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Synthesis, characterization and application to lubricating oil of phospho sulfured polymers additives

Thesis/Dissertation:

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).
Authors:
Publication Date:
Jul 01, 1992
Product Type:
Thesis/Dissertation
Report Number:
IFP-41371
Reference Number:
SCA: 020500; PA: FRC-95:001537; EDB-95:019556; SN: 95001310270
Resource Relation:
Other Information: TH: These (D. es Sc.); PBD: Jul 1992
Subject:
02 PETROLEUM; LUBRICATING OILS; ADDITIVES; POLYMERS; PHOSPHORUS; SULFUR; VISCOSITY; HIGH PRESSURE; MOTORS; POLYOLEFINS; MALEIC ACID; AMINES; EPOXIDES; METHACRYLATES; 020500; PRODUCTS AND BY-PRODUCTS
OSTI ID:
10108047
Research Organizations:
Institut Francais du Petrole (IFP), 92 - Rueil-Malmaison (France); Paris-6 Univ., 75 (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
Other: ON: DE95729626; TRN: FR9501537
Availability:
OSTI; NTIS (US Sales Only)
Submitting Site:
FR
Size:
134 p.
Announcement Date:
Jun 30, 2005

Thesis/Dissertation:

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}
}