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  • 1985-1989  (7)
  • 1985  (7)
  • Chemistry  (6)
  • Biochemical composition  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Mottling phenomena and quality of grains of different genotypes of Durum wheat grown under limited irrigation conditions (1985)
    Springer
    Plant and soil 87 (1985), S. 315-318 
    Details
    ISSN: 1573-5036
    Keywords: Biochemical composition ; Durum wheat ; Genotypes ; Irrigation ; Mottling of grain
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Field experiment was conducted to show the effect of one irrigation of 10 cm water applied to durum wheat (Triticum durum) at crown root initiation stage, active tillering stage, anthesis stage and compared them with non irrigated plot using A-206, A-28, A-1-8-8-42-1, G.W.-1 and A-23-10 genotypes under the conditions of salt affected areas having shallow saline aquifer, on quality, yield and mottling phenomena in wheat grain. Application of irrigation significantly increased the yield and decreased the per cent mottled grain and the maximum achievement was obtained when water was applied during the stage of anthesis. Non mottled grain contained higher protein than mottled grain and there were no considerable differences in other biochemical constituents. Genotype G.W.-1 stands first in its yield performance and low mottled grain.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02181872
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    A hydroxyketone-diamine poly schiff base and its polymeric chelates (1985)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 132 (1985), S. 61-68 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Es werden die Herstellung eines Polyazomethins (PSB) durch Kondensation von 4,4′-Dihydroxy-3,3′-dibenzylbiphenyl mit 4,4′-Diaminodiphenylmethan sowie seiner Polychelate beschrieben. PSB wirkt als vierzähliger Ligand. Eine Struktur der Polymeren wird vorgeschlagen. Alle Polychelate außer diejenigen mit Zn(II) als Metall sind paramagnetische, dunkel gefärbte, pulvrige Feststoffe, die unlöslich in gebräuchlichen organischen Lösungsmitteln sind.
    Notes: The preparations of a poly(azomethine) (PSB) via condensation of 4,4′-dihydroxy-3,3′-dibenzylbiphenyl with 4,4′-diaminodiphenylmethane and its polychelates are described. PSB acts as a tetradentate ligand. A structure of the polymers is proposed. All the polychelates except those with Zn(II) as metal are paramagnetic, dark colored powdery solids which are insoluble in common organic solvents.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1985.051320105
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    8-Hydroxy quinoline-furfural polymers (1985)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 131 (1985), S. 135-143 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Poly-8-hydroxychinolin-furfural (8HQ-Fu) wurde durch Kondensation von 8-Hydroxychinolin mit Furfural in Gegenwart von wäßrigem K2CO3 und NaOH als Katalysatoren hergestellt. Dabei wurden die beiden Reaktanden in äquimolaren Verhältnissen eingesetzt. Die Polymerproben wurden durch Elementaranalysen, IR-Spektren und thermogravimetrische Analysen charakterisiert. Das zahlenmittlere Molekularge-wicht (Mn) wurde durch Dampfdruckosmometrie und nichtwäßrige Titration bestimmt. Grenzviskositäten aller Polymerproben wurden in DMF gemessen.Polymere Metallchelate von Cu2+, Fe3+, Co2+, Zn2+, Mn2+, Ni2+ mit 8HQ-Fu wurden hergestellt und charakterisiert.
    Notes: Poly(8-hydroxyquinoline-furfural) (8HQ-Fu) was prepared by condensing 8-hydroxyquinoline with furfural in the presence of aqueous K2CO3 and NaOH as catalysts using equimolar proportions of the two reactants. The polymer samples were characterized by elemental analysis, IR spectra, and thermogravimetric analysis. The number average molecular weight (Mn) was determined both by vapour pressure osmometry and by non-aqueous titration. Intrinsic viscosities of all the polymer samples were measured in DMF.Polymeric metal chelates of Cu2+, Fe3+, Co2+, Zn2+, Mn2+, Ni2+ with the 8HQ-Fu polymer were prepared and characterized.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1985.051310111
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  • 4
    Electronic Resource
    Electronic Resource
    Studies on structural aspects of cellulose acetate (1985)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 130 (1985), S. 125-136 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Die vorliegenden Untersuchungen sollen einen Beitrag zur Strukturaufklärung von amorphen Polymeren mit starren Polymerketten darstellen. Zu diesem Zweck wurden Celluloseacetate (CA) mit verschiedenen Substitutionsgraden (DS) hergestellt. Die Proben wurden durch IR-Spektroskopie, Differential-Scanning-Calorimetry (DSC) und dynamisch-mechanische Analyse (DMA) charakterisiert. Rasterelektronenmikroskopische Aufnahmen von gefriergebrochenen Oberflächen dieser Polymeren zeigten, daß außer lamellaren Strukturen auch kugelige Strukturen beobachtbar waren.
