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  • 1990-1994  (3)
  • 1985-1989  (1)
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Year
  • 1
    Electronic Resource
    Electronic Resource
    Preparation and properties of 1-ethoxy-2,2,2-trifluoroethyl esters of acrylic and methacrylic acids and of their polymers (1988)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part A: Polymer Chemistry 26 (1988), S. 267-274 
    Details
    ISSN: 0887-624X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1-Ethoxy-2,2,2-trifluoroethyl esters of acrylic (I) and methacrylic (II) acids were synthesized from 1-ethoxy-2,2,2-trifluoroethanol and acryloyl- and methacryloylchloride, respectively, and their densities, mass, 1H- and 13C-NMR spectra were measured and the rate constants of hydrolysis were determined. Poly(I) and poly(II) were prepared by radical homopolymerization; the rates of polymerization, specific volume contractions in polymerization, limiting viscosity numbers, average number degrees of polymerization, temperature dependences of the heat capacities both in glass and liquid state, glass transition temperatures, and the initial temperature of the spontaneous thermal decomposition of homopolymers were determined. The monomer reactivity ratios of the styrene (S) copolymerizations, S—I and S—II, and the Alfrey-Price copolymerization constants e and Q for I and II were calculated from the composition of copolymers of I and II with styrene.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pola.1988.080260126
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  • 2
    Electronic Resource
    Electronic Resource
    Pervaporation of ethanol-water mixtures through styrene-substituted N-phenylmaleimide copolymer membranes (1992)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 46 (1992), S. 2039-2042 
    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 copolymers of styrene with substituted N-phenylmaleimides were synthesized and their solutions in chloroform were used in the casting of homogeneous membranes. The latter were applied in the separation of variously concentrated ethanol - water mixtures by pervaporation at 35°C. The membranes were characterized by the separation factor related to preferentially transported water and by the flux of the permeate. In contrast to membranes made from copolymers of styrene with N-phenylmaleimide, the separation factor of membranes containing substituted N-phenylmaleimides increased with increasing amount of ethanol in the feed solution. The effect of incorporated imide units on the properties of the membranes under investigation is discussed. © 1992 John Wiley & Sons, Inc.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1992.070461116
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  • 3
    Electronic Resource
    Electronic Resource
    Trimethyl(maleimidophenyl)ammonium iodides and their copolymers (1990)
    Weinheim : Wiley-Blackwell
    Acta Polymerica 41 (1990), S. 607-611 
    Details
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Neue quaternäre Ammoniummonomere aus N-(Dimethylaminophenyl)maleinimiden wurden dargestellt und charakterisiert. Durch ihre Copolymerisation mit Vinylverbindungen und durch Modifizierung von Polymeren der Ausgangsimide mit Methyliodid wurden Copolymere gewonnen, die Trimethyl(maleinimidophenyl)ammonium-Einheiten enthalten. Aus den vernetzten Imid-Copolymeren wurden Membranen hergestellt, und nach der Quaternisierung der tertiären Aminogruppen wurden ihre Eigenschaften bestimmt.
    Notes: New quaternary ammonium monomers derived from N-(dimethylaminophenyl)-maleimides were prepared and characterized. Their copolymerization with vinyl compounds and modification of the polymers of the starting imides with methyl iodides yielded copolymers containing trimethyl(maleimidophenyl)ammonium units. Membranes based on crosslinked imide copolymers were prepared, and their properties were determined after quaternization of the tertiary amino groups.
    Additional Material: 6 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/actp.1990.010411204
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  • 4
    Electronic Resource
    Electronic Resource
    The copolymerization reactions of N-(2-methyl-5-dimethylaminophenyl)maleimide (1992)
    Weinheim : Wiley-Blackwell
    Acta Polymerica 43 (1992), S. 54-57 
    Details
    ISSN: 0323-7648
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Description / Table of Contents: Die radikalische Copolymerisation des N-(2-Methyl-5-dimethylaminophenyl)maleinimids (I) mit Styren (S), Methylmethacrylat (MMA), 2-Dimethylaminoethylmethacrylat (DAMA), Acrylnitril (AN), Methacrylsäure (MA) und Isopren (IP) wurde verfolgt. Die Copolymerisations-Parameter der Monomer-Paare I - S, I - MMA wurden bestimmt, und die Alfrey-Price-Konstanten e, Q des Imids wurden berechnet. Neben der Copolymerisation von I mit IP wurde auch die parallel verlaufende Diels-Alder-Addition untersucht.
    Notes: The radical copolymerization of N-(2-methyl-5-dimethylaminophenyl)maleimide (I) with styrene (S), methyl methacrylate (MMA), 2-dimethylaminoethyl methacrylate (DAMA), acrylonitrile (AN), methacrylic acid (MA), and isoprene (IP) was investigated. The reactivity ratios of pairs of monomers I - S, I - MMA were determined, and the Alfrey-Price constants e, Q of the imide I were calculated. Along with the copolymerization of I with IP, the Diels-Alder addition proceeding in parallel was also followed.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/actp.1992.010430112
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