Cyclopentane-acetone mixtures

Figure 5. Viscosity corrected values for Py-PS-Py samples of = 4500 and 25,000 as a function of solvent compostion in cyclopentane-acetone mixtures.

This compound is obtained by heating a mixture of 1,1 -dimethylol cyclopentane and phenyl isocyanate at a temperature of B5°C to90°Cfor one-half hour. The resultant product is washed with petroleum ether, recrystallized from methanol, dissolved in acetone (impurities are filtered off) and recrystallized from acetone. 

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