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  • 1
    Electronic Resource
    Electronic Resource
    A New Method of Separation of Organic Compounds (1953)
    [s.l.] : Nature Publishing Group
    Nature 172 (1953), S. 862-863 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Schonbein1 and Goppelsroeder2 were the first to utilize the separation effected by capillarity, in analytical work on organic compounds which they called "capillary analysis". After our unsuccessful attempts to purify the yellow crystalline compound mentioned above, we considered that the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/172862a0
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  • 2
    Electronic Resource
    Electronic Resource
    Solubility of polyethylene in xylene (1949)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 4 (1949), S. 527-529 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1949.120040408
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  • 3
    Electronic Resource
    Electronic Resource
    Osmotic measurements of isomeric polyvinyl isobutyl ethers (1949)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 4 (1949), S. 531-532 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1949.120040409
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  • 4
    Electronic Resource
    Electronic Resource
    Number-average molecular weight of acetaldehyde polymer (1949)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 4 (1949), S. 91-91 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1949.120040109
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  • 5
    Electronic Resource
    Electronic Resource
    Molecular weight of polytrifluorochloroethylene by high temperature osmometry (1951)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 6 (1951), S. 251-251 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1951.120060212
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  • 6
    Electronic Resource
    Electronic Resource
    Kinetics of polymerization of vinyl benzoate (1959)
    Hoboken, NJ : Wiley-Blackwell
    Journal of Polymer Science 37 (1959), S. 469-483 
    Details
    ISSN: 0022-3832
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Vinyl benzoate was polymerized in bulk as well as in solution, using benzoyl peroxide and azobisisobutyronitrile initiator at a temperature of 79.6°C. The overall rate of polymerization was found to be proportional to the concentration of the monomer and to the square root of the initiator concentration. Polymerization progressed to a normal extent, except that it increased with conversion, probably because of transfer with polymer. The value of the transfer constants with the monomer, initiator, and some solvents are reported.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1959.1203713217
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  • 7
    Electronic Resource
    Electronic Resource
    Studies on the polymerization of methacrylic esters part. II. Polymerization of n-butyl methacrylate and isobutyl methacrylate in benzene solution (1961)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 47 (1961), S. 128-137 
    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: Es wurde die Kinetik der mit Benzoylperoxyd initiierten Polymerisationen von n-Butylmethacrylat und Isobutylmethacrylat in Benzollösung untersucht. In beiden Fällen sind die Polymerisationsgeschwindigkeiten bedeutend kleiner als bei den Polymerisationen in Substanz, was auf den Abfall der Monomerenkonzentration [M] zurückgeführt werden kann. Die Reaktionsordnung in bezug auf [M] ist bei beiden untersuchten Systemen annähernd 1.
    Notes: Kinetics of the polymerization of n-butyl methacrylate and isobutyl methacrylate initiated by benzoyl peroxide in benzene solution were investigated. In both systems the rates of polymerization were found to be much less compared to bulk polymerization, that can be attributed to decrease in concentration of the monomer. The order of reaction with respect to monomer concentration was found to be nearly unity with both systems studied.The chain transfer constants with benzene (CS) have been determined.
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1961.020470111
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  • 8
    Electronic Resource
    Electronic Resource
    Studies on the polymerization of methacrylic esters. Part I. Polymerization of n-butyl methacrylate and isobutyl methacrylate (1961)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 47 (1961), S. 114-127 
    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: In der Arbeit wird über die Kinetik der Polymerisation von n-Butyl- und Isobutylmethacrylat berichtet. Bis zu 30% Umsatz bleibt der mittlere Polymerisationsgrad (DP) im wesentlichen konstant, oberhalb davon steigt der Umsatz. Typisch für die Methacrylsäreester ist die geringe Kettenübertragung zum Monomeren. Für beide Ester wurden die Keimbildungsgeschwindigkeiten ermittelt. Für das Poly-n-butylmethacrylat wurden aus einer doppeltlogarithmischen Auftragung von [η] gegen M die Werte von K und α der STAUDINGER-KUHNschen Gleichung bestimmt (K = 1,138 · 105; α = 0,893). Mit diesen Werten wurden die Molekulargewichte der fraktionierten Proben von Polyisobutylmethacrylat errechnet. Es wurde ferner versucht, die Gültigkeit der PALITschen Gleichung, 100 ρ0[η] + In M = K1M2/3 + K2, zu prüfen.
