This study aims to determine the structure-property correlation of different RPE type Pluronic to make it possible to design better copolymers for BASF. Knowing this relation, efficiency can be improved with better size selection of different chains, and compounds with narrower distribution can be found. Two-step calibration will be undertaken to improve accuracy. Antifoaming activity in relation to the polymer structure will be studied, foam height versus concentration will be examined. Ethylene oxide content and absolute chain length against foam height correlation will be looked into.