Influence of low-molecular-weight copolymers of ethylene with vinyl acetate on the low-temperature properties of diesel fuel

1. The greatest depressant action is given by a copolymer with a molecular weight of approximately 2000, containing 30–40% vinyl acetate units by weight. This copolymer-depressant, in comparison with the other copolymers that were investigated, gives a greater depression of solid point for a diesel fuel with equal content of paraffinic hydrocarbons, and identical depression with a greater content of these hydrocarbons. 2. The efficiency of depressant action for the copolymers in diesel fuel increases with increasing molecular weight of the paraffinic hydrocarbons present in the fuel.