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Method for preparing branched functionalized polymers using branched polyol cores

  • US 8,901,246 B2
  • Filed: 10/10/2013
  • Issued: 12/02/2014
  • Est. Priority Date: 07/18/2005
  • Status: Active Grant
First Claim
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1. A chromatographically purified branched polyol having the structure Y—

  • R(—

    OH)p, wherein R is a branched hydrocarbon, Y is an ionizable functional group selected from the group consisting of amine and carboxylic acid, and p is at least 2, and further wherein (i) the branched polyol has a single ionizable functional group, optionally in protected form, (ii) the polyol has a purity of at least about 83%, and (iii) the R group includes a poly(alkylene glycol) chain of 1 to about 25 monomer subunits attached to each terminal hydroxyl group.

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