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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.

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Showing 1 to 20 of 74 for “"Diisocyanate"”.

  1. Characterization of Methylene Diphenyl Diisocyanate Protein Conjugates

    Mhike, Morgen

    portland-state Repository record

  2. Degradation and stabilisation of diisocyanate cured polybutadiene

    Wang, TingAston University1992

    Hydroxyl terminated polybutadiene (HTPB) has been used as a rocket propellant binder which is required to be stored for at least twenty years. It is found that the excellent stress-strain characteristics of this propellant can be totally lost, during this long storage, due to the deterioration of …

    aston Repository record

  3. Evaluation and resolution of two sampling methods for airborne aromatic diisocyanate monomers

    Schaeffer, Joshua W., author, Brazile, William, advisor, Reynolds, Stephen, committee member, Sandfort, Delvin, committee member, Hanneman, William, committee member, Morley, Paul, committee memberColorado State University. Libraries2013

    To view the abstract, please see the full text of the document.

    colostate Repository record

  4. Genetic Effect of MBL2 Polymorphisms in Patients with Diisocyanate-induced Occupational Asthma

    배, 수진2013

    BACKGROUND AND OBJECTIVE: Diisocyanate (DI) is the most common cause of occupational asthma (OA) in Korea. Although various mechanisms were involved in the pathogenesis of DI-OA, oxidative stress has been suggested as a potential mechanism, which leads to the formation of a complement-activating …

    ajou Repository record

  5. Production, Characterization and Possible Applications of Monoclonal Antibodies Generated against Toluene Diisocyanate-conjugated Proteins

    Ruwona, Tinashe Blessing

    portland-state Repository record

  6. Serum Specific IgG to Cytokeratin : A Useful Serologic Marker for Toluene Diisocyanate-Induced Asthma

    예, 영민2011

    … for the diagnosis of patients with toluene diisocyanate (TDI)-induced asthma. We evaluate the clinical significance of specific IgG to three major epithelial cytokeratins (CK)-CK8, CK18, and CK19-in 66 patients with TDI-induced asthma (group Ⅰ), compared with three control groups: 169 …

    ajou Repository record

  7. Structural Determination of Copolymers from the Cross-catalyzed Reactions of Phenol-formaldehyde and Polymeric Methylenediphenyl Diisocyanate

    Haupt, Robert A.Virginia Tech2013

    This work reports the elucidation of the structure of a copolymer generated by the cross- catalyzed reactions of PF and pMDI prepolymers. The electronic behavior of phenolic monomers as perturbed by alkali metal hydroxides in an aqueous environment was studied with 1H and 13C NMR. Changes in …

    vt Repository record

  8. The Prevalence and Clinical Significance of Newly Sensitization to Inhalant Allergens in Toluene Diisocyanate-induced Asthmatic Patients

    박, 한정2011

    … It has been reported that half of toluene diisocyanate (TDI)-induced asthma patients had persistent asthmatic symptoms even after complete avoidance. We hypothesized that new sensitization to common inhalant allergens may contribute to persistent and aggravation of asthmatic symptoms. …

    ajou Repository record

  9. Clinical significance of specific IgG and IgE antibodies to toluene diisocyanate(TDI)-human serum(HSA) conjugate in TDI-induced occupational asthma

    김, 희연2011

    Master

    ajou Repository record

  10. Composites thermoplastiques du LLDPE ou LLDPE/PP et Switch Grass : effets du polybutadiène diisocyanate et du peroxyde dicumyle sur les propriétés finales

