Process to Produce Functionalized Polymer
AssigneeExxonMobil Chemical Patents Inc.
InventorsYong Yang, Jay L. Reimers
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Abstract
This invention relates to a process to produce a functionalized polymer comprising: a) contacting an iodine modified aromatic polymer with an oxidizing agent to obtain an iodonium salt of the aromatic polymer; b) contacting the iodonium salt of the aromatic polymer with a polymer having internal or terminal unsaturation(s); and c) obtaining a functionalized polymer from the polymer having internal or terminal unsaturation(s) wherein the functionalized polymer has an Mn less than the Mn of the polymer having internal or terminal unsaturation(s) and the functionalized polymer has an acid number higher than the acid number of the polymer having internal or terminal unsaturation(s).
Claims31
A process to produce a functionalized polymer comprising:
- a) contacting an iodine modified aromatic polymer with an oxidizing agent to obtain an iodonium salt of the aromatic polymer;
- b) contacting the iodonium salt of the aromatic polymer with a polymer having internal or terminal unsaturation(s);
- and
- c) obtaining a functionalized polymer from the polymer having internal or terminal unsaturation(s) wherein the functionalized polymer has an Mn less than the Mn of the polymer having internal or terminal unsaturation(s) and the functionalized polymer has an acid number higher than the acid number of the polymer having internal or terminal unsaturation(s).
A process to produce a functionalized polymer comprising:
- 1) contacting a first polymer having internal or terminal unsaturation(s), said first polymer having an Mn of at least 50 g/mol as determined by GPC, with a complexing agent and an oxidizing agent to obtain a second polymer having internal or terminal functionality and an Mn of the same of 90% or less than the first polymer;
- and
- 2) contacting the second polymer with an oxidizing agent comprising an iodine containing compound and an optional phase transfer catalyst to obtain a cleaved functionalized polymer having an Mn less than that of the Mn of the first polymer.
A process to produce a functionalized polymer comprising contacting a first polymer comprising a vinyl terminated macromonomer having an Mn of at least 50 g/mol as determined by GPC with an oxidizing agent comprising an iodine containing compound and an optional phase transfer catalyst to obtain a functionalized polymer.
Dependencies are inferred from the claim text.