合成了不同聚合度的马来海松酸甘油酯聚氧乙烯醚(M RGEO).测定了产物的表面物理化学性能：表面张力δ345 dyn/cm～398 dyn/cm、临界胶束浓度CMC30～67×10-4mol/L、钙皂分散指数LSDP43～135%、对松节油乳化力EP64～181 s、浊点CP19℃～75℃；随着环氧乙烷聚合度(n)的增加，δ先下降，然后逐渐上升，CMC、钙皂分散力、CP、EP逐渐升高.在低温低酸度条件下，MRGEO-15缓蚀性能优于松香基咪唑啉、松香胺聚醚、新洁而灭和乌洛托品等市售产品.
A series of polyethoxylated maleopimaric acid glycerol ester(MRGEO) with different oxyethylene unit(n) were synthesized. Surface physicochemical properties of the products were measured.The results showed that surface tension (δ) varied from 34.5 to 39.8(dyn/cm),critical micelle concentration(CMC) from 3.0×10-4 to 6.9×10-4,lime soap dispersing power(LSDP)from 4.3% to 13.5%,emulsifying power(EP,with turpentine) from 64 to 181(s),cloud point from 19 to 75℃.The relations between surface physicochemical properties of the products and polymerization degree of ethylene oxide(EO) were firstly studied systematically.With the increasing polymerization degree(n) of EO,the surface activity was rising firstly,and then tending towards stable status or dropping a little,the application properties,such as EP,CP and LSDP,became better with increasing n,and reached balance where n equaled to 10 .The corrosion inhibition property of the products for Q235 carbon steel in hydrochloric acid was alao investigated.The result showed MRGEO-15 had good corrosion inhibition efficiency,and was better than commercial products rosin-based imidazoline,rosin amine polyoxylethylene ether,dodecyl dimethyl benzyl ammonium bromide and urotropine at low temperature and low acidity.
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