1,5-Cyclooctadiene extractable macrocyclics

Figure 4. Comparison of chromatograms of 1,5-cyclooctadiene extractable macrocyclics with standard reference materials...

Figure 7. Comparison of 1,5-cyclooctadiene extractable macrocyclics obtained by catalyst treatment of high molecular weight poly-1,5-octadiena-mer with extractable macrocyclics obtained during 1,5-cyclooctadiene...

Low Voltage Mass Spectrometry of Macrocyclic Extractables. Nominal parent mass analyses of the macrocyclic extractables, obtained from typical polymerization products of cyclooctene and 1,5-cyclooctadiene, were performed on a Model MS-9 double focusing mass spectrometer (Associated Electrical Industries, England) at a resolution of 1/1000 and an emission of 7.0 e.v. Samples were introduced directly into the source chamber by the direct-probe technique. The temperature range during the experiment was 125°-200°C., and the source pressure was maintained in the 0.1-3 X 10-6 torr range. In addition, a high resolution measurement was carried out on the mass number 220 to identify the two components present at that mass number. 

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See also in sourсe #XX -- [ ]

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