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  • 1985-1989  (6)
  • 1975-1979  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Blends of chlorinated isotactic polypropylene with poly(ethylene-co-vinyl acetate) IIPart I, cf.1.. Phase studies of the miscible blends (1989)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 165 (1989), S. 89-95 
    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: Durch Messungen von Tg, Tm und Tc (Trübungspunkt) wurden Phasendiagramme der vier verträglichen Polymermischungen von chlorierten isotaktischen Polypropylenen (Chlorgehalt 39,2 (CPP-40) und 49,8 Gew.-% (CPP-50)) mit Poly(ethylen-co-vinylacetat)en (Vinylacetatgehalt 40 (EVA-40) und 45 Gew.-% (EVA-45)) untersucht. Von den vier Mischungspaaren war die Mischung von CPP-50 mit EVA-40 am besten verträglich.
    Notes: By measuring Tg, Tm and Tc (cloud point) phase diagrams for the four miscible blends of chlorinated isotactic polypropylenes (chlorine content 39.2 (CPP-40) and 49.8 wt.-% (CP-50)) with Poly(ethylene-co-vinyl acetate)s (vinyl acetate contents 40 (EVA-40) and 45 wt.-% (EVA-45)) were investigated. The blend of CPP-50 with EVA-40 was the most compatible of the four blend pairs.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1989.051650108
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  • 2
    Electronic Resource
    Electronic Resource
    Vernetzte polymere mit spaltbaren netzbrücken, 5.Part 4: cf. D. Braun, W. Brendlein, L. Pandjojo, Makromol. Chem. 178, 669 (1977). Homopolymerisation von 4-vinylbenzoesäureanhydrid (1977)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 178 (1977), S. 2515-2526 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The kinetics of the crosslinking homopolymerization of symmetrical diolefines with independent double bonds is described. Experiments are carried out with 4-vinylbenzoic anhydride. The experimental results are compared with the theory and the discrepancy is discussed.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1977.021780903
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  • 3
    Electronic Resource
    Electronic Resource
    Synthesis and characterization of processable conducting polyazomethines (1989)
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 190 (1989), S. 1547-1552 
    Details
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: A series of the wholly aromatic polyazomethines (PAM) having flexible side chains was synthesized by solution and melt polycondensation of 2,5-dialkoxyterephthalaldehydes and aromatic diamines. The solution polycondensation was carried out at 80°C for 24 h in 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone (DMPU)/N-methyl-2-pyrrolidone (NMP) mixtures. The melt polycondensation was conducted in N2 atmosphere at 200°C for 2,8 h. All of the polymers were soluble in CCl4, CHCl3, THF, benzene, toluene, etc. The inherent viscosity (ηinh), measured at 30°C in CHCl3, was 0,13-0,32 dL/g, and 5% weight loss in TG curves appeared at 365-390°C in N2 atmosphere. The electrical conductivities of I2-treated dialkoxy-substituted PAM were low, 10-4 〈 σ 〈 10-6 S/cm, compared with unsubstituted I2-treated PAM.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/macp.1989.021900706
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  • 4
    Electronic Resource
    Electronic Resource
    Synthesis and properties of polysulfonamides containing thiophene links (1988)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part A: Polymer Chemistry 26 (1988), S. 1507-1517 
    Details
    ISSN: 0887-624X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: In order to study the synthesis and properties of polysulfonamides containing thiophene links, 2,2-bis(5-chlorosulfonyl-2-thienyl)propane [BCTP], 2,2-bis(5-chlorosulfonyl-2-thienyl)butane [BCTB], 1,1-bis(5-chlorosulfonyl-2-thienyl)cyclohexane [BCTC], and 2,4-dichlorosulfonyl thiophene [DCST] were prepared and interfacial polycondensations with various aliphatic diamines were carried out. The resulting polymers had inherent viscosities in the range of 0.13-0.41 dL/g and showed high extent of moisture absorptions. Most of the polysulfonamides were soluble in electron-donating solvents such as pyridine, DMF, DMSO, NMP, etc. These polysulfonamides exhibited relatively good thermal stabilities. The TGA data revealed 5% weight losses at 275-405°C and residual weights at 500°C were 13-40% under nitrogen. It was also found that dithienyldisulfonyl chlorides produced more thermally stable polymers than DCST, which were comparable to common polysulfonamides from aromatic disulfonyl chlorides.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pola.1988.080260602