    Zysk, Jaroslaw GrzegorzUniversité du Québec à Trois-Rivières2004

    uqtr Repository record

  11. The preparation of a polyurethane elastomer and evaluation of the mechanical properties

    Lo, Choung-linVirginia Polytechnic Institute1960

    … elastomer prepared from 33’ Bitolyene 44’ diisocyanate and the polyester of adipic acid and ethylene glycol. The investigation consisted of the preparation of polyurethane elastomer, solvent absorption and swelling tests, tensile properties test and hardness test. Three groups of polymer …

    vt Repository record

  12. Synthesis and characterization of hyperbranched poly(urea-urethane)s

    Abd Elrehim, Mona Hassan MohammedTechnische Universität Dresden

    … available monomers which are 2,4-toluylene diisocyanate (TDI) as aromatic diisocyanate and isophorone diisocyanate (IPDI) and 2(3-isocyanatopropyl) cyclohexylisocyanate (IPCI) as aliphatic diisocyanates. Those proposed diisocyanates were reacted with diethanolamine (DEA) or …

    qucosa-diss

  13. Structure–Property Relationships Of: 1) Novel Polyurethane and Polyurea Segmented Copolymers and 2) The Influence of Selected Solution Casting Variables on the Solid State Structure of Synthetic Polypeptide Films Based on Glutamate Chemistry

    Klinedinst, Derek BryanVirginia Tech2011

    … Polyurethanes in which a single asymmetric diisocyanate comprising the whole of the hard segment were found to display poor microphase separation. Conversely, polyurethanes in which a single symmetric diisocyanate composed the hard segment were found to display good microphase separation. …

    vt Repository record

  14. Structural characterization of polyurethane foam and implications of aging

    Kodippili, Gayani Chandima

    … decomposition of uretoneimine linkages in the diisocyanate starting material by monitoring the change in intensities of diisocyanate, carbodiimide, and uretoneimine bands in the IR spectra. Thermal analysis (DSC and TMA) were consistent with IR finding, where endothermic and exothermic events …

    unlv Repository record

  15. Capillary Zone Electrophoresis Analysis of Isocyanates in Spray-Painting Operations

    Liu, PinSouthwest Texas State University1994

    Various diisocyanate monomers and polyisocyanate oligomers exist in spray painting formulations and are known to be harmful to workers who are exposed to a spray-painting environment. Several methods were used for the sampling and analysis of airborne 1,6- hexamethylene diisocyanate (HDI) monomer …

    texas-state Repository record

  16. Physicomechanical Response of Ionic Polyurethanes on Endothelial Cells

    Ansari, Farheen2018

    … properties. PUs are designed with two different diisocyanates, hexamethylene diisocyanate (HDI), which has a linear structure and isophorone diisocyanate (IPDI), with a non-linear structure. By utilizing the inter-segmental interaction along with ionic interactions, the relaxation of PU chains …

    buffalo Repository record

  17. New Sampling and Analysis Method for Isocyanates in Spray-Painting Operations

    Yin, Jian1998

    … paints is based on 1,6-hexamethylene diisocyanate (HDI) and contains the isocyanurate or the biuret of HDI. Exposure to isocyanate vapor and aerosol in spray paintings is known to cause a range of disorders in humans. The National Institute for Occupational Safety and Health (NIOSH) …

    tdl Repository record

  18. Structure-property relationships in polyurethanes from lignin

    Saraf, Vasudev P.Virginia Polytechnic Institute and State University1983

    … solution casting from hydroxypropyl lignins and diisocyanates. Kraft and steam explosion lignin, hexamethylene diisocyanate (HDI) and tolylene diisocyanate (TDI), were used for the study. It was found necessary to use stoichiometric excess amounts of diisocyanates in the synthesis of the …

    vt Repository record

  19. Biocompatible ultrathin coatings from isocyanate terminated star PEG prepolymers

    Ameringer, ThomasPublikationsserver der RWTH Aachen University2006

    … star polymers were treated with isophorone diisocyanate, acrylic acid chloride or divinyl sulfone respectively. Important therby was the surpression of the unwanted chain extension and colouring of the products. These polymers were then coated onto amine terminated surfaces. It turned out to …

    aachen Repository record

  20. Determining soft segment structure-property effects in the enhancement of segmented polyurethane performance

    Waletzko, Ryan ScottMassachusetts Institute of Technology2009

    … domains that were connected by hexamethylene diisocyanate-butanediol (HDI-BDO) hard segments. Soft segment crystallinity studies revealed the need to optimize the extent of continuous soft domain ordering. Highly crystalline PEO soft segments, while they display good microphase segregation …

    mit Repository record

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