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A rapid method for the NMR-measurement of two-phase polymers

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  • Polymer Science
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Summary

A rapid method is described to measure the proton fraction and the spin spin relaxation time of the mobile phase of two-phase polymers in a temperature range where one phase is rigid (hard phase) and the other shows molecular motion (soft phase). The method is based on the free induction decay (FID), following a 90°-pulse. It is not suitable to partially crystalline polymers.

Zusammenfassung

Es wird eine Schnellmeßmethode zur Bestimmung des Protonenanteils und der Spin-Spin-Relaxationszeit der molekular beweglichen Phase von zweiphasigen Polymeren beschrieben, die für einen Temperaturbereich gilt, in dem die eine Phase (Hartphase) unbeweglich und die andere Phase (Weichphase) beweglich ist. Die Methode beruht auf dem Magnetisierungsabfall (FID), der einem 90°-Impuls folgt. Sie ist nicht auf partiell-kristalline Polymere anwendbar.

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Authors and Affiliations

  1. Mess- und Prüflaboratorium, BASF Aktiengesellschaft, D-6700, Ludwigshafen

    K. Bergmann & H. Schmiedberger

Authors
  1. K. Bergmann
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  2. H. Schmiedberger
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Dedicated to Professor Dr.Matthias Seefelder on the occasion of his 60th birthday

With 1 figure and 2 tables

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Bergmann, K., Schmiedberger, H. A rapid method for the NMR-measurement of two-phase polymers. Colloid & Polymer Sci 258, 24–26 (1980). https://doi.org/10.1007/BF01474950

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  • DOI: https://doi.org/10.1007/BF01474950

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