Octadecyl isocyanate → HCID 86737117, compound

Participants

Reaction Steps

Following the general procedure of Example 1, the above-formed dodecadiyn-ol-isopropylurethane was reacted with n-octadecylisocyanate to form 5,7-dodecadiyn-1,12-diol n-octadecylisopropylurethane (VII) which had a melting point of 105°-108° C. The material was recrystallized from acetone to yield a blue powder with melting point 110°-111° C. The brown-black powder, which was obtained by irradiating the n-octadecylisopropylurethane of 5,7-dodecadiyn-1,12-diol with 50 Mrads of γ-radiation, exhibited thermochromic behavior after the as-polymerized material was extracted with acetone. The thermochromic behavior was evidenced on a Fisher-Johns melting point apparatus in which the thermochromic transition from a brown-black to a dark red was observed at 180°-205° C. This color change was reversible over many cycles observed for the polymer.

Provenance & Evidence