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Showing 1 to 20 of 32 for “"IPN"”.

  1. Improving hydrophilicity of silicone elastomer by IPN formation with hyaluronan

    Koch, Richard L., author, James, Susan P., advisor, Bailey, Travis, committee member, Popat, Ketul C., committee memberColorado State University. Libraries2016

    … to create an interpenetrating polymer network (IPN) materials of poly(dimethyl siloxane) (PDMS) and hyaluronan (HA) with such properties. The results in this work indicate the successful synthesis of these HA-PDMS IPN materials. These elastomeric materials had improved hydrophilicity compared to …

    colostate Repository record

  2. Photo-Curing Behavior and Thermal Properties of Silicone Semi Interpenetrating Polymer Network (Semi-IPN) Organogels

    Kaymakci, OrkunVirginia Tech2013

    Silicone hydrogels are receiving considerable interest due to their important biomedical application areas such as contact lenses and wound dressings. The applications of such materials are usually in the hydrated state, as hydrogels. However, manufacturing and molding processes are mostly carried …

    vt Repository record

  3. Characterization of the Interfacial Fracture of Solvated Semi-Interpenetrating Polymer Network (S-IPN) Silicone Hydrogels with a Cyclo-Olefin Polymer (COP)

    Murray, Katie VirginiaVirginia Tech2011

    … semi-interpenetrating polymer network (S-IPN) silicone hydrogels and a cyclo-olefin (COP) polymer through experimental, analytical, and numerical methods. Interfacial fracture data was collected through the application of the wedge test, a relatively simple test allowing for the …

    vt Repository record

  4. Initial Characterization of Attachment of Infectious Pancreatic Necrosis Virus

    Stewart, Annette Renee

    Infectious Pancreatic Necrosis (IPN) virus is an economically important pathogen of young, hatchery-reared trout. Little information is available on the early steps of IPN virus infection. In this study a method of assaying attachment of IPN viruses to Chinook Salmon Embryo (CHSE) cells was …

    mo-state Repository record

  5. The effects of the instructional partnership program on teacher academic optimism and collaboration in elementary schools in north central Alabama

    Arrington, Denise PrewittUniversity of Alabama Libraries2016

    … of the Instructional Partnership Network (IPN) in Alabama schools, an initiative that was designed to strengthen he instructional leadership within the school. Teachers within sixteen elementary schools within the Tuscaloosa City and the Tuscaloosa County school districts participated in …

    alabama Repository record

  6. Structural And Chemical Organization Of The Rat Interpeduncular Nucleus

    Kawaja, Michael David1989

    … organization of the rat interpeduncular nucleus (IPN) was examined employing wheat germ agglutinin conjugated to horseradish peroxidase (WGA-HRP) and immunohistochemistry at the light and electron microscope level. The topographical and ultrastructural arrangements of habenular efferents …

    uwo Repository record

  7. Development of a Vascularized Carotid Artery Plaque Phantom for the Investigation of Novel Ultrasound-Based Technologies

    Boswell-Patterson, Christie2020

    … and thrombosis. Intraplaque neovascularization (IPN) in advanced lesions in the carotid artery can be visualized using contrast-enhanced ultrasound (CEUS) technology, and its accurate quantification could provide a powerful tool for the detection of vulnerable plaque. This project was undertaken …

    queens Repository record

  8. Caracterização da seca e seus efeitos na produção da cultura do milho para as diferentes regiões do estado de Minas Gerais

    Gois, Givanildo deUniversidade Federal de Viçosa2005

    … Decis (MD) e do Índice de Porcentagem da Normal (IPN) na caracterização da seca nas diferentes regiões de Minas Gerais. Os resultados mostraram que os índices de SPI, MD e IPN apresentaram ao longo dos anos um comportamento similar enquanto que o PDSI se diferenciou dos demais em todas as regiões …

    brazil-ufv Repository record

  9. Collagen and hyaluronic acid interpenetrating polymer networks for tissue engineering

    Brigham, Mark DMassachusetts Institute of Technology2007

    Interpenetrating Polymer Networks (IPNs) represent a strategy for combining the properties of several polymeric materials into a single network. In this thesis, collagen and methacrylated hyaluronic acid are combined in IPNs to produce a range of new biocompatible. The fabrication method allows for …

    mit Repository record

  10. Evaluation of printing orientation, layer thickness and auxilary cross-arch bar in 3-dimensional dental printing on the trueness and precision of full arch polymeric fixed dental prostheses

