Surfactants based on poly(alkylene carbonate)s

Details Surfactants based on poly(alkylene carbonate)s Surfactants based on poly(alkylene carbonate)s

C - Chemistry, Metallurgy

08

G

400/2013

C08G 64/02 (2006.01) B01F 17/00 (2006.01) C08G 64/18 (2006.01) C11D 3/37 (2006.01)

Patent

CA 1312398

NOVEL SURFACTANTS BASED ON POLY (ALKYLENE CARBONATE)S Abstract of the Disclosure A polyether polycarbonate block copolymer nonionic surface-active agent and method for making the same. The polyether polycarbonate surface active agent is comprised of a hydrophilic portion comprised of a polymer selected from the group consisting of a polyoxyalkylene polyether, a saccharide, a saccharide polyoxyalkylenate, a polycarbonate having a carbon dioxide content of from about 1 to 15 molar percent and mixtures thereof and a hydrophobic portion comprising alkylene and carbonate units arranged in alter- nating or random order to form a poly(alkylene carbonate) having a total carbon dioxide content of from about 25 to 50 molar percent and a total molecular weight of from about 300 to 10,000. The hydrophobic portion is bonded to the hydrophilic portion at each side of a reactive hydrogen. The surface active agent is prepared by polymerizing the hydrophilic portion with the hydrophobic portion in a weight ratio of about 10:90 to 90:10. - 32 -

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