FUNCTIONALISED HIGHLY BRANCHED MELAMINE- AND POLYAMINE-BASED POLYMERS Russian patent published in 2015 - IPC C08G83/00 C08G73/06 C08G71/02 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of obtaining amphiphilic functionalised highly branched melamine- and polyamine-based polymers via condensation of melamine. Described is a method of obtaining amphiphilic functionalised highly branched melamine- and polyamine-based polymers, which includes the following steps: (A-i) condensing (A-i.1) melamine, (A-i.2) with at least one different amine with two primary amino groups, (A-iii) reacting the hydrophilic polymer fragment obtained at step (A-i) with at least one compound which can enter into a condensation reaction or addition reaction with amino groups and which leads to the formation of a hydrophobic polymer fragment, wherein the compound is selected from a group which includes aliphatic monocarboxylic acids with 4-22 carbon atoms or derivatives thereof, α, β-dicarboxylic acids with at least 6 carbon atoms or derivatives thereof, and alkylene oxides with at least 3 carbon atoms, selected from a group which includes propylene oxide, butylene oxide, pentylene oxide and styrene oxide. Described is a method of obtaining amphiphilic functionalised highly branched melamine- and polyamine-based polymers, which includes the following steps: (B-i) condensing (B-i.1) melamine, (B-i.2) with at least one different amine with two primary amino groups, wherein a hydrophobic polymer fragment is obtained at step (B-i), and (B-iii) reacting the hydrophobic polymer fragment obtained at step (B-i) with ethylene oxide, wherein the reaction with ethylene oxide can precede reaction with at least one alkylene oxide with at least 3 carbon atoms, selected from a group which includes propylene oxide, butylene oxide, pentylene oxide and styrene oxide. Also described is use of polymers obtained using any of the methods described above as surfactants.

EFFECT: obtaining functionalised polymers whose properties, particularly surface properties, can be easily changed.

14 cl, 8 ex