    Notes: In the present investigation an attempt has been made to throw light on the structure of stiff chain amorphous polymers. For this purpose cellulose acetates (CA) having different degrees of substitution (DS) were prepared. The samples were characterised by IR-spectroscopy, Differential Scanning Calorimetry (DSC) and Dynamic Mechanical Analysis (DMA). Scanning electron micrographs of the cryogenically fractured surfaces of these polymers showed that along with lamellar structures, nodular structures were also observable.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1985.051300110
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Processibility of starch-graft-polyacrylonitrile copolymers (1985)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 136 (1985), S. 135-145 
    Details
    ISSN: 0003-3146
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Mit Polyacrylnitril gepfropfte Stärke wurde aus Stärkegranulat von herkömmlicher Hirse (Penicum Miliaceum, L) hergestellt, und seine Verarbeitungsmöglichkeiten unter Verwendung des Brabender Plasticorders wurden untersucht. Glycerin als bekannter Weichmacher für Stärke ist als Weichmacher für dieses Polymere nicht geeignet. Eine Mischung von 1:1 Stärke : Stärkepfropfpolyacrylnitril und 25% Glycerin kann verarbeitet und zu einem Film extrudiert werden. Die Festigkeit des Films war geringer als die der reinen Stärke. Der Film, der aus dem Pfropfcopolymeren und mit Polymethylmethacrylat gepfropfter Stärke hergestellt war, hatte eine hohe Zugfestigkeit. Über die Daten der Fließaktivierungsenergie, die mit einem Torsionsrheometer erhalten wurden, wird ebenfalls berichtet.
    Notes: Starch-graft-polyacrylonitrile (S-g-PAN) has been prepared from granular starch of common millet (Penicum miliaceum, L) and its processibility has been examined using the Brabender Plasticorder. Glycerine, a known plasticizer for starch does not work as plasticizer for S-g-PAN. A mixture of 1 : 1 starch : S-g-PAN and 25% glycerine can be processed and a film can be extruded. The strength of the film was less than that of pure starch. The film prepared from the mixed graft copolymer of S-g-PAN and S-g-PMA had high tensile strength. The data on flow activation energy obtained from the torque-rheometer are also reported.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1985.051360110
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Phase transition in manganese and zinc fluorotitanate hexahydrate and hexadeuterate systems observed by Raman spectroscopy (1985)
    Chichester [u.a.] : Wiley-Blackwell
    Journal of Raman Spectroscopy 16 (1985), S. 149-155 
    Details
    ISSN: 0377-0486
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Raman spectra of MnTiF6·6H2O, MnTiF6·6D2O, ZnTiF6·6H2O and ZnTiF6·6D2O single crystals were studied in different polarizations between 300 and 77 K and the observed bands were assigned to the various modes of vibrations of these systems. Phase transition in these systems was observed by studying the intensity of νs(TiF6) mode and νs(H2O/D2O) mode with temperature. The mechanism of the phase transition is discussed.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jrs.1250160304
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Raman studies of phase transitions in Mg(ClO4)2·6H2O crystal (1985)
    Chichester [u.a.] : Wiley-Blackwell
    Journal of Raman Spectroscopy 16 (1985), S. 303-307 
    Details
    ISSN: 0377-0486
    Keywords: Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Raman spectra of Mg(ClO4)2·6H2O single crystal in different polarizations in the temperature range 350-110 K are presented. Three phase transitions were found at 325, 272 and 225 K. The transition at 272 K is associated with the rotation of crystallographic a and b axes with respect to the space-fixed coordinate axes X and Y in the ab plane. The transition at 325 K occurs as a result of reorientation of the ClO4- ion and that at 225 K as a result of the tumbling motion of the aquo complex.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jrs.1250160503
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    Paper (German National Licenses)
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