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  • 1
    Electronic Resource
    Electronic Resource
    Polymerization of 2,6-Dimethylphenol with Mixed-Ligand Copper Complexes (1994)
    s.l. : American Chemical Society
    Industrial & engineering chemistry research 33 (1994), S. 1107-1112 
    Details
    ISSN: 1520-5045
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ie00029a006
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  • 2
    Electronic Resource
    Electronic Resource
    Methylation of phenol to 2,6-dimethylphenol on a manganese oxide catalyst (1993)
    s.l. : American Chemical Society
    Industrial & engineering chemistry research 32 (1993), S. 1007-1011 
    Details
    ISSN: 1520-5045
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ie00018a002
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  • 3
    Electronic Resource
    Electronic Resource
    Chemical indicators as mixing probes. A possible way to measure micromixing simply (1986)
    s.l. : American Chemical Society
    Industrial and engineering chemistry 25 (1986), S. 719-723 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/i100024a040
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  • 4
    Electronic Resource
    Electronic Resource
    Catalytic decomposition of nitric oxide on sodium ferrite (1982)
    s.l. : American Chemical Society
    Industrial and engineering chemistry 21 (1982), S. 405-408 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/i300007a010
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  • 5
    Electronic Resource
    Electronic Resource
    Effect of supports in hydrogen sulfide oxidation on vanadium−based catalysts (1999)
    Springer
    Catalysis letters 57 (1999), S. 77-80 
    Details
    ISSN: 1572-879X
    Keywords: hydrogen sulfide oxidation ; sulfur selectivity and yield ; supported vanadium oxide catalysts ; V2O5−TiO2 interaction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Selective oxidation of hydrogen sulfide to sulfur was carried out over V2O5 and V−Sb−O mixed−oxide catalysts supported on TiO2, ZrO2 and $$\gamma$$ −Al2O3. TiO2−supported catalysts exhibited the highest sulfur yield and the highest areal rate. Catalyst reducibility was studied by temperature−programmed reduction.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1019031128700
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  • 6
    Electronic Resource
    Electronic Resource
    A Study on the Thermal Behaviour of Solder Glass (1999)
    Springer
    Journal of thermal analysis and calorimetry 56 (1999), S. 131-136 
    Details
    ISSN: 1572-8943
    Keywords: activation energy ; devitrification mechanism ; FEG-2002 ; Mansol #40 ; solder glasses ; thermal properties
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Vitreous solder glasses, such as Mansol #40 and FEG-2002, are commercialized solder glasses, which are compression sealing glasses that can be used to solder materials with expansions between 55-68⊙10-7°C-1, such as Al2O3. In order to understand and tailor the thermal behaviour of solder glasses, cylindrical-like glasses were first carefully ground with a stainless steel mortar and pestle. Initially, no exothermic or endothermic data were obtained from the DTA/DSC curves except those relating to melting. However, exothermic peaks appeared after the glass samples were re-melted. In this work, kinetic parameters such as the activation energy, and the morphology of the devitrification mechanisms for two kinds of solder glasses were also investigated, using non-isothermal DTA techniques. The activation energies ranged from 220 to 235 kJ mol-1 and the devitrification mechanism parameters were close to 1. This indicates that the devitrification mechanisms of the two kinds of solder glasses involve surface nuclei.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1010103912714
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  • 7
    Electronic Resource
    Electronic Resource
    Oxidative polymerization of 2,6-dimethylphenol catalyzed by copper-mixed amine system (1995)
    Springer
    Polymer bulletin 34 (1995), S. 419-424 
    Details
    ISSN: 1436-2449
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary Copper-mixed n-butylamine /dibutylamine complex was used as the catalyst for 2,6-dimethylphenol polymerization. The effects of several variables such as copper salts, additives, reaction temperature and pressure, and amine/copper ratio on the catalyst performance were studied. The catalyst activity was found to be highly dependent on the specific combination of copper salts and amines, and copper iodide-amine complex showed an unusual long induction period. Polymer molecular weight was sensitive to the addition of methanol and surfactant, reaction temperature and amine/copper ratio but insensitive to the pressure. Initial polymerization rate was strongly affected by reaction pressure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00306235
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  • 8
    Electronic Resource
    Electronic Resource
    The Thermal Properties and Firing Characteristics of Zr/KClO4 Priming Compositions Containing Graphite, Fe2O3 and Al2O3 additives (1999)
    Springer
    Journal of thermal analysis and calorimetry 56 (1999), S. 223-226 
    Details
    ISSN: 1572-8943
    Keywords: Fe2O3 and Al2O3 additives ; firing characteristics ; thermal properties ; Zr/KClO4 priming compositions containing graphite
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Thermal decomposition of Zr/KClO4 priming compositions containing different concentration of additives, such as graphite, Fe2O3 and Al2O3 have been studied by DSC/TG techniques. The firing characteristics of these primer mixtures have also been examined by Bruceton test and by adiabatic calorimeter. The results of these experiments suggest that strong interaction has been occurred between KClO4 and Fe2O3 in the solid state.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1010149222709
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  • 9
    Electronic Resource
    Electronic Resource
    2,6-Dimethylphenol polymerization with cuprous chloride and n-butylamine catalyst system: Effect of Nal addition (1996)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part A: Polymer Chemistry 34 (1996), S. 3213-3219 
    Details
    ISSN: 0887-624X
    Keywords: poly(2,6-dimethylphenylene oxide) ; 2,6-dimethylphenol polymerization ; CuCl/n-butylamine catalyst ; sodium iodide ; Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 2,6-Dimethylphenol polymerization with catalyst systems based on CuCl/n-butylamine were studied under 10 kg/cm2 pure oxygen pressure. By addition of sodium iodide, the catalyst performance was dramatically improved and an unusual long induction period was observed. Both the polymer intrinsic viscosity obtained and the induction period increased significantly with the increase of NaI concentration. However, the induction period decreased rapidly with the increase of n-butylamine concentration. UV-VIS absorption spectra showed that the CuCl/n-butylamine complex was converted to Cul/n-butylamine complex after the addition of NaI. The hydration rate of copper halide/n-butylamine complex decreased significantly with the increase of NaI and n-butylamine concentrations. Therefore the increase of polymer intrinsic viscosity and induction period by NaI addition suggest that the polymerization catalyst became more hydrolytically stable and less active at the higher NaI concentration. © 1996 John Wiley & Sons, Inc.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    In situ preparation of N,N-dimethyl-n-butylamine for 2,6-dimethylphenol polymerization (1995)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 58 (1995), S. 1199-1204 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: 2,6-Dimethylphenol (2,6-DMP) polymerization with a catalytic complex of Cu2O/HBr/N,N'-di-tert-butylethylene diamine (DBEDA)/N,N-dimethyl-n-butylamine (DMBA)/dibutylamine (DBA) was studied, in which DMBA was prepared in situ from the methylation of n-butylamine over four different solid acid catalysts (two different γ-alumina, one silica-alumina, and one zeolite). The effectiveness of the unpurified methylation product solutions for promoting the 2,6-DMP polymerization was strongly dependent on the type of solid acid catalysts used. The performance of the best one (untreated product solution from the methylation reactor with Condea γ-alumina catalyst) was very similiar to that of the reagent grade DMBA. Infrared spectrum studies showed that DMBA acted as the external base for the 2,6-DMP polymerization catalyst system to neutralize the excess hydrobromic acid and to increase the polymerization rate. © 1995 John Wiley & Sons, Inc.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1995.070580713
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