A　high　performance　polycarboxylate　superplasticizer　(PCE)　was　successfully　synthesized　by　a　polymerization　reaction　among　acrylic　acid　(AA),　maleic　anhydride　(MA)　and　isopentenyl　polyethylene　glycol　(IPEG)　through　redox　initiation　system.　The　composition　and　amounts　of　initiation　system,　and　the　ratio　of　monomers　were　investigated　respectively.　The　proportion　of　IPGE:　MA:　AA:　sodium　methallyl　sulfonate　(SMAS):　ammonium　persulfate　(APS):　ascorbic　acid　(ASA)　was　determined　as　1:　3:　1.5:　0.3:　0.015:　0.012.　Moreover,　the　effect　of　polymerization　temperature　on　PCE＇s　cement　paste　fluidity　was　studied.　The　results　showed　that　the　cement　pastes　mixed　with　PCE　synthesized　at　10°C,　20°C　and　30°C　respectively　exhibited　better　fluidity　performances　than　that　mixed　with　common　PCE.　The　Fourier　Transform　Infrared　Spectroscopy　(FTIR)　measurements　were　used　for　the　structural　characterization.　The　results　confirmed　the　occurrence　of　polymerization　reaction　and　the　ideal　structure.　Furthermore,　the　application　performances　of　PCE　synthesized　through　redox　initiation　system　in　mortar　and　concrete　were　tested.　The　results　showed　that　the　water　reducing　rate　of　PCE　in　mortar　and　the　slump　performances　of　PCE　in　concrete　were　better　than　those　of　the　common　commercial　PCEs.　This　synthesis　method　presents　the　great　research　value　and　application　prospect　for　the　PCE　preparation　in　concrete　engineering.　©　2017　Trans　Tech　Publications,　Switzerland.