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  • 1
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Macromolecules 17 (1984), S. 611-614 
    ISSN: 1520-5835
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Polymer bulletin 5 (1981), S. 569-576 
    ISSN: 1436-2449
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary Solution properties of styrene/di-n-butyl itaconate (SDBI), styrene/di-n-hexyl (SDHI) and styrene/di-n-octyl itaconate (SDOI) copolymers from the entire range of copolymer compositions were investigated on series of fractions of uniform composition. Kuhn-Mark-Houwink-Sakurada (KMHS) constants were extrapolated to K⊖ and all results combined with those of styrene/dimethyl itaconate (SDMI) from a previous publication. The σ-parameters describing short range interactions deviate increasingly from the linear summation of parent homopolymer contributions.The excess unperturbed dimensions are correlated with parent homopolymer solubility parameters and discussed in terms of hetero-contacts in the copolymer chain.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Polymer bulletin 32 (1994), S. 169-172 
    ISSN: 1436-2449
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Summary Poly(itaconic acid) (PIA) was obtained indirectly, by the hydrolysis of PIA esters and directly by the polymerization of itaconic acid in water or methanol at 30°C. The first method was not satisfactory but the second gave better results. The elemental composition of the synthetized samples deviated very little from the calculated values. Several crude polymers were fractionated in methanol/isopropanol and the fractions characterized by viscosity and light scattering. The statistically calculated LVN/MW relation, valid for the undissociated polymer, was treated according to the method of Stockmayer and Kurata, to calculate the unperturbed dimensions and to compare them with those of other polymers.
    Type of Medium: Electronic Resource
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  • 4
    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: Brechungsinkremnte von elf verschieden Di-n-alkylitakonat-Polymeren wurden systematisch in sieben organischen Lösungsmitteln bestimmt, um eine günstige Auswahl für Lichtstreuungs- und andere Lösungseigenschaftsmessungen zu ermöglichen. Polydimethylitakonat war in sechs von 13 untersuchten Lösungsmitteln lölich, während höhere Glieder der Polymerenreihe bedeutend bedeutend bessere Löslichketiten aufwiesen. Die ermittelten dn/de Werte in Butanon, Äthyl- und Amylacetat hängen praktisch von einer Zunahme der Zahl der Kohlenstoffatome in den Estersubstituenten nicht ab; bei Lösungsmitteln mit höheren Brechungsindizes ist aber eine sinkende Tendenz der Werte bemerkbar. Bei statistischen Copolymeren aus Styrol und Di--alkylitakonat wird der additive Charakter von dn/dc in Butanon und Toluol bemerkbar, welcher durch Bestimmung der chemischen Zusammensetzung mittels UV und Kohlenstoffgehalt bestätigt werden konnte.
    Notes: Refractive index increments of 11 poly(di-n-alkylitaconate) polymers were determined systematically in seven organic solvents, expected to be suitable for light scattering and other solution property measurements. Of 13 solvents tried, poly(dimethylitaconate) was soluble only in 6, however higher members of the polymer series exhibit better solubility. The measured dn/dc values in butanone and ethyl-and amylacetate are practically independent of an increase of the number of carbon atoms in the ester substituents of the monomer, however a decrease of the values for solvents with higher refractive indices can be observed. For statistical poly(styrene-co-di-n-alkylitaconate) samples the additive character of dn/dc in butanone and toluene was observed and verified from copolymer compositions determined by UV and elemental analysis.
    Additional Material: 3 Ill.
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  • 5
    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: Um die nötigen Voraussetzungen für Untersuchungen über Lösungseigenschaften von Poly(di-n-alkylitakonaten) festzustellen, wurde die Löslichkeit der 11 ersten Glieder dieser polymerhomologen Reihe in 70 Lösungsmitteln untersucht und die Ergebnisse mit der Länge der Estersubstituenten, den Lösungsparametern der Lösungsmittel und deren Wasserstoffbrückenbildungsvermögen in Zusammenhang gebracht. Das Verhältnis zwischen der Güte einiger Lösungsmittel und der Länge der Estersubstituenten der Monomeren wurde quantitativ durch ϕ2 crit., das Fällungsmittelvolumen in Polymer-Lösungsmittel-Fällungsmittel-θ-Mischungen, ausgedrückt, welches turbidometrisch nach ELIAS1 bestimmt wurde. Die Ergebnisse dienen auch als Hinweis für das wahrscheinliche Vorkommen von θ-Temperaturen für bestimmte Polymere/Lösungsmittel-Paare und erlauben Voraussagen über die Löslichkeit noch höherer Glieder der Polymerenreihe.
