Figure 39.
Preparation well-defined liquid crystal gels from telechelic ROMP polymers. (1) Ru-2-I, dichloroethane, 1,8-dibromo-4-octene, 55°C, 24 hr. (2) NaN3, DMF. (3) Triacetylene, tripropylargylamine, cat. CBr, PMDETA, DMF, 5 min (gelation) + 2 days (curing at 50°C).