Cyclopentadiene → HCID 19706219, compound

Participants

Reaction Conditions

Reaction Steps

Trimethylolpropane triacrylate (338 g, 1.0 mol) was stirred under nitrogen in a 1000 ml, four-necked, round-bottomed flask equipped with a Freidrichs condenser, a thermometer, a constant pressure addition funnel, and mechanical stirring at 40° C. Freshly cracked cyclopentadiene monomer (217 g, 3.3 mol) was added at such a rate that the temperature of the reaction slowly climbs to about 90° C. by the end of the addition. The reaction mixture was stirred at this temperature for two hours. The extent of reaction as monitored by the decrease in the infrared absorption band at 1636 cm-1. When the reaction was judged to be complete (no change in the infrared absorption), excess cyclopentadiene was removed by vacuum concentration of the resin. The yield of resin is 534 g.

Provenance & Evidence