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  • 1
    Digitale Medien
    Digitale Medien
    Synthesis of difuran diesters from furfural, and their evaluation as plasticizers for polyvinyl chloride (1995)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 55 (1995), S. 1837-1846 
    Details
    ISSN: 0021-8995
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: The compounds 1,1-bis[5-(2-ethylhexyl, 2-octyl, hexyl, and butyl)carboxylate-2-furyl)ethane, and 5,5′-dihexylcarboxylate-2,2′ bifuran were synthesized from furfural and characterized for their plasticizing abilities toward polyvinyl chloride (PVC) by dynamic mechanical thermal analyses (DMTA) with di-(2-ethylhexyl)phthalate (DOP)as the standard of reference. DMTA gave values for the depression of the glass-transition temperature (Tg) per mass fraction of plasticizer, and it also yielded a set of parameters, relative to those of DOP, which describe the compatability of the furan diesters with PVC. These values are compared to those of DOP and furan diesters incorporating only one furan ring in the molecular structure, which have previously been tested by this method. The difuran plasticizers are less efficient in lowering Tg than the monofuran plasticizers or DOP, with 1,1-bis[5-(2-octyl)carboxylate-2-furyl]ethane the least efficient and 1,1-bis(5-hexylcarboxylate-2-furyl)ethane the most efficient. On average the compatability toward PVC is better than that of DOP, and similar to that of analogous monofuran structures. © 1995 John Wiley & Sons, Inc.
    Zusätzliches Material: 6 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/app.1995.070551314
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  • 2
    Digitale Medien
    Digitale Medien
    Synthesis and evaluation of dialkyl furan-2,5-dicarboxylates as plasticizers for PVC (1994)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 53 (1994), S. 1785-1793 
    Details
    ISSN: 0021-8995
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: Di(2-ethylhexyl), di(2-octyl), dihexyl, and dibutyl furan-2,5-dicarboxylate were synthesized from furfural and characterized for their plasticizing abilities toward PVC by dynamic mechanical thermal analysis (DMTA) with di(2-ethylhexyl) phthalate (DOP) as the standard of reference. DMTA gave values for the depression of the glass transition temperature (Tg) per mass fraction of plasticizer, and it also yielded a set of parameters, relative to those for DOP, which describe the compatibility of the furan diesters with PVC. The efficiency in lowering Tg as exhibited by di(2-ethylhexyl) furan-2,5-dicarboxylate is similar to that of its benzenoid analog, DOP, and was determined at 2.41 and 2.45°C per mass % plasticizer, respectively. All four furan diesters were found to be more compatible toward PVC than toward DOP, with dibutyl furan-2,5-dicarboxylate the most highly compatible. © 1994 John Wiley & Sons, Inc.
    Zusätzliches Material: 6 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/app.1994.070531308
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  • 3
    Digitale Medien
    Digitale Medien
    Synthesis and evaluation of some functionalized difuran diesters as plasticizers for PVC (1995)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 57 (1995), S. 727-738 
    Details
    ISSN: 0021-8995
    Schlagwort(e): Chemistry ; Polymer and Materials Science
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie , Maschinenbau , Physik
    Notizen: Butyl, hexyl, and 2-ethylhexyl diesters of 1,1-bis(5-carboxyl-2-furyl)-2,2-dichloroethene, hexyl and 2-ethylhexyl diesters of 1,1-bis(5-carboxyl-2-furyl) ketone, and the hexyl diester of 1,1-bis(5-carboxyl-2-furyl)methane were synthesized from furfural and evaluated for their plasticizing abilities toward PVC, by the application of dynamic mechanical thermal analysis and [di(2-ethylhexyl) phthalate] as a standard of reference. © 1995 John Wiley & Sons, Inc.