    Notes: In order to establish the prerequisites for the examination of solution properties of poly(di-n-alkyl itaconates), the solubilities of the first 11 members of this polymer homologous series were determined in 70 solvents, and the results correlated with the lengths of the ester substituents of the polymer chain, the solvent solubility parameters and the solvent hydrogen bonding capacities. The relation between solvent strength and the lengths of ester substituents of the monomer units was established quantitatively for several solvents in terms of ϕ2 crit., the nonsolvent volume fraction in ternary polymer-solvent-nonsolvent θ-mixtures, and evaluated according to a turbidometric titration method proposed by ELIAS1. Both groups of results are a guideline for the probable existance of θ-conditions for particular polymer-solvent pairs and permit the prediction of solubilities of still higher members of the series.
    Additional Material: 2 Ill.
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Angewandte Makromolekulare Chemie 57 (1977), S. 139-152 
    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: Die Lösungsparameter der zehn ersten Glieder der homologen Reihe von Poly(di-n-alkylitakonaten) wurden aus den Grenzviskositätszahlen in verschiedenen organischen Lösungsmitteln von unterschiedlichem Aufbau, Polarität und Vermögen zur Wasserstoffbrückenbindung bestimmt. Numerische Werte von 9,58 bis 8,10 (cal/cm3)1/2 wurden unabhängig voneinander aus Kohlenwasserstoffen und sauerstoffenthaltenden Lösungsmitteln ermittelt, in Übereinstimmung mit Lösungsparametern, errechnet aus den molaren Anziehungskonstanten und den Dichten der Polymeren. Die Ergebnisse sind die Folge des Zuwachses des paraffinischen Charakters der Reihe und können leicht mit den aus der Literatur bekannten Lösungsparametern für die aufbauartig verwandten Poly(alkylacrylate) und Poly(alkylmethacrylate) in Verbindung gebracht werden.
    Notes: The solubility parameters of the first ten members of the homologous series of poly(di-n-alkyl itaconates) were determined from limiting viscosity numbers in various organic solvents, differing in structure, polarity and hydrogen bonding capacity. Numerical values from 9.58 to 8.10 (cal/cm3)1/2 were obtained independently from measurements in hydrocarbon and oxygen containing solvents, close to solubility parameters calculated from polymer densities and molar attraction constants. The values obtained reflects the increasing paraffinic character within the series and can be correlated to solubility parameters published in the literature for structurally similar poly(alkyl acrylates) and poly(alkyl methacrylates).
    Additional Material: 5 Ill.
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  • 7
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Die Makromolekulare Chemie 185 (1984), S. 569-578 
    ISSN: 0025-116X
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The diesters of itaconic acid (methylenesuccinic acid) with higher C12 - C20 unbranched, saturated, aliphatic alcohols were prepared, purified, and polymerized in bulk or in solution with 2,2′-azoisobutyronitrile as initiator. The transparent to waxy polymers obtained were fractionated and all fractions characterized by viscosity and light scattering measurements. The Kuhn-Mark-Houwink-Sakurada relations were established and then extrapolated to thetaconditions, in order to calculate the unperturbed dimensions. High values of the steric factor σ, and the characteristic ratio C∞ were obtained. The results correlate well with those obtained previously for poly(di-n-alkyl itaconate)s from the corresponding lower C1 - C11 alcohols.
    Additional Material: 4 Ill.
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  • 8
    Publication Date: 1984-07-01
    Print ISSN: 0024-9297
    Electronic ISSN: 1520-5835
    Topics: Chemistry and Pharmacology , Physics
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  • 9
    Publication Date: 1994-02-01
    Print ISSN: 0170-0839
    Electronic ISSN: 1436-2449
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Published by Springer
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  • 10
    Publication Date: 2012-08-28
    Print ISSN: 0170-0839
    Electronic ISSN: 1436-2449
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Published by Springer
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