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  • 1
    Electronic Resource
    Electronic Resource
    Synthetic resins, IV. Preparation and characterization of resins prepared from hydroxyacetophenone (1986)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 144 (1986), S. 23-37 
    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: Neue Harze wurden aus o-Hydroxyacetophenon durch Reaktion mit substituierten aromatischen Verbindungen und Formaldehyd in Anwesenheit verschiedener Säuren und Basen als Katalysatoren nach zwei Verfahren hergestellt. Die Polymeren wurden mit Hilfe der IR-Spektroskopie charakterisiert. Die thermischen, chemischen und Lösungseigenschaften der Harze, die nach der Methode von Small berechnet wurden, stimmen gut mit den experimentell ermittelten Werten überein. Die Harze sind ziemlich thermostabil, und die Aktivierungsenergie wurde aus der Thermogravimetriekurve nach Freeman-Anderson und Broido bestimmt.
    Notes: New resins have been synthesized from o-hydroxyacetophenone by reaction with substituted aromatic compounds and formaldehyde in the presence of various acids and bases as catalyst following two different techniques. The polymer samples are characterized by IR spectra. The solution, thermal, and chemical properties of the resins are investigated. The solubility parameters of the resins calculated according to the investigations of Small agree well with the experimental values. The resins are found to be fairly thermostable and the energy of activation is evaluated from TG curve by applying (i) Freeman-Anderson method and (ii) Broido method.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1986.051440103
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  • 2
    Electronic Resource
    Electronic Resource
    Small-angle X-ray scattering of air-dried kangaroo tail tendon (1981)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Chemistry Edition 19 (1981), S. 3165-3172 
    Details
    ISSN: 0360-6376
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Air-dired kangaroo tail tendon (KTT) is a protein sample similar to collagen and has been investigated by small-angle x-ray scattering treating it as a densely packed colloidal system which belongs to a general micelle system. Pore analysis of the substance yields a specific inner surface of 0.6282 × 10-5 Å-1, a range of inhomogeneity of 69.11 Å, a length of coherence of 248.2 Å, and air-fraction percentage of 0.011. A Kratky camera of the latest design has been used for experimental measurements. As the logĨ vs. logX curve gives a slope of -3, KTT belongs to a densely packed two-phase system. Here the theory of small-angle scattering by densely packed systems as developed by Porod has been applied to find different physical parameters of KTT.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1981.170191211
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  • 3
    Electronic Resource
    Electronic Resource
    Synthetic resins: II: Preparation and characterization of resins prepared from aminoacetophenone (1986)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 32 (1986), S. 5071-5083 
    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: A number of resins were prepared by condensing m-aminoacetophenone with substituted aromatic compounds and formaldehyde in the presence of acids and bases as catalyst. The resins were characterized by infrared spectra. The solubility parameters were calculated from Small's group contribution which agreed well with the experimental value. The bacteriocidal properties of the resins have been studied.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1986.070320526
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  • 4
    Electronic Resource
    Electronic Resource
    Synthetic resins. VI. Studies on reactivity ratios, thermal behavior, and bacteriocidal properties of resins prepared from substituted acetophenones (1988)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 35 (1988), S. 1537-1545 
    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: The reactivity ratios, thermal behavior, and the bacteriocidal properties of the resins prepared from substituted acetophenones, i.e., m-aminoacetophenone, o-hydroxyacetophenone, and m-hydroxyacetophenone, have been investigated. The results obtained from the bacteriocidal studies are found to be quite interesting. Some of the resins synthesized are potent bacteriocides. The simple Kelen - Tüdös linear graphical method was used to determine the order of reactivity of substituted acetophenones when they are copolymerized with halogen-substituted anilines, i.e., o-chloroaniline, m-chloroaniline, and p-chloroaniline. The resins are found to be thermally stable and the energy of activation have been evaluated from TG curve by applying the Freeman - Anderson and Broido methods.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1988.070350611
