weight linear block copolymers containing 5 or more alternating blocks of (A) polymerized styrene or alkyl substituted styrene units, and (B) polymerized conjugated diene units, terminated by (A) units, are prepared by anionic dispersion polymerization to give clear polymers having excellent physical properties.

High impact, highly transparent linear styrene-diene block copolymers with five or more blocks and their preparations by anionic dispersion polymerization

Supported olefin, e.g., alpha-olefin, polymerization catalyst compositions, such as Ziegler-Natta catalysts, are modified by using porous, polymer particles having an average pore diameter of at least about 10 Å as the catalyst support. The resulting catalyst composition is more active than refractory oxide-supported catalysts and it is not susceptible to deactivation by catalyst poisons, such as oxygen or water. Additionally, the polymer particles need not be calcined prior to the catalyst synthesis.

Binnur Zeynep Gunesin

Papers

Measurement and Modeling of End Group Concentration Depth Profiles for ω-Fluorosilane Polystyrene and Its Blends

Multi-stage anionic dispersion homopolymerization to form micro-particles with narrow size distribution

Anionic polymerization in high viscosity dispersing medium to form microparticles with narrow size distribution

High impact, highly transparent linear styrene-diene block copolymers with five or more blocks and their preparations by anionic dispersion polymerization

Particulate polymer-supported olefin polymerization catalyst