    Zusätzliches Material: 7 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/app.1995.070570608
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  • 4
    Digitale Medien
    Digitale Medien
    Sexual dimorphism in neuronal projections from the antennae of silk moths (Bombyx mori, Antheraea polyphemus) and the gypsy moth (Lymantria dispar) (1987)
    Springer
    Cell & tissue research 249 (1987), S. 39-50 
    Details
    ISSN: 1432-0878
    Schlagwort(e): Olfaction ; Antennae ; Pheromones ; Bombykol ; Sexual dimorphism ; Bombyx mori ; Antheraea polyphemus ; Lymantria dispar
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary The antennal lobe of both sexes of the silk moth Bombyx mori contains 55–60 ventrally located antennal glomeruli; in addition, that of the male contains a dorsal macroglomerular complex (MGC). A group of identifiable glomeruli consisting of two lateral large glomeruli (LLG) and four medial small glomeruli (MSG) is present in both sexes, but the LLG are greatly enlarged in the female. A MGC is also present in the male gypsy moth Lymantria dispar and male giant silk moth Antheraea polyphemus. The MGC in all of these species is organized into 3–4 distinct levels of glomeruli. Antennal sensory fibers were stained by cobalt backfills in B. mori, A. polyphemus, and L. dispar. Most fibers stained from cut long hairs (sensilla trichodea) projected to MGC in males and LLG in both sexes of B. mori. The distribution of fibers in the MGC of B. mori was topographically biased in that a majority of fibers from anterior branches projected medially in MGC while most fibers from posterior branches projected laterally or anteriorly. Terminal arborizations of single fibers were each restricted to a single glomerular level of the MGC. Fibers projecting to the posterior antennal center were frequently stained in cut-hair and control preparations, apparently by uptake of cobalt through intact sensilla on flagellar branches.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00215416
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  • 5
    Digitale Medien
    Digitale Medien
    Untersuchungen an Oximkomplexen. IV Über die Reaktion von Kobalt(II)-Salzen mit Diacetylmonoxim-β-pyridyl-(2)-äthylimin (1966)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 346 (1966), S. 173-180 
    Details
    ISSN: 0044-2313
    Schlagwort(e): Chemistry ; Inorganic Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Beschreibung / Inhaltsverzeichnis: Cobalt(II) salts react with excess diacetylmonoxime-β-pyridyl-(2)-ethylimine (DPÄ) forming complexes of the type [CoIII(DPÄ - H)2]X with X = Cl, J, NCS, NO3, ClO4, atmospheric oxygen being the oxidant. Starting with Co to ligand ratios of 1:2 and 1:1, complex salts of the types [Co(DPÄ - H)2]2[Co(NCS)4] and [Co(DPÄ - H)2] [CoCl3(C2H5OH)] · C2H5OH, respectively, are obtained. The complexing ability of DPÄ is discussed and compared with those of other oxime ligands.
    Notizen: Kobalt(II)-Salze bilden bei der Umsetzung mit dem in der Überschrift genannten Liganden (DPÄ) in großem Überschuß Komplexe des Typs [CoIII(DPÄ - H)2]X (X = Cl, J, NCS, NO3, ClO4). Als Oxydationsmittel fungiert der Luftsauerstoff. Werden die Komponenten im Verhältnis 1:2 bzw. 1:1 zur Reaktion gebracht, so entstehen Komplexsalze wie [Co(DPÄ - H)2]2[Co(NCS)4] und [Co(DPÄ - H)2] [CoCl3(C2H5OH)] · C2H5OH. Das komplexchemische Verhalten von DPÄ wird mit dem anderer Oximliganden verglichen.
    Zusätzliches Material: 1 Tab.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/zaac.19663460309
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  • 6
    Digitale Medien
    Digitale Medien
    Untersuchungen an Oximkomplexen. II. Diacetylmonoxim-β-pyridyl-(2)-äthylimin, ein neuer dreizähliger Ligand (1964)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 333 (1964), S. 90-98 
    Details
    ISSN: 0044-2313
    Schlagwort(e): Chemistry ; Inorganic Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Beschreibung / Inhaltsverzeichnis: Diacetyl monoxime-β-pyridyl-(2)-ethylimine (DPE) reacts with Ni(II) salts forming paramagnetic complexes of the type Ni(DPE)2X2 (with X = NO3, ClO4, J-). DPE behaves as a tridentate ligand. In the compounds Ni(DPE)2(SCN)2 and Ni(DPE)(SCN)2, the thiocyanate ions participate, at least partially, in the complex formation.Whereas Cu(II) ions normally form 1,1 complexes of the type Cu(DPE)Y2 with Y = Cl-, Br-, NO3, from the interaction between the perchlorate and DPE a chelate compound of the formula [Cu(DPE - H)]ClO4, probably being dimeric, results. The compounds Zn(DPE)Cl2 and Zn(DPE)J2 are non-electrolytes in acetonitrile.
    Notizen: Diacetylmonoxim-β-pyridyl-(2)-äthylimin (DPÄ) bildet mit Nickel(II)salzen paramagnetische Komplexe des Typs Ni(DPÄ)2X2 (X = NO3. ClO4- und J-). DPÄ fungiert darin als dreizähliger Ligand. In den Verbindungen Ni(DPÄ)2(SCN)2 und Ni(DPÄ)(SCN)2 sind die Rhodanidionen zumindest teilweise an der Komplexbildung beteiligt. Kupfer(II)-Ionen bilden mit DPÄ die 1,1-Komplexe Cu(DPÄ)Y2 [Y = Cl-, Br- und NO3]. Nur bei der Umsetzung mit Kupferperchlorat entsteht ein, wahrscheinlich dimerer, Innerkomplex [Cu(DPÄ - H)]ClO4. Die Verbindungen Zn(DPÄ)Cl2 und Zn(DPÄ)J2 besitzen in Acetonitril Nichtelektrolytcharakter.
    Zusätzliches Material: 1 Tab.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/zaac.19643330113
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