Gaois

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  1. SCIENCE|natural and applied sciences|physical sciences|chemistry

    #635965

    IATE #1867261
    innéacs poileasrachta Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    Polydispersität | PDI | Polymolekularität | Heterogenitätsindex | Polydispersitätsindex | Polymolekularitätsindex
    de
    Definition Maß für die Verteilungsbreite der Molmassen innerhalb eines Polymers Reference "auf der Grundlage von Lohmann Claudia A., ""Charakterisierung von ionischen und nicht ionischen Polymeren im Hinblick auf ihre Anwendung"", Dissertation, Universität Hamburg, 2006, S. 26/27, http://deposit.ddb.de/cgi-bin/dokserv?idn=982360150&dok_var=d1&dok_ext=pdf&filename=982360150.pdf (10.08.2010)"
    Comment "Die Polydispersität entspricht dem Quotienten aus Mw (gewichtsmittlere Molmasse) und Mn (zahlenmittlere Molmasse).Quelle: Lohmann Claudia A., ""Charakterisierung von ionischen und nicht ionischen Polymeren im Hinblick auf ihre Anwendung"", Dissertation, Universität Hamburg, 2006, S. 26/27, http://deposit.ddb.de/cgi-bin/dokserv?idn=982360150&=d1&=pdf&=982360150.pdf (10.08.2010)."
    polydispersity index | PDI | dispersity
    en
    Definition a measure of the distribution of molecular mass in a given polymer sample Reference "Wikipedia, Polydispersity index http://en.wikipedia.org/wiki/Polydispersity_index [19.1.2010]"
    Comment "The PDI calculated is the weight average molecular weight divided by the number average molecular weight. It indicates the distribution of individual molecular masses in a batch of polymers. The PDI has a value equal to or greater than 1, but as the polymer chains approach uniform chain length, the PDI approaches unity (1). For some natural polymers PDI is almost taken as unity. The PDI from polymerization is often denoted as:PDI=Mw/MnSee also: IATE:1075861 IATE:1075862 and IATE:1229322"