ACTIVITIES OF BUTADIENE POLYMERIZATION USING PHENOXY NEODYMIUM DICHLORIDE TETRAHYDROFURAN AND NEODYMIUM TRICHLORIDE PHENOL COMPLEXES COMBINED WITH ALUMINIUM ALKYLS
一苯氧基二氯化钕四氢呋喃络合物和三氯化钕酚合物对丁二烯聚合的催化活性

C6H5ONdCl2 · nTHF (THF= n = 0, 1, 2) and NdCl3 · HOAr (HOAr =combined with aluminium alkyls are highly active for butadiene polymerization.In C6H5 ONdCl2 · nTHF-AlR3 system the activities increase with the increase in the coordination number of THF. In NdCl3 · HOAr-AlR3 the polymerization activities of variousphenols are in the following order:The polymerization rate is the first order with respect to the monomer concentration in C6H5ONdCl2 · 2THF-Ali-Bu2H. The plot of the conversion vs polymerization time is linear. The n] of polymer decreases with the increase in the conversion of butadiene.