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  • Polymer and Materials Science  (23)
  • 2015-2019
  • 1975-1979  (23)
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Keywords
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  • 1
    Electronic Resource
    Electronic Resource
    Synthesis of polymers containing phosphoric ester (1976)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 177 (1976), S. 1235-1241 
    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: Benzyl-2-(methacryloyloxy)äthyl-2′-(phthalimido)äthylphosphat (1) und 2-(Methacryloyloxy)äthyl-2′-(phthalimido)äthyl-hydrogenphosphat (3) wurden dargestellt, charakterisiert und mit 2,2′-Azoisobutyronitril polymerisiert. Die Eigenschaften der erhaltenen Polymere werden beschrieben.
    Notes: Benzyl 2-(methacryloyloxy)ethyl 2′-(phthalimido)ethyl phosphate (1) and 2-(methacryloyloxy)ethyl 2′-(phthalimido)ethyl hydrogen phosphate (3) were synthesized, characterized, and polymerized with 2,2′-azoisobutyronitrile. The properties of the resultant polymers are described.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1976.021770501
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  • 2
    Electronic Resource
    Electronic Resource
    Surface photografting, 2Part 1: cf.9.. Modification of polypropylene film surface by graft polymerization of acrylamidePresented to the 26th Polymer Symposium, Polymer Society Japan, Tokyo, November 1977. (1978)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 179 (1978), S. 2603-2612 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The hydrophobic surface of oriented poly(propylene) film (OPP) was modified to a hydrophilic one by a novel photo-grafting procedure using acrylamide (AM) as monomer. A deoxygenated acetone solution containing AM and benzophenone (BP) or other sensitizers was brought into contact with OPP film and the reaction system was photoirradiated from the other side of the polymer film. Within a few minutes, surface photo-grafting resulted. The influences of solvent, sensitizer, and additives revealed that the graft polymerization was initiated by hydrogen abstraction from the polymer surface by the triplet excited state of the sensitizer. IR Spectroscopy as well as ESCA measurements confirmed that the graft polymerization occurred on the film surface. The wettability of the grafted OPP film is discussed and correlated with the relative amount of surface grafting. The contact angle of untreated OPP film to water (101°) decreased to ≈40° after surface photografting. The drastic change of surface properties makes the practical application of the present technique feasible.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1978.021791102
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  • 3
    Electronic Resource
    Electronic Resource
    Vinyl polymerization by metal complexes, 19Part 18, cf.14.. Formation of copper(II) chelates of vinylamine/vinyl alcohol copolymers (1975)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 176 (1975), S. 2225-2239 
    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 Chelatbildung der Vinylamin/Vinylalkohol-Copolymeren mit Kupfer(II)ionen wurde sowohl spektrophotometrisch als auch titrimetrisch untersucht. Zum Vergleich wurden weiterhin Gemische aus Polyvinylamin und Polyvinylalkohol vermessen. Es ergab sich, daß die Kupfer(II)ionen im Falle der Copolymersysteme ausschließlich von den Stickstoffatomen des Copolymerliganden koordiniert werden. Die Komplexierungskonstanten der Chelate wurden durch Anwendung der modifizierten Bjerrumschen Methode - unter Vernachlässigung der Säuredissoziation der Copolymer-Hydroxygruppen - bestimmt. Es ergab sich. daß die Copolymer/Kupfer(II)chelate mit abnehmendem Gehalt an NH2-Gruppen in den Copolymeren instabiler werden. Im Falle der Homopolymer-Gemische werden die Kupfer(II)ionen nur von den Stickstoffatomen des Polyvinylamins, nicht aber von den Sauerstoffatomen des Polyvinylalkohols koordiniert.
