Preparation of vinyl-containing macromers

A method for preparing a composition of matter comprising contacting one or more olefin monomers with a catalyst solution composition containing a transition metal catalyst compound and an alumoxane wherein the aluminum to transition metal ratio is from 10:1 to 220:1 wherein the composition of matter comprises:

• (a) vinyl ended olefin copolymer chains having a number average molecular weight (Mn) of about 1500 to 25,154, the number average molecular weight being determined by gel permeation chromatography (GPC) at 145° C.;
• (b) a ratio of vinyl groups to total olefin groups according to the formula:
• (vinyl groups/olefin groups)>(comonomer mole percentage+0.1)a×10a×b (1)
• where a and b have the following sets of values:
• (i) when a=−0.24, b=0.8;
• (ii) when a=−0.20, b=0.8;
• (iii) when a=−0.18, b=0.83;
• (iv) when a=−0.15, b=0.83;
• or
• (v) when a=−0.10;
• b=0.085;
• wherein
• the total number of vinyl groups per 1000 carbon atoms is greater than or equal to 8000÷Mn;
• wherein the number of vinyl groups is determined by 1H-NMR at 125° C.;
• and
• wherein Mw/Mn ranges from 2.083 to 5.666.