| The main purpose in this paper is improving in cold tolerance of acrylic rubber gained by emulsion copolymerization of methoxy ethoxy ethoxy acrylate(MOEOEA) with butyl acrylate(BA), ethyl acrylate(EA) and vinyl chloroacetate(VCA).Firstly, the monomer of MOEOEA was synthesized through esterifying acrylic acid with diethylene glycol monomethyl ether. The effects of the kind and dosage of dehydrating agent, the mole ratio of acid to alcohol, reaction time on conversion, yield and purity were studied. When benzene was used as dehydrating agent the dosage of benzene is 120% to alcohol, the mole ratio of alcohol to acid is 1.2:1, the reaction time is between 7～8h, the conversion of di-ethylene glycol monomethyl ether can reach to 97% and purity is no less than 97%. The objective monomer's structure was characterized by GC-MS and the purity of monomer can reached above 97% determined Gas Chromatogram.Secondly, the acrylic homopolymers of MOEOEA and copolymers of EA, BA, MOEOEA, VCA were synthesized by emulsion polymerization. The results of DSC showed that the glass-transition temperature (Tg) of homopolymer is-86℃. The glass-transition temperature (Tg) of copolymer is accord with the calculation value through FOX equation.Thirdly, the behaviors of emulsion polymerization and properties were studied in the presence of redox initiator system and compound emulsifier. When the dosage of MOEOEA is 20wt% to total monomer, the conversion rate was no less than 97% and gel content of ACM(acrylester butadience rubber) can be controlled among 2-15%.Fourthly, the vulcanizing behaviors and properties were also investigated in detail with sulfur/soap as vulcanizing agent system and with carbon black (HAF N330) as reinforcing agent. After two steps vulcanized, the strength can reach 12MPa above, the elongation at break is 317%, the rate of permanent deformation is less than 20%, the Shore A hardness is from 70 to 75, the brittle temperature which is far lower than that of current ACM is lower than-32℃.
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