Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 23 for “"Functional polymer"”.
-
Functional polymer layers with protected amines
… of such nano-objects should be realized through functional thin polymer films which provide binding groups. Thus, the main aim of this work was the development of polymeric materials for thin functional films which permit to deposit on different substrates a wide variation of functional elements …
-
Core-shell printing of functional polymer filaments
… fabrication technique capable of producing functional microstructures with a variety of materials, sizes, and morphologies. In essence, ink materials are extruded continuously from a printhead while the printhead is translated on a 3D positioning stage at a constant rate of travel. In the …
-
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, …
-
Functional Polymer Composites for Clinical and Engineering Challenges
… presents the design and development of novel polymers engineered to outperform widely used commercial materials across a range of demanding applications. The central theme of this work is the deliberate tuning of polymer structure, identity, and architecture to achieve targeted functional and …
-
Biomasses for the obtainment of new functional polymer materials
… of work dedicated to the development of new polymeric systems based on the use of raw materials derived from biomasses. Biomasses are a very versatile renewable energy source with low environmental impact and are less expensive than the resources deriving from petroleum. Furthermore, the use …
-
Functional Polymer Materials: From Iptycenes to Ring-Opening Polymerizations
In Chapter 1, we incorporate functional groups in triptycene-containing poly aryl ethers to serve a variety of applications. Amine-functionalized polymers are used in graphene oxide composite membranes towards aqueous filtration. Guanidinium-functionalized polymers are explored for impedance-based …
-
Bioengineering functional polymer systems for glycan-based targeting and drug release
… effects. Existing approaches include liposomes, polymeric miscelle, protein-based nanoparticles, antibody-drug conjugates, dendrimers, and polymer drug conjugates. These systems provide the framework for the addition of additional functionalities, including modalities enabling targeting or …
-
Kinetics of Polymer Interfacial Reactions
The reaction of a functional polymer at an interface has very broad applications in industry. Surface-bound polymers have been employed to control surface properties ranging from wettability and adhesion to friction and biocompatibility. More recently, the applications of functional polymer films …
-
Novel Fluorous Hybrid Surface Modification Characterized by Wetting Dynamics, Morphology and Nanomechanics
<p>The surface response of a polymer substrate to external stimuli such as initial wetting is controlled by the outermost molecular layer. Thus, changes on the nanoscale may be engaged to control macroscale wetting behavior. Our work has predominantly focused on surface modification of conventional …
-
ELECTRODEPOSITION OF POLYMER NETWORKS (EPON) AS CONFORMAL ULTRATHIN COATINGS
Functional coatings and interphases are omnipresent in modern technology and often determine the performance and lifetime of devices. For example, in solid-state energy storage devices, electrolyte-type polymeric interfaces between battery components such as the active electrode material and solid …
-
Structure and Morphology of Photoreactive Monomer–Nanoparticle Mixtures Under Patterned Irradiation
… during Light–Induced Self–Writing (LISW) in polymer composite materials, and if yes, how? LISW is based on the ability of light to undergo divergence–free propagation in photoreactive media due to photopolymerization–induced rise in refractive index of the medium. Notably, LISW in polymeric …
-
Enabling integration of vapor-deposited polymer thin films
… one-step process for synthesizing conformal and functional polymer thin films on a variety of substrates. This thesis emphasizes the development of tools to further enable the use of iCVD for industrial applications. The ability to pattern polymer thin films is a prerequisite for device …
-
Amine functionalization by initiated chemical vapor deposition (iCVD) for interfacial adhesion and film cohesion
Amine functional polymer thin films provide a versatile platform for subsequent functionalization because of their diverse reactivity. Initiated chemical vapor deposition (iCVD) is a polymer chemical vapor deposition technique that utilizes the delivery of vaporphase monomers to form chemically …
-
Synthesis and characterization of aminated perfluoro polymer electrolytes
Polymer electrolytes have been developed for use in anion exchange membrane fuel cells for years. However, due to the highly corrosive environment within these fuel cells, poor chemical stability of the polymers and low ion conductivity have led to high development costs and thus prevention from …
-
Electrospun polymer fibers for triboelectric energy harvesting applications in smart textiles
… these issues by developing nanostructured functional polymer coatings, namely Nylon-11, polymethyl methacrylate (PMMA) and polyvinylidene difluoride (PVDF), using electrospinning, which is a widely used, scalable fiber-production method. These materials are selected because they …
-
USE OF HYPROMELLOSE AND HYDROXYPROPYL CELLULOSE TO DEVELOP AN AGE APPROPRIATE PLATFORM TECHNOLOGY FOR THE ADMINISTRATION OF MEDICINES TO CHILDREN
… Spray-drying was investigated to co-process a functional polymer, hypromellose, with a model drug substance, paracetamol, to enhance the functionality of the polymer and to taste mask the paracetamol. Though hypromellose was successfully spray-dried it was not possible to spray-dry hypromellose …
-
EVALUATION OF HYDROLYTIC ENZYMES IN THE DESIGN OF ORAL DRUG DELIVERY SYSTEMS
… of oral modified release dosage forms having as functional polymer hydroxypropyl methylcellulose (HPMC), a hydrophilic cellulose derivative which is substrate of the enzyme itself. Previous examples of the use of enzymes in drug delivery were investigated through a literature survey, which …
-
Study on corrosion protection of organic coatings using electrochemical techniques: developing electrochemical noise method, effective of surface preparation and inhomogeneity of organic coatings
… application, curing temperature, partially non-functional resin, pigmentation and solvent. Experimental results showed that the solvent degree to which can escape, the non-functional polymer parts and inherently hydrophilic functional groups of organic coatings are the main parameters causing …
-
Polímeros funcionales: aplicaciones como sensores y materiales de altas prestaciones
El trabajo que conforma Tesis Doctoral titulada Polímeros funcionales. Aplicaciones como sensores y materiales de altas prestaciones se encuadra en el ámbito científico y tecnológico de los materiales avanzados para aplicaciones específicas. En este marco se han diseñado materiales funcionales con …
-
Synthesis of linear copolymers and of polymer brushes substituted with spiropyran groups : a step towards light driven molecular walkers
… and properties of different well-defined complex polymer structures based on functional acrylates and methacrylates by means of modern controlled polymerization procedures such as atom transfer radical polymerization (ATRP) and reversible addition-fragmentation chain transfer (RAFT) …
Page 1 of 2