Synthesis of High cis-1,4-BR with Neodymium for the Manufacture of Tires

Table 2

Microstructure of high cis-1,4-BR.

°C	0.5 mM NdV3/100 g Bd, NdV3 : DEAC = 1 : 9 mol : mol, TIBA mM
	% cis	% cis	% cis	% cis
	35	98.6	97.8	97.9	92.5
45	97.6	98.2	97.3	88.0
55	97.8	98.1	98.3	88.0
70	96.7	97.6	98.0	90.8