    Notes: Chelate formation of vinylamine/vinyl alcohol copolymers with copper(II) was studied both by the spectrophotometric and by titrimetric methods. For comparison, polyvinylamine/poly(vinyl alcohol) mixtures were also taken up for measurements. In the case of the copolymer systems, copper(II) ions were found to be coordinated exclusively by nitrogen atoms of the copolymer ligand. The complexation constants of the chelates were determined by applying the modified Bjerrum method, in neglect of the acid dissociation of hydroxy groups in the copolymers. It was found that the copolymer/Cu(II) chelates tend to be unstable with decreasing contents of NH2 groups in the copolymers. In the homopolymer mixture systems, copper(II) ions are not coordinated by the oxygen atoms of poly(vinyl alcohol), but only by the nitrogen atoms of polyvinylamine.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1975.021760805
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  • 4
    Electronic Resource
    Electronic Resource
    Enthalpies of dilution of poly(1-vinyl-2-pyrrolidone) + aqueous methanol solution (1975)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 176 (1975), S. 3425-3431 
    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: Verdünnungsenthalpien für Poly(1-vinyl-2-pyrrolidon), (Poly[1-(2-oxopyrrolidin-1-yl)-ethylene]), in wäßrigen Methanollösungen von unterschiedlichem Methanolgehalt, wurden bei 298 K gemessen. Das Molekulargewicht des Polymeren betrug 10000 bzw. 40000.Die experimentellen Ergebnisse wurden nach einer modifizierten Tompa-Gleichung mit konzentrationsabhängigem Wechselwirkungsparameter analysiert und so der Wechselwirkungsparameter zwischen dem Polymeren und dem Mischlösungsmittel für unendliche Verdünnung erhalten.Der Einfluß von Methanol auf die Wechselwirkung zwischen dem Polymeren und Wasser wurde aufgrund der Änderungen des Wechselwirkungsparameters bei unendlicher Verdünnung für die Überführung des Polymeren von Wasser in wäßriges Methanol diskutiert.
    Notes: Enthalpies of dilution of poly(1-vinyl-2-pyrrolidone), (poly[1-(2-oxopyrrolidin-1-yl)ethylene]), in aqueous methanol solutions of different methanol contents were measured at 298 K. The molecular weight of the polymer was 10000 and 40000, respectively.The experimental results were analysed with a modified Tompa formula containing an interaction parameter dependent on concentration; so the interaction parameter at infinite dilution between the polymer and the mixed solvent was derived.The influence of methanol on the interaction between polymer and water molecules was discussed from the change of the interaction parameter at infinite dilution for the transfer process from water to aqueous methanol solvent.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1975.021761124
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  • 5
    Electronic Resource
    Electronic Resource
    Synthesis and polymerization of 2-(p-methacryloyloxybenzoyl)ethyl 2′-(phthalimido)ethyl hydrogen phosphate (1976)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 177 (1976), S. 1973-1979 
    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 werden die Darstellungen von Benzyl-2-(p-methacryloyloxybenzoyl)äthyl-2′-(phthalimido)äthyl-phosphat (3) und 2-(p-Methacryloyloxybenzoyl)äthyl-2′-(phthalimido)äthyl-hydrogen-phosphat (6) beschrieben. Die Monomeren werden charakterisiert und mit 2,2′-Azoisobutyronitril (AIBN) polymerisiert. Die Eigenschaften der erhaltenen Polymeren werden beschrieben.
