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Showing 1 to 20 of 158 for “"polymer films"”.
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Nanostructure formation in thin polymer films
… to study the behavior of ultra-thin polystyrene films on topographically structured substrates. The film thickness of some nanometers is comparable to the radius of gyration of the polymers. The substrate corrugation causes a regular variation of the film thickness. We start with a homogeneous …
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Biomedical applications of nanostructured polymer films
Functional polymeric thin films are often stratified with nanometer level structure and distinct purposes for each layer. These nanostructured polymeric materials are useful in a wide variety of applications including drug delivery, tissue engineering, controlling condensation and polymeric …
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Triplet exciton dynamics in conjugated polymer films
… of the excited state dynamics in conjugated polymers is necessary for efficient use of these novel materials. Triplet excitons are believed to play an important role in conjugated polymer-based device operation. Triplet excitons are also believed to play a primary role in photo-oxidative …
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Tuning Melt/Brush Interactions for Functional Polymer Films
Polymer films are employed in a variety of industries that include electronic materials, anti-fouling coatings, barrier coatings, and adhesives. In many applications, the functionality of these films is controlled by surface and interfacial properties. Polymer brushes can modify the chemistry, …
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Buckling Patterns and Mechanics of Thin Interfacial Polymer Films
… patterns. Here we explore how thin interfacial films and the buckling modes they present couple with evolving macroscopic forces and how multi-scale features of the systems give rise to patterns. </p><p>In the indentation of a circular film floating on a liquid bath three buckling modes arise: …
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Real time impulsive stimulated thermal scattering of thin polymer films
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Chemistry and Dept. of Physics, 1992.
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Enhanced Structure and Crystallinity of Semiconducting Polymer Films Through Electrospray Deposition
… that is cost effective and scalable. Conjugated polymers are among the solution processable materials of most interest, poly(3-hexylthiophene)(P3HT) standing out as one of the most extensively studied. Applications of P3HT as a p-type semiconductor have been demonstrated in devices like organic …
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Oxygen as a Mass Transport Probe in Polymer Films (Chronocoulometry, Hydrodynamic)
… through several ferricyanide-loaded PVP films on a rotating disk electrode allows evaluation of permeation coefficients. (kD(,S)). A background-subtraction chronocoulometric technique allows the examination of diffusion behavior within such films primarily in a chosen oxidation state. For …
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Biomimetic antimicrobial polymer films and their biomedical and food-packaging applications
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2026-05-01
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Characterization and technical studies of semiconductor nanoclusters synthesized within polymer films
… nanoclusters were synthesized within diblock copolymer films containing carboxylic acid units on one of the blocks. Diblock copolymer films microphase separate during film casting, and yield many different morphologies (spherical lamellar/ cylindrical ) depending on the ratio of the lengths of …
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Characterization and patterned polymer films from a novel self-assembly process
… molecular-level manipulation of ionic polymer have been utilized to fabricate ultrathin multilayer films (SAMp). In this process, monolayers of polycations and polyanions are sequentially adsorbed onto a substrate surface by alternately dipping the substrate into aqueous solutions of …
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Characterization of Diffusion Processes in Thin Polymer Films via Optical Waveguide Techniques
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1993.
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Ultrafast Temperature Jump Study of Energy Transfer in Dye-Doped Polymer Films
Ultrafast laser spectroscopy of condensed matter samples containing dyes functioning as molecular optical heaters and optical thermometers is developed. A known amount of heat is deposited in a molecular solid sample and the temperature is accurately measured. This technique, termed ultrafast …
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Light-Induced Electron Transfer and Energy Transfer in Thin Polymer Films and Zeolites
… to drive other useful reactions. Two media, thin polymer films and zeolites, which showed promise in maintaining charge separation, were used in this study.
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Adhesion/Diffusion Barrier Layers for Copper Integration: Carbon-Silicon Polymer Films and Tantalum Substrates
… of this research is to develop novel organic polymers as Cu/low-k interfacial layers and to investigate popular barrier candidates, such as clean and modified tantalum (Ta) substrates. Carbon-silicon (C-Si) polymeric films have been formed by electron beam bombardment or ultraviolet (UV) …
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Controlled Release of Antioxidants via Biodegradable Polymer Films into Milk and Dry Milk Products
Residual value is defined as the price for which a used piece of equipment can be sold in the market at a particular time. It is an important element of the owning costs of equipment and needs to be estimated by equipment managers for making investment decisions. The purpose of this study is to …
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FTIR-ATR Characterization of Hydrogel, Polymer Films, Protein Immobilization and Benzotriazole Adsorption on Copper Surface
Plasma polymerization techniques were used to synthesize and deposit hydrogel on silicon (Si) substrate. Hydrogel is a network of polymer chains that are water-insoluble and has a high degree of flexibility. The various fields of applications of hydrogel include drug release, biosensors and tissue …
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Quantitative viscoelastic spectroscopy of polymer films using Lorentz force actuated contact resonance atomic force microscopy
Embargo set by: Seth Robbins for item 50524 Lift date: 2016-09-16T17:13:01Z Reason: Author requested closed access (OA after 2yrs) in Vireo ETD system
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Parylene-based chemical vapor deposition of electroluminescent polymer films used in polymer light emitting diodes
… properties of the conjugated electroluminescent polymer poly(p-phenylene vinylene) (PPV) prepared by parylene-based chemical vapor deposition (CVD) are explored in this thesis. A reactor for CVD of PPV is designed and constructed, and both a,a'-dibromo p-xylene and a,a.'-dichloro p-xylene are …
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