Huangjing, Ph.D. candidate with major in chemical technology, acquired bachelor degree in East China University Of Since And Technology in 2009. My subject is about the adjustment and improvement of the rheology of complex fluid, including crude oil and coal water slurry (CWS), through amphiphilic comb-like copolymer. Some of the major problems in oil processing, transformation and storage are wax deposition on oil pipe walls and the high viscosity, which causes flow problems and costs plenty of energy. The synthesized oil-soluble comb-like copolymer would interact with the asphaltene and wax in crude oil, resulting a reduction in wax precipitation and enhanced flowability of oil. Meanwhile, a series of synthesized water-soluble copolymers are applied in CWS as well. As fuel of oil alternatives, CWS is required to have a solid content as high as posible and a good flowability. Thus the settling and high viscosity of the dispersion are big challenges. The copolymer dispersants can adsorb on the surface of coal particles, which provides electrostatiic repulsion and steric hindrance among coal particles, improve the rheology and stability the suspension, and enable a more concentrated CWS.