    Notes: Benzyl 2-(p-methacryloyloxybenzoyl)ethyl 2′-(phthalimido)ethyl phosphate (3) and 2-(p-methacryloyloxybenzoyl)ethyl 2′-(phthalimido)ethyl hydrogen phosphate (6) were prepared, characterized, and polymerized with 2,2′-azoisobutyronitrile (AIBN). The properties of the resultant polymers are described.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1976.021770705
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  • 6
    Electronic Resource
    Electronic Resource
    Vinyl polymerization by metal complexes, 30.Part 29: cf.8. On the initiation mechanism of vinyl polymerization by the system copper(II) chelate of poly(vinyl alcohol)/carbon tetrachloride: Spin trapping and gelation studies (1977)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 178 (1977), S. 317-328 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The initiation mechanism of vinyl polymerization by a copper(II) chelate of poly(vinyl alcohol) was studied in aqueous solution in the presence of carbon tetrachloride, in order to determine the free radical species formed during the initiation step. Trichloromethyl radicals were ascertained to be the main initiation species, by spin trapping and gelation experiments. Differences in polymerization activity between methyl methacrylate and acrylonitrile are discussed.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1977.021780203
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  • 7
    Electronic Resource
    Electronic Resource
    Exact form of enthalpy of dilution of polymer solutions expressed in terms of concentration-dependent flory-Huggins interaction parameter (1978)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 179 (1978), S. 557-560 
    Details
    ISSN: 0025-116X
    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/macp.1978.021790234
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  • 8
    Electronic Resource
    Electronic Resource
    Vinyl polymerization by metal complexes, 20Part 19, cf.4.. Initiation by vinylamine/vinyl alcohol copolymer · copper(II) systems (1975)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 176 (1975), S. 2241-2249 
    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 durch verschiedene Kupfer(II)chelate in Gegenwart von Tetrachlormethan initiierte Polymerisation von Acrylnitril (AN) und Methylmethacrylat (MMA) wurde untersucht. Als polymere Liganden wurden sowohl einige Vinylamin (VAm)/Vinylalkohol (VA)-Copolymerisate verschiedener Gehalte an Monomereinheiten mit NH2- und OH-Gruppen als auch einige Polyvinylamin (PVAm)/Polyvinylalkohol (PVA)-Gemische (gleicher Gehalte an NH2- und OH-Gruppen wie die entsprechenden Copolymeren) sowie PVAm und PVA verwendet. Die Aktivität dieser polymeren Chelate zur Auslösung der AN und der MMA Polymerisation bei verschiedenen pH-Werten der Reaktionssysteme wurde verglichen. Im Falle der Polymerisation von MMA, zeigten die VAm/VA-Copolymersysteme eine höhere Aktivität als das PVAm-Chelat mit der gleichen molaren Konzentration an NH2-Gruppen, im Gegensatz zur AN-Polymerisation bei der die Polymerisationsaktivität ein umgekehrtes Verhalten zeigte. Der Initiierungsmechanismus wird diskutiert.
    Notes: The polymerization of acrylonitrile (AN) and of methyl methacrylate (MMA) initiated by various copper(II) chelates was studied in the presence of carbon tetrachloride. Several vinylamine (VAm)/vinyl alcohol (VA) copolymers with different contents of NH2 and OH bearing monomeric units were chosen as polymer ligands as well as polyvinylamine (PVAm)/poly(vinyl alcohol) (PVA) mixtures (of equal NH2 and OH group contents as the corresponding copolymers), PVAm, and PVA. The activity of the used polymer chelates to initiate the AN and the MMA polymerization was compared at various pH values of the reaction systems. For the polymerization of MMA, the VAm/VA copolymer systems showed a higher activity than the PVAm chelate containing the same amount of NH2 groups, contrary to the case of the polymerization of AN, where the polymerization activity showed a reverse behavior. The initiation mechanism is discussed.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1975.021760806
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  • 9
    Electronic Resource
    Electronic Resource
    Synthesis and polymerization of benzyl 2-(methacryloyloxy)ethyl hydrogen phosphate (1975)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 176 (1975), S. 1945-1951 
    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 Darstellung und Charakterisierung von Benzyl-2-(methacryloyloxy)äthylhydrogen-phosphat (8) werden beschrieben. Das Monomere wurde in Gegenwart von 2,2′-Azoisobutyronitril (AIBN) zu Poly{1-[2-(benzylhydrogenphosphato)äthyloxycarbonyl]äthylen}, (9) polymerisiert, dessen Eigenschaften ebenfalls beschrieben werden.
    Notes: The preparation and characterization of benzyl 2-(methacryloyloxy)ethyl hydrogen phosphate (8) are described. This monomer was polymerized in the presence of 2,2′-azoisobutyronitrile (AIBN) to give poly{1-[2-(benzylhydrogenphosphato)ethyloxycarbonyl]-ethylene}, (9), whose properties are also described.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1975.021760704
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  • 10
    Electronic Resource
    Electronic Resource
    Effect of some molecular parameters on the flexural properties of injection-molded polypropylene (1977)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 21 (1977), S. 2283-2288 
    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
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1977.070210825
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