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  • NMR  (1)
  • Osteochondrodysplasia  (1)
  • Physics  (1)
  • cationic and photoinitiated polymerization  (1)
Source
Material
Years
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Progressive pseudorheumatoid arthritis of childhood (PPAC) (1983)
    Springer
    European journal of pediatrics 140 (1983), S. 34-40 
    Details
    ISSN: 1432-1076
    Keywords: Rheumatoid arthritis ; Chronic juvenile polyarthritis ; Collagen diseases ; Spondylarthropathies ; Osteochondrodysplasia ; Connective tissue diseases ; Platyspondyly
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Five patients are described with a hereditary arthropathy affecting major and minor joints. The main features of this progressive connective tissue disorder are restricted joint mobility, osseous swelling of the interphalangeal and other joints, and platyspondyly. The condition is commonly misdiagnosed as “chronic juvenile polyrthritis with Scheuermann disease”. It differs from the rheumatoid-factor-negative polyarticular form of rheumatoid arthritis and other rheumatoic spondylarthropathies by the absence of arthritic and other inflammatory changes, radiographically by the absence of destructive and the presence of dysplastic bone changes. The disorder does not seem to respond to the usual forms of antirheumatoid treatment. Histological studies showed a peculiar, nest-like clustering of chondrocytes in the resting and growth cartilage suggesting that pathogenetically this is a primary disorder of the articular cartilage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00661902
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Structure and Morphology of a Polyether/Polyacrylate Semi-interpenetrating Polymer Network (2000)
    Springer
    Journal of thermal analysis and calorimetry 59 (2000), S. 83-92 
    Details
    ISSN: 1572-8943
    Keywords: cationic and photoinitiated polymerization ; DSC ; interfacial mixing ; interpenetrating polymer network (IPN) ; glass transition temperature ; NMR ; quantitative thermal analysis of phases ; reactive epoxy and acrylate systems ; Tg broadening
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract In this study NMR and DSC are used to probe the structure, thermal characteristics and morphology of a network formed from a diepoxide/acrylate system. Separate chemistries are employed to polymerize the diepoxide and acrylate components. The cationic polymerization of the diepoxide exhibits excellent selectivity in producing a crosslinked polyether network without affecting the acrylate monomer. Subsequent photoinitiated free-radical polymerization of the acrylate produces a phase separated, semi-interpenetrating polymer network (SIPN).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1010123610324
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Model copolymers of ethylene with butene-1 made by hydrogenation of polybutadiene: Chemical composition and selected physical properties (1985)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Physics Edition 23 (1985), S. 509-520 
    Details
    ISSN: 0098-1273
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Hydrogenation of polybutadienes with from 8 to nearly 100% vinyl content was used to prepare a series of model copolymers of ethylene and butene-1 with uniform microstructures and narrow molecular weight distributions. They range from readily crystallizable to completely amorphous, depending on the frequency of ethyl side branches (2-50 per 100 skeletal carbons). Melting temperature, secondary transition temperature, density, plateau modulus for the melt, and elastic modulus for the solid were obtained as functions of branch content. The effect of crystallinity on the secondary transition and modulus of the solid is discussed.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1985.180230308
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    Paper (German National Licenses)
    Fulltext
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