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  • 5
    Electronic Resource
    Electronic Resource
    Solution properties of poly acrylates. Part I. Poly(ethyl acrylates) and poly(n-propyl acrylates) (1967)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 107 (1967), S. 230-240 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Früher wurde beschrieben, daß das Anwachsen der Kettenlänge des Alkoholrestes in Estern der homologen Reihe von Polymethacrylaten die Eigenschaften dieser Verbindungen in Lösung beeinflußt. In der vorliegenden Arbeit wird über die Ergebnisse von Untersuchungen des osmotischen Druckes und über Lichtstreuungs- und Viskositätsmessungen von Polyäthyl- und Poly-n-propylacrylat in Methyläthylketon berichtet. Die Viskositäts- Molekulargewichts-Beziehung für die beiden Polymeren wurde aufgestellt. Die Konzentrationsabhängigkeit von [II/RTc] und [Hc/tau;] wurde bestimmt, die Ergebnisse wurden im Hinblick auf die Wechselwirkung von Polymeren und Lösungsmittel erörtert. Der Wechselwirkungsparameter χ und der mittlere Kettenendenabstand der polymeren Kette (r2)1/2 werden weitgehend durch die Wechselwirkung des α-Wasserstoffatoms des Polymeren einerseits und der Carbonylgruppe des Lösungsmittels andererseits beeinflußt. Wie aus der Theorie zu erwarten war, sinkt der zweite Koeffizient A2 mit dem Molekulargewicht, während der zweite Virialkoeffizient Γ2 steigt; die Koeffizienten A2Mw/[η] und Φ bleiben ziemlich konstant.
    Notes: Formerly it was reported that the length of the alcoholic residue of the homologous series of poly methacrylates affects their solution properties. In the present paper the results of osmotic pressure, light scattering, and viscosity measurements of poly(ethyl-) and poly-(n-propyl acrylate) in ethyl methyl ketone have been reported. The viscosity molecular weight relationship has been established for the two polymers. The concentration dependence of [II/RTc] and Hc/τ have been determined and the results have been discussed in light of polymer-solvent interaction. The interaction parameter χ and the root meansquare end-to-end distance of the polymer chain (r2)1/2 are largely influenced by the interaction between the α-hydrogen atom of the polymer and the carbonyl group of the solvent. As expected from theory the second coefficient A2 decreases and the second virial coefficient Γ2 increases with molecular weight and the coefficients A2Mw/[η] and Φ are fairly constant.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1967.021070122
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  • 6
    Electronic Resource
    Electronic Resource
    Studies on the polymerization of 3.3-bis-(chloromethyl)-oxacyclobutane with anhydrous aluminium chloride (1967)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 108 (1967), S. 67-72 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Die kationische Polymerisation von 3.3-Bis-chlormethyl-oxacyclobutan mit wasserfreiem Aluminiumchlorid wurde bei verschiedenen Temperaturen, Initiatorkonzentrationen und Polymerisationszeiten untersucht mit dem Ziel, höhermolekulare Polymere zu erhalten. Die Beziehung zwischen der Viskosität in Cyclohexanon und dem Molekulargewicht des Polymeren wurde bestimmt. Auf Grund der Resultate wird ein Mechanismus vorgeschlagen, welcher dem der Polymerisation mit BF3 ähnlich ist.
    Notes: The cationic polymerization of 3.3-bis-(chloromethyl)-oxacyclobutane with anhydrous aluminium chloride was studied varying the temperature, initiator concentration, and reaction time in order to get a polymer of high molecular weight. The viscosity-molecular weight relationship of this polymer was determined in cyclohexanone. A mechanism similar to that proposed for BF3 as initiator has been put forwarded in the light of experimental results obtained.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1967.021080104
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  • 7
    Electronic Resource
    Electronic Resource
    Cohesive-energy-densities of high polymers. Part VI. C.E.D. of polyvinyl esters (1965)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 84 (1965), S. 225-229 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Die Löslichkeitsparameter δ von Polyvinylacetat und -propionate wurden über die in einer Reihe von Alkylestern ausgeführten Messungen der Quellung und der Lösungsviskositäten bestimmt. Sie wurden mit den nach SMALL berechneten Werten verglichen. Die erhaltenen δ-Werte sind vergleichbar mit jenen der äquivalenten Strukturen, wohingegen in einer homologen Reihe δ mit waschsendem Volumen des alkoholischen Restes abnimmt.
