Cationic block copolymers

Details Cationic block copolymers Cationic block copolymers

C - Chemistry, Metallurgy

08

G

C08G 81/00 (2006.01) C08G 65/00 (2006.01) C08G 73/04 (2006.01) C12N 15/87 (2006.01)

Patent

CA 2379205

The invention relates to cationic block copolymers of formula A(-X-B)n or C(-Y- D)m, wherein A represents a hydrophilic polymer, B represents polyethyleneimine (PEI), X represents a bridge, n represents 1-200, C represents PEI, D represents the residue of a polyethylene glycol, Y represents a bridge and m represents 1-200. The invention also relates to methods for producing the inventive cationic block polymers and to their use e.g. as a tenside and for complexing nucleic acids.

La présente invention concerne des copolymères séquencés cationiques de formule A(-X-B)n ou C(-Y-D)m, dans lesquelles A est un polymère hydrophile, B est un polyéthylénimine (PEI), X représente un pontage, n vaut entre 1 et 200, C est PEI, D est le résidu d'un polyéthylèneglycol, Y est un pontage et m vaut entre 1 et 200. Cette invention concerne également un procédé de préparation desdits copolymères ainsi que leur utilisation entre autres en tant qu'agents tensioactifs ou pour la complexation d'acides nucléiques.

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