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  • 5
    Electronic Resource
    Electronic Resource
    Synthesis and properties of polyketones containing thiophene links (1989)
    Bognor Regis [u.a.] : Wiley-Blackwell
    Journal of Polymer Science Part A: Polymer Chemistry 27 (1989), S. 2417-2426 
    Details
    ISSN: 0887-624X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A series of polyketones containing thiophene links was synthesized by the Friedel-Crafts polymerization of these dithienylalkanes with aromatic diacid chlorides or dicarbonyl chlorides comprising thiophene links with diphenyl compounds. The resulting polymers had inherent viscosities in the range of 0.11-0.27 dL/g and showed poor solubilities to common organic solvents except strong acids. These thiophene-based polyketones exhibited fairly good thermal stabilities. The TGA data revealed 5% weight losses at 375-450°C and residual weights at 500°C were 43-79% under nitorgen. It was found that the thermal stabilities of these polymers were superior to those of polymides or polysulfonamides containing thiophene links and almost comparable to common aromatic polyketones
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pola.1989.080270722
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  • 6
    Electronic Resource
    Electronic Resource
    A novel synthesis of polysulfide by phase transfer-catalyzed terpolymerization of malononitrile, carbon disulfide, and α,α′-dichloro-p-xylene (1988)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Letters Edition 26 (1988), S. 83-87 
    Details
    ISSN: 0887-6258
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1988.140260204
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  • 7
    Electronic Resource
    Electronic Resource
    Blends of chlorinated isotactic polypropylene with poly(ethylene-co-vinyl acetate) I. Effect of component polymers composition on the blend miscibility (1988)
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 164 (1988), S. 171-180 
    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: Chlorierte isotaktische Polypropylene (CPP) mit verschiedenen Chlorgehalten wurden mit Poly(Ethylen-co-Vinylacetat)en (EVA) mit verschiedenen Vinylacetat (VA)-Gehalten gemischt. Die Polymermischungen wurden durch Filmgießen aus verdünnten THF-Lösungen hergestellt; die Verträglichkeit der Polymermischungen wurde durch eine einzige Glasübergangstemperatur identifiziert, die durch DSC und dynamisch-mechanische Messungen festgestellt wurde.Basierend auf den Verträglichkeitsdaten einer Vielzahl von CPP/EVA-Kombinationen wurde ein Verträglichkeitsplan aufgestellt, in dem das CO-Äquivalentgewicht (CO-EQW) gegen das Äquivalentgewicht des Chlors (Cl-EQW) aufgetragen wurde.Obwohl eine einander anziehende Wechselwirkung zwischen CPP und EVA in allen mischbaren und unverträglichen Mischungspaaren nachgewiesen werden konnte, konnte eine Mischbarkeit nur in einem relativ engen Bereich von C1-EQW ca. 65-100 und CO-EQW ca. 170-230 beobachtet werden.
    Notes: Chlorinated isotactic polypropylenes (CPP) having various chlorine contents were blended with poly(ethylene-co-vinyl acetate)s (EVA) having various vinyl acetate (VA) contents. The blends were made by casting films from dilute THF solutions and miscibility of the blends was identified by single glass transition temperature, which was confirmed by DSC and dynamic mechanical measurements. Based on the miscibility data from a large number of CPP/EVA combinations, a miscibility map was depicted where CO equivalent weight (CO-EQW) of EVA was plotted against chlorine equivalent weight (Cl-EQW) of CPP.Though an attractive interaction between CPP and EVA could be detected in all the miscible and immiscible blend pairs, miscibility of the CPP/EVA blends could solely be observed in a relatively narrow range of Cl-EQW ca. 65-100 and CO-EQW ca. 170-230.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/apmc.1988.051640113
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