    Notes: The solubility parameters (δ) of polyvinyl acetate and polyvinyl propionate were estimated by their swelling and solution viscosity measurements in a series of alkyl esters and were compared with the δ-values calculated from SMALL's result. The δ-values of these polymers are comparable with the δ-values of their structural equivalents, whereas in a homologous series δ decrease with increase in the volume of the alcoholic residue.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1965.020840120
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  • 8
    Electronic Resource
    Electronic Resource
    Cohesive energy density of high polymers. Part V. C. E. D. of polymethacrylates (1965)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 81 (1965), S. 173-179 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Die Kohäsionsenergiedichten von Methyl-, Äthyl-, Butyl- und Isobutylmethacrylasäureestern wurden über die Lösungsviskositäten in einer Reihe von Alkylestern bestimmt4,5. Die für die Polymeren erhaltenen Löslichkeitsparameter sind 9,40, 9,15, 9,00 und 8,65. Verglichen mit den Werten von Polyacrylsäureestern, sind diese Werte niedringer. Innerhalb der homologen Reihen nehmen die Kohäsionsenergiedichten mit zunehmender Länge der Alkoholketten ab.
    Notes: The C.E.D.'s of methyl, ethyl, butyl, and isobutyl methacrylates have been estimated from their solution viscosity measurements in a number of alkyl ester solvents,4,5. The solubility parameters obtained, (9.40, 9.15, 9.00, and 8.65) for the above polymers, suggest that C.E.D.'s of polymethacrylates are less than those of polyacrylates and in the homologous series, the C.E.D. decreases with increases in the length of the alcoholic chain.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1965.020810119
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  • 9
    Electronic Resource
    Electronic Resource
    Kinetics of polymerization of benzyl acrylate in bulk (1968)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 111 (1968), S. 168-171 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Die Reaktionskinetik der Polymerisation von Benzylacrylat bei 55, 60 und 65°C mit Azoisobuttersäuredinitril als Initiator wurde untersucht. Die Bruttopolymerisationsgeschwindigkeit, der Polymerisationsgrad, die Kettenübertragung durch das Monomere, das Verhältnis der Geschwindigkeitskonstanten fü Wachstum und Abbruch wurden berechnet. Die Bruttoaktivierungsenergie, die Differenz der Aktivierungsenergien für die Wachstums- und Abbruchsreaktion und der Frequenzfaktor wurden ebenfalls bestimmt.
    Notes: The kinetics of polymerization of benzyl acrylate has been studied at 55, 60, and 65°C with azobisisobutyronitrile as initiator. The overall rate of polymerization, degree of polymerization, chain transfer due to monomer, and the ratio of propagation and termination constant were calculated. The overall activation energy, the difference between the activation energy of propagation and termination, and the frequency factor are also reported.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1968.021110115
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  • 10
    Electronic Resource
    Electronic Resource
    Effect of organized anionic surfactant system on kinetics of polymerization of acrylonitrile initiated by Ce(IV): Citric acid and other organic substrates (1996)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 62 (1996), S. 19-25 
    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: The polymerization of acrylonitrile (AN) using the Ce(IV)-citric acid (CA) redox system as an initiator in aqueous nitric acid solution, in the presence of an anionic surfactant, sodium dodecyl sulfate (SDS), has been kinetically studied at a temperature range of 25-45°C. The rate of polymerization (Rp) and disappearance of Ce(IV) (-Rce) increase with increasing concentration of SDS, above its critical micelle concentration (cmc), when the surfactant molecules are organized. Rp was found to be proportional to [AN]1.5 and [CA]0.5. With other organic substrates, Rp follows the increasing order of sorbitol ≥ mannitol 〉 glycerol 〉 CA. But it was found to decrease considerably in the presence of cationic surfactant (CTAB), and nonionic surfactant (Triton-X-100) had no effect on the rate. -Rce varies linearly with [Ce(IV)] and [CA]. Both Rp and -Rce increase with increasing temperature. The overall activation energy was found to be 18.31 and 13.72 kcal/mol in the absence and presence of 0.015M SDS, respectively. The chain length of the polyacrylonitrile has also increased with increasing SDS concentration. © 1996 John Wiley & Sons, Inc.
    Additional Material: 5 Ill.
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