PREPARATIONS OF PROPYLENE AND ETHYLENE IONOMERS WITH SOLVAY-TYPE TICL3 CATALYST

Terpolymerizations of pylene/1-hexene/ethylchloroaluminum-10-undecenoa te (ECAU) and ethylene/1-hexene/ECAU systems were carried out with Sol vay-type TiCl3 and diethylaluminum chloride to prepare the propylene i onomer and ethylene ionomer, respectively. By adding 1-hexene, the ECA U contents of polymer could be enhanced. The acid contents of the prop ylene terpolymer was higher than that of the etylene one. This indicat ed polar monomer (ECAU) was incorporated more easily into propylene-ba sed polymer chain. With increasing ECAU in both systems, the rate of t erpolymerization decreased while the induction periods of polymerizati on increased. The propylene terpolymer salts exhibited higher T-m and T-c than the acid form of terpolymers due to the ionic cross-linking o f terpolymer salts.