    Alkandary, Abdulrahman R A A Y2025

    … were used in this study; Lucitone Digital IPN™ and OnX Tough 2. A standardized CAD design generated in Dental CAD 3.1 Rijeka software was exported as an STL file and served as the reference model. A total of 104 specimens were printed with Carbon M2 printer at varying angulations (0°, 40°, …

    bu Repository record

  11. Thermally-responsive interpenetrating polymer network nanoparticles as intelligent therapeutic systems

    Owens, Donald E., 1979-The University of Texas at Austin2006

    … interpenetrating polymer network (IPN) nanoparticles, composed of polyacrylamide, poly(acrylic acid), poly(methacrylic acid), poly(2-ethylacrylic acid), and poly(2-propylacrylic acid), were synthesized using a sequential inverse emulsion polymerization technique. These materials …

    texas Repository record

  12. Modification of the mechanical properties of synethetic hydrogels by various techniques

    Searle, R. J.Polytechnic of North London1988

    … by forming interpenetrating polymer networks (IPNs): and by preparing terpolymers of 2-hydroxyethyl methacrylate/methacrylic acid with hydrophobic monomers. The hydrogels were prepared by redox polymerisation in IMS solution. A method has been developed for producing poly(2-hydroxyethyl …

    london-metro Repository record

  13. Polyacrylamide and its derivatives for oil recovery

    Chen, ZunMissouri University of Science and Technology

    … alcohol) hydrogel with interpenetrating network (IPN) was prepared by in situ free radical solution polymerization/crosslinking of acrylamide and N, N'-methylene-bisacrylamide, as well as chemically crosslinking of PVA with glutaradehyde. Flory-Rehner theory of swelling equilibrium including the …

    must-thes Repository record

  14. Genetics of hearing impairment and peripheral neuropathy in Mali

    Yalcouye, AbdoulayeDepartment of Pathology2023

    … the most common inherited peripheral neuropathy (IPN) with a high clinical and genetic heterogeneity and over 100 genes are related to CMT, mostly in populations of Caucasian ancestry. Yet, despite being described more than 130 years ago, there remains a paucity of information on its global …

    cape-town Repository record

  15. Aspects of Wood Adhesion: Applications of 13C CP/MAS NMR and Fracture Testing

    Schmidt, Robert G.Virginia Tech1998

    … of an interpenetrating polymer network (IPN) morphology existing at both types of wood-resin interphases. The formation of the IPN morphology was strongly influenced by resin molecular weight, cure temperature and the presence of solvent. A new test geometry for the evaluation of the …

    vt Repository record

  16. Cells, surfaces and adhesion

    Fitton, J.H.Aston University1993

    … growth rate.Interpenetrating networkbased gels (IPN) are made porous by elution of dextrin particles of varying size and loading density. These materials provide the basis for synthetic cartilage. Cartilage cells (chondrocytes) plated onto the surface of the porous IPN materials maintain a …

    aston Repository record

  17. The design, synthesis and characterization of chitosan-based interpenetrating polymer networks and thin film systems

    Ryan, Catherine ClaireUniversity College Cork2018

    … to form an interpenetrating polymer network (IPN). In combination with a variety of ordered and disordered polymer and metal nanoparticles, the composites formed were studied with respect to their optical, mechanical and antimicrobial properties. The IPNs made from chitosan and TEOS were …

    cork Repository record

  18. Fabrication and light scattering study of multi-responsive nanostructured hydrogels and water-soluble polymers.

    Xia, XiaohuUniversity of North Texas2003

    … semi-dilute aqueous solutions of the PNIPAM-PAAc IPN microgels exhibit an inverse thermo-reversible gelation. Furthermore, IPN microgels undergo the reversible volume phase transitions in response to both pH and temperature changes associated to PAAc and PNIPAM, respectively. Three applications …

    unt Repository record

  19. Metal-polymer nanoparticulate systems for externally-controlled delivery

    Gran, Martin LukeUniversity of Texas at Austin2010

    … of interpenetrating polymer networks (IPN) composed of poly(acrylamide) (PAAm) and poly(acrylic acid) (PAA) were synthesized using a water-in-oil emulsion polymerization. Temperature-responsive equilibrium swelling behavior of nanoparticles with varying crosslinking densities was …

    texas Repository record

  20. Incorporation of lignin copolymers into polyurethane materials

    Kelley, Stephen S.Virginia Polytechnic Institute and State University1987

    … (PMA) interpenetrating polymer networks (IPNs). These IPNs varied in their LPU/PMMA composition and the presence of crosslinking. Dynamic mechanical and thermal analysis showed two phases in all of the IPNs. Mechanical properties were dependent on the IPN composition and phase …

    vt Repository record

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