title: Convergent synthesis of internally branched PAMAM dendrimers.
abstract: [reaction: see text] A series of aliphatic internally branched poly(amido amine) dendrons and dendrimers has been synthesized. The internal branching unit was 1,2-propanediamine and a series of PAMAM-type dendrons of the types AB2, AB4, and AB8 were built. These were anchored on a core molecule containing four carboxylic acid moieties and the 1,2-propanediamine unit resulted in PAMAM dendrimers with 4, 8, 16, and 32 end groups.
authors.affiliation: Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100, Denmark.
authors.forename: Michael
authors.initials: M
authors.lastname: Pittelkow
authors.forename: Jørn B
authors.initials: JB
authors.lastname: Christensen