Web Release Date: December 12,
Efficient Synthesis of First- and Second-Generation, Water-Soluble Dendronized Polymers
Institute of Polymers, Department of Materials, ETH Zurich, Wolfgang-Pauli-Strasse 10, HCI J 541, 8093 Zurich, Switzerland
Received September 7, 2007
Revised Manuscript Received November 5, 2007
Abstract:
The first and second generation neutral, water-soluble dendronized polymethacrylates PG1 and
PG2, respectively, carrying hydroxyl groups in the periphery are reported. The threefold branched repeating unit
of the dendrons are synthesized on the multigram scale using gallic acid as the branching point and tri(oxyethylene)
(TEG) units as the linker. All dendrons and their corresponding macromonomers carry either free or THP-protected
hydroxyl groups in the periphery. PG1 and PG2 were obtained by radical polymerization in bulk, in DMF, as
well as in aqueous solution. The polymerization of the hydroxyl-terminated G1 monomer 3b proceeded at an
exceptionally high rate in water. All polymers have high molar masses and are fully water-soluble. Their glass
transition temperatures are in the range of -50 to -40 
C.
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