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  • Polymer and Materials Science  (13)
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Keywords
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  • 1
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Chemistry Edition 23 (1985), S. 2779-2790 
    ISSN: 0360-6376
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: High-molecular-weight, film-forming, amorphous polyamides have been prepared from 2,6(7)-diamino-9,10-dihydro-9,10-ethanoantracene with adipic, sebacic, dodecanoic, isophthalic, 4,4′-oxybibenzoic, 2,6-naphthoic, 4,4′-bibenzoic, and terephthalic acid. Thermal elimination of ethylene from these polymers has yielded the corresponding polyamides from 2,6(7)-diaminoanthracene which were of high molecular weight, film forming, and crystalline.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Chemistry Edition 23 (1985), S. 2791-2802 
    ISSN: 0360-6376
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: High molecular weight, film-forming, amorphous polyesters have been prepared from 2,6-dilydroxy-9,10-dihydro-9,10-ethanoanthracene with adipic, sebacic, dodecanoic, isophthalic, 4,4′-oxybibenzoic, 2,6-naphthoic, 4,4′-bibenzoic, and terephthalic acid. Thermal elimination of ethylene from these polymers has yielded the corresponding polyesters from 2,6-dihydroxyanthracene which were of high molecular weight, film forming, and crystalline.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 13 (1969), S. 1577-1577 
    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
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Journal of Polymer Science Part A-1: Polymer Chemistry 7 (1969), S. 2464-2464 
    ISSN: 0449-296X
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Journal of Polymer Science Part A: General Papers 2 (1964), S. 1147-1156 
    ISSN: 0449-2951
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: High-molecular weight aromatic polyhydrazides have been prepared by using isophthalic, terephthalic, isocinchomeronic, dipicolinic, 5-chloroisophthalic, 2,5-dichloroterephthalic, 5-tert-butylisophthalic, phenyl ether-4,4′-dicarboxylic, pyrazine-2,5-dicarboxylic, and thiophene-2,5-dicarboxylic acid as polymer intermediates. The polyhydrazides were prepared from equimolar amounts of diacid chloride and dihydrazide (or hydrazine) in hexamethylphosphoramide at room temperature. By contrast to aliphatic polyhydrazides, aromatic polyhydrazides were soluble in dimethyl sulfoxide and with few exceptions had polymer melt temperatures in the range of 350-400°C. Inherent viscosities ranged from 0.30 to 1.00 (in dimethyl sulfoxide). Tough films and strong fibers of these polymers could be fabricated.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Journal of Polymer Science Part A: General Papers 2 (1964), S. 1181-1183 
    ISSN: 0449-2951
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Poly(3,4-isophthaloyl-1,3,4-oxadiazolidine) was prepared from poly(isophthalic dihydrazide) by treatment by reaction with formic acid in dimethylsulfoxide as high-molecular weight film-forming polymer. Under thermal treatment with the evolution of formaldehyde and water, high yields of chemically pure poly[1,3-phenylene-2,5-(1,3,4-oxadiazole)] were obtained.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Journal of Polymer Science Part A: General Papers 2 (1964), S. 1171-1179 
    ISSN: 0449-2951
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: A polyoxidiazole fiber, alt. poly[1,3-/1,4-phenylene-2,5-(1,3,4-oxadiazole)], with excellent thermal stability was prepared from poly(isophthalic-terephthalic hydrazide) fiber by thermal cyclodehydration. Conversion of this polyhydrazide fiber proceeded at 280°C. in a muffle furance under positive nitrogen pressure and was completed in 48-72 hr., as evidenced by elemental analyses. The resulting polyoxadiazole fiber had the following typical fiber properties: T/E/Mi/den. = 2.6/3.1/124/3.1. It was thermally stable when exposed for prolonged periods of time at temperatures of 400°C. During heat treatment between 300 and 400°C. the initial polyoxadiazole fiber undergoes a structural change and final properties were: T/E/Mi/den. ∼ 1.5/1.5/90/3.0. The polyoxadiazole structure was found to degrade severely at 450°C.
    Additional Material: 2 Ill.
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  • 8
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Journal of Polymer Science Part A: General Papers 2 (1964), S. 4031-4038 
    ISSN: 0449-2951
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The copolymer of sulfur dioxide and cis,cis-1,5-cyclooctadiene has been synthesized under a variety of conditions and pyrolyzed. Degradation of this copolymer followed first-order kinetics to a first approximation at 220°C. or above. Random cleavage of the polymer chain accompanied the pyrolysis as it was carried out in these experiments. Pyrolysis of the copolymer up to 75% loss of weight yielded the monomers as cracking products and in the mole ratio of the copolymer composition.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Journal of Polymer Science Part A: General Papers 3 (1965), S. 3699-3712 
    ISSN: 0449-2951
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: The terpolymerization of propylene, 1-butene, isobutene, and cis, cis-1,5-cyclooctadiene with sulfur dioxide and carbon monoxide at elevated temperatures and pressures has been studied. With the α-olefins, at carbon monoxide pressures of 1000 and 3000 atm. and temperatures above the ceiling temperature of the particular olefin-sulfur dioxide system, terpolymers of the olefin, sulfur dioxide, and carbon monoxide were obtained. With the diene, at these carbon monoxide pressures over a broad temperature range, similar terpolymers were obtained. All of these systems exhibited a ceiling temperature. The properties of these terpolymers were determined, and the structures and mechanism for the preparation of such structures postulated.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    New York : Wiley-Blackwell
    Journal of Polymer Science Part A: General Papers 2 (1964), S. 1137-1145 
    ISSN: 0449-2951
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: High molecular weight polyhydrazides have been prepared by a new low temperature polymerization technique from equimolar amounts of a dihydrazide and a dicarbonyl chloride in dialkyl amide solvents. All-aliphatic polyhydrazides were insoluble in dimethyl sulfoxide, had polymer melt temperatures ranging from 200 to 300°C. Films could be pressed and fibers could be pulled from the melt. Aliphatic-aromatic and oxalic-aromatic polyhydrazides which undergo dehydration at different rates had polymer melt temperatures ranging from 250 to 300°C. and inherent viscosities ranging from 0.3 to 1.5. They were soluble in dimethyl sulfoxide, a solvent from which tough films could be cast.
    Additional Material: 3 Tab.
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