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Preparation of multi‐arm star polymers with polylithiated carbosilane dendrimers
Author(s) -
Vasilenko Nataliya G.,
Rebrov Evgenij A.,
Muzafarov Aziz M.,
Eßwein Beate,
Striegel Bernd,
Möller Martin
Publication year - 1998
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/(sici)1521-3935(19980501)199:5<889::aid-macp889>3.0.co;2-t
Subject(s) - dendrimer , hydrosilylation , polymer chemistry , monomer , polymer , ethylene oxide , polystyrene , copolymer , chemistry , end group , materials science , organic chemistry , catalysis
Polyfunctional dendrimers are empolyed for the synthesis of multi‐arm star‐shaped polymers. Terminal allyl groups of a carbosilane dendrimer have been partly extended by hydrosilylation‐addition of didecylmethylsilane and partly lithiated by reaction with butyllithium. Due to the peculiar structure of the dendritic polylithium compounds, the carbanionic sites were screened from intermolecular interaction and did not aggregate. Good solubility and accessibility for different monomers allowed the preparation of new star‐branched poly(dimethylsiloxane), polystyrene and poly(ethylene oxide) polymers.