Synthesis of sulfonate gemini surfactant (n-C_(14)H_(29))_2(OCHCH_2 OCH_2 CH_2 OCH_2 CHO)(C_3 H_6 SO_3 Na)_2;

In order to improve the ability of oil displacing agent reducing the interfacial tension of oil/water and improve the recovery ratio of oil,sulfonate Gemini surfactant was synthesized,and it was composited with petroleum sulfonate,and then the ability of the composite system for reducing the interfacial tension of oil/water was mensurate by interfacial tensiometer tx-500.

Synthesis and properties of dicarboxylate and disulfonate salt-type cleavable surfactants with a 1,3-dioxane ring have been reviewed.

The Homopolymer of a cationic surface-active monomer,(2-acrylamido)ethyl tetradecyl dimethylammonium bromide(AMC14AB),was prepared through aqueous solution polymerization,and the homopolymer P(AMC14AB) was obtained.

Soapless latex with interpenetrating network structure (LIPN) is prepared by two-step polymerization with surface-active monomers; the influence of latex particle size and distribution, stor- age stability, water-resistance, use level of cross-linking agent and compatibility of the compositio ns on dynamic force property is discussed.

A novel cationic and acrylamide-type surface-active monomer,dimethyltetradecyl(2-acrylamidopropyl) ammoniumbromide(DTAB),was successfully synthesized,and cationic DTAB-co-acrylamide(AM) copolymer p(DTAB-co-AM)with hydrophobically associative property was prepared by free radical homogeneous copolymerization of DTAB and AM in aqueous solution,which had both ionic and hydrophobic groups.

Study has been made on polymerization of nonsoap acrylate emulsion and organosiloxane modified nonsoap acrylate emulsion using sodium undecylenate(NaUA) as surface active monomer and K2S2O8 /NaHSO3 as redox initiation system adopting seed emulsion method.