    Notes: Kinetics of the polymerization of n-butyl methacrylate and isobutyl methacrylate have been reported in this paper. The average degree of polymerization (DP) has been found to remain reasonably constant upto about 30 per cent conversion beyond which it is found to increase with conversion.The methacrylic esters are characterized by low chain transfer to monomer. Ki for both the esters have been determined. From a double logarithmic plot of [η] against M the values of K and α of the STAUDINGER-KUHN equation have been obtained for the poly-n-butyl methacrylate. Using the values of K and α thus obtained molecular weights of fractionated samples of polyisobutyl methacrylate have been calculated. Attempt has been made to test the validity of PALIT's equation connecting [η] and M.
    Additional Material: 11 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1961.020470110
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  • 9
    Electronic Resource
    Electronic Resource
    Studies on the polymerisation of vinyl esters of higher fatty acids. Part I. Polymerisation of vinyl n-butyrate, vinyl isobutyrate, vinyl n-caproate and vinyl isocaproate (1959)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 29 (1959), S. 1-18 
    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: Es wird über die Kinetik der polymerisation der vinylester der n-Buttersäure, Isobuttersäure, n-Capronsäure und Isocapronsäure berichtet. Der DP steigt mit dem Umsatz. Alle Vinylester sind durch eine hohe Kettenübertragung zum Monomeren gekennzeichnet. Ki und die K- und α-Werte der STAUDINGER-KUHNschen Gleichung werden bestimmt. Das Wirkungsvolumen in Lösungen von Fraktionen der Polyvinylester wird berechnet. Verzweigung, Ansteing der Länge der Acylgruppe im Monomeren und steigendes Molekulargewicht des Polymeren begünstigen die knäelung.
    Notes: Kinetics of the polymerisation of vinyl n-butyrate, vinyl isobutyrate, vinyl n-caproate and vinyl isocaproate have been reported in this paper. The average DP has been found to increase with conversion.The vinyl esters are characterised by high chain transfer to monomer. Ki for all the esters have been determined. K and α values of the STAUDINGER-KUHN equation have been determined. The average effective dimensions in solutions of fractionated samples of the polyvinyl esters have been calculated. Branching or increase in the length of the acyl group of the vinyl monomer and the moleculer weight of the polymer were found to favour the polymer to assumed coiled configuration.
    Additional Material: 15 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1959.020290101
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  • 10
    Electronic Resource
    Electronic Resource
    Studies on the polymerisation of vinyl esters of higher fatty acids. Part II. Polymerisation of vinyl esters of n- and iso-butyric acid and n- and iso-caproic acid in benzene solution (1959)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 29 (1959), S. 19-25 
    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: Es wird die Kinetik der mit Benzoylperoxyd initiierten Polymerisation der Vinylester der n-Buttersäure, Isobuttersäure, n-Capronsäure und Isocapronsäure in Benzol untersucht. In allen Fällen waren die Polymerisationsgeschwindigkeiten im verhälthins zur Blockpolymerisation weit kleiner, als der Verdünnung des Monomeren zugeschrieben werden kann. Die Reaktionsordnung, bezogen auf die Monomer-Konzentration, war stets größer (1,8-1,9) als 1.Die Kettenübertragungskonstanten für Benzol (CS) und Benzolperoxyd (CI) wurden bestimmt.
    Notes: Kinetics of benzoyal peroxide initiated polymerisation of vinyl easters of n-butyric, iso-butyric, n-caproic, isocaproic acids in benzene were investigated. In all the systems the rate of polymerisations were found to be much less as compared with bulk polymerisation, than can be attributed to dilution of the monomer. The reactions with respect to monomer concentration were found to be a higher order (1.8 to 1.9) than unity.The constants of chain transfer to benzene (CS) and to benzoyal peroxide (CI) have been obtained.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1959.020290102
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