A process of making a polymer is described. The process includes contacting one or more olefinic monomers in the presence of at least a high molecular weight (HMW) catalyst and at least a low molecular weight (LMW) catalyst in a polymerization reactor system; and effectuating the polymerization of the one or more olefinic monomers in the polymerization reactor system to obtain an olefin polymer, wherein the LMW catalyst has an R
v
L
, defined as
R
v
L
=
[
vinyl
]
[
vinyl
]
+
[
vinylidene
]
+
[
cis
]
+
[
trans
]
wherein [vinyl] is the concentration of vinyl groups in the olefin polymer produced by the low molecular weight catalyst expressed in vinyls/1,000 carbon atoms; [vinylidene], [cis] and [trans] are the concentration of vinylidene, cis and trans groups in the olefin polymer expressed in the number of the respective groups per 1,000 carbon atoms, of greater than 0.12, and wherein the HMW catalyst has a reactivity ratio, r1 of about 5 or less.
描述了一种制造聚合物的过程。该过程包括在聚合反应器系统中,在至少高分子量(HMW)催化剂和至少低分子量(LMW)催化剂的存在下,接触一种或多种烯烃单体;并在聚合反应器系统中促进一种或多种烯烃单体的聚合,以获得烯烃聚合物,其中LMW催化剂具有RvL,定义为RvL=[
乙烯][
乙烯]+[
乙烯基]+[顺式]+[反式],其中[
乙烯]是以vinyls/1,000碳原子表示的低分子量催化剂生产的烯烃聚合物中
乙烯基的浓度;[
乙烯基]、[顺式]和[反式]是以每1,000个碳原子中各自组分的数量表示的烯烃聚合物中
乙烯基、顺式和反式基团的浓度,大于0.12;而HMW催化剂具有反应比r1约为5或更低。