Abstract
The work relates to multifunctional lubricating oil additives, providing Viscosity Index Improver and antiwear-extreme-pressure properties. Dithiophosphorylated polymers are obtained by reacting dithioalcohols or dithioacids with functional polymers resulting from the copolymerization of alkyl methacrylates with maleic anhydride or glycidyl methacrylate, or from the grafting of maleic anhydride on ethylene-propylene copolymers. The polymethacrylate backbone additives, tested on a four-ball extreme-pressure tester, do not show improved performances; on the contrary, lubricating formulations containing the polyolefin backbone additive show improved performances when compared to zinc dithiophosphates, generally used as antiwear - extreme-pressure additives in automotive motor oils. (author).
Citation Formats
Keromest, C.
Synthesis, characterization and application to lubricating oil of phospho sulfured polymers additives.
France: N. p.,
1992.
Web.
Keromest, C.
Synthesis, characterization and application to lubricating oil of phospho sulfured polymers additives.
France.
Keromest, C.
1992.
"Synthesis, characterization and application to lubricating oil of phospho sulfured polymers additives."
France.
@misc{etde_10108047,
title = {Synthesis, characterization and application to lubricating oil of phospho sulfured polymers additives}
author = {Keromest, C}
abstractNote = {The work relates to multifunctional lubricating oil additives, providing Viscosity Index Improver and antiwear-extreme-pressure properties. Dithiophosphorylated polymers are obtained by reacting dithioalcohols or dithioacids with functional polymers resulting from the copolymerization of alkyl methacrylates with maleic anhydride or glycidyl methacrylate, or from the grafting of maleic anhydride on ethylene-propylene copolymers. The polymethacrylate backbone additives, tested on a four-ball extreme-pressure tester, do not show improved performances; on the contrary, lubricating formulations containing the polyolefin backbone additive show improved performances when compared to zinc dithiophosphates, generally used as antiwear - extreme-pressure additives in automotive motor oils. (author).}
place = {France}
year = {1992}
month = {Jul}
}
title = {Synthesis, characterization and application to lubricating oil of phospho sulfured polymers additives}
author = {Keromest, C}
abstractNote = {The work relates to multifunctional lubricating oil additives, providing Viscosity Index Improver and antiwear-extreme-pressure properties. Dithiophosphorylated polymers are obtained by reacting dithioalcohols or dithioacids with functional polymers resulting from the copolymerization of alkyl methacrylates with maleic anhydride or glycidyl methacrylate, or from the grafting of maleic anhydride on ethylene-propylene copolymers. The polymethacrylate backbone additives, tested on a four-ball extreme-pressure tester, do not show improved performances; on the contrary, lubricating formulations containing the polyolefin backbone additive show improved performances when compared to zinc dithiophosphates, generally used as antiwear - extreme-pressure additives in automotive motor oils. (author).}
place = {France}
year = {1992}
month = {Jul}
}