Cyclooctene extractable macrocyclics

Figure 6. Comparison of cyclooctene extractable macrocyclics obtained by catalyst treatment of high molecular weight polyoctenamer with extractable macrocyclics obtained during cyclooctene polymerization...

CO Polymerization Effect of Conversion on Low Molecular Weight Macrocyclics. A series of polymerizations of cyclooctene was carried out in a manner similar to that described above, using a constant monomer concentration of 1.57M. The polymerizations were terminated at various reaction times, thus obtaining different conversions. The products were isolated, processed, and analyzed for percent extractable macrocyclics as described previously. 

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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