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  • 1
    Electronic Resource
    Electronic Resource
    Starch-filled polyethylene in a composting environment: Evidence for polyethylene matrix oxidation (1993)
    Springer
    Journal of polymers and the environment 1 (1993), S. 167-170 
    Details
    ISSN: 1572-8900
    Keywords: Polyethylene-starch ; composting degradation ; polyethylene microbial oxidation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Two series of starch-filled polyethylene films, consisting of high-density or low-density polyethylene and 0–20% starch, have been exposed for 60 days to a controlled composting environment. Evidence is reported that the oxidation of the polyethylene matrix is dependent upon the polyethylene type and content of starch.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01418209
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Symmetric Block Oligomers. Gelation characteristics by DSC (2000)
    Springer
    Journal of thermal analysis and calorimetry 61 (2000), S. 551-564 
    Details
    ISSN: 1572-8943
    Keywords: amphiphile oligomers ; DSC ; thermo-reversible gelation ; water states
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Symmetrical block oligomers having in common terminal groups (A) consisting of polyoxyethylene (20) stearyl ether are materials of pharmaceutical and cosmetic interest. Phase properties of their aqueous systems and amounts of water typologies were determined by differential scanning calorimetry (DSC). The overall amount of water absorbed by each investigated oligomer was not significantly influenced by the type of central bridging block, whereas the amount of free water decreased with increasing oligomer concentration in the gel. A number of 60–70 moles of water was found to solvate the oligomer chain. The oligomers studied presented a thermo-reversible gelation with and precipitation under determined temperature conditions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1010133904733
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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