Synthesis of oligoisobutylenes with phosphorus-containing end groups and use of these materials as multifunctional additives for lubricating oils

1978 ◽  
Vol 14 (8) ◽  
pp. 573-576
Author(s):  
V. V. Beresnev ◽  
A. K. Serobyan ◽  
P. A. Kirpichnikov
Keyword(s):  
Lubricating Oils ◽  
Phosphorus Containing ◽  
End Groups ◽  
Multifunctional Additives

Study of phosphorus-containing compounds as anti-seize and anti-wear additives for transmission and engine oils

2021 ◽  
Vol 05 ◽  
pp. 15-22
Author(s):  
N.N. Novotrozhina ◽  
◽  
Yu.B. Ramazanova ◽  
G.A. Gakhramanova ◽  
B.I. Musayeva ◽  
...  
Keyword(s):  
Functional Groups ◽  
Dithiophosphoric Acid ◽  
Lubricating Oils ◽  
Engine Oils ◽  
Phosphorus Containing ◽  
Acid Esters ◽  
Petroleum Oils

Dithiophosphoric acid esters containing various functional groups have been synthesized. On the basis of allyloxybenzyl- and allyloxymethylbenzylchlorides, as well as sodium diisopropyldithiophosphate, allyloxybenzyl- and allyloxymethylbenzyldialkyldithiophosphates were obtained, respectively. 5-methyl-2-hydroxyphenylcarbonylmethyldiisopropyldithiophosphate was synthesized by the interaction of 5-methyl-2-hydroxy-chloroacetophenone and sodium diisopropyldithiophosphate. The synthesized compounds were studied as anti-wear and anti-seize additives for lubricating oils. Were also investigated their thermo-oxidative and anticorrosive properties. It was found that all synthesized compounds provide an improvement in the anti-wear and anti-seize properties of petroleum oils, and the efficiency depends on the presence of certain functional groups in the molecules of additives.

Derivatives Based on 2,5-Dimercapto-1,3,4-Thiadiazole as Multifunctional Additives for Lubricating Oils

2021 ◽  
Vol 627 (5) ◽  
pp. 45-52
Author(s):  
A. V. Naletova ◽  
◽  
D. V. Davydov ◽  
V. N. Bakunin ◽  
◽  
...  
Keyword(s):  
Oil Refining ◽  
Lubricating Oils ◽  
Oil Companies ◽  
Multifunctional Additives ◽  
Strategic Context ◽  
Selection Of

Additives’ research remains relevant to many oil companies for this day. The dynamically developing market of lubricants requires the search for promising products for their production and the preparation of new compositions. In the last decade the strategic context for domestic oil refining has been the development of its own additives, compositions and packages of additives. The article discusses the trend of the selection of promising products based on a compound, which is the basis for the synthesis of multifunctional additives.

Effect of magnetic field on tribological performances of two lubricating oils with phosphorus-containing additives

2017 ◽  
Vol 30 (1) ◽  
pp. 23-32 ◽  
Author(s):  
Zeqi Jiang ◽  
Jianhua Fang ◽  
Boshui Chen ◽  
Kecheng Gu
Keyword(s):  
Magnetic Field ◽  
Lubricating Oils ◽  
Phosphorus Containing

scholarly journals HYDROXYALKYLBENZYL SULFONATES OF VARIOUS MOLECULAR MASS AS MULTIFUNCTIONAL ADDITIVES TO LUBRICATING OILS

2018 ◽  
Vol 16 (4) ◽  
pp. 578-583
Author(s):  
S.M. Velieva ◽  
◽  
I.D. Gulaliev ◽  
E.M. Javadova ◽  
I.A. Sadirzadeh ◽  
...  
Keyword(s):  
Molecular Mass ◽  
Lubricating Oils ◽  
Multifunctional Additives

scholarly journals Synthesis of phosphorus-containing pseudopoliamino acids of polyester type

2021 ◽  
Vol 4 (1) ◽  
pp. 224-229
Author(s):  
A. V. Stasiuk ◽  
◽  
S. P. Prychak ◽  
N. V. Fihurka ◽  
S. M. Varvarenko ◽  
...  
Keyword(s):  
Nmr Spectroscopy ◽  
1H Nmr ◽  
1H Nmr Spectroscopy ◽  
Phosphate Group ◽  
Phosphorus Containing ◽  
End Groups ◽  
Ethyl Phosphate

The method of obtaining phosphorus-containing polyester by the Steglich reaction is considered. The results of studies on the production of polyesteresters using ethyl phosphate group in the structure of dipolyethyleneglycolethylphosphate are presented. The obtained polymer was characterized by IR and 1H NMR spectroscopy. The composition of polyester ether was evaluated and its end groups were analyzed.

scholarly journals Cationic phosphorus-containing dendrimers reduce prion replication both in cell culture and in mice infected with scrapie

2004 ◽  
Vol 85 (6) ◽  
pp. 1791-1799 ◽  
Author(s):  
Jérôme Solassol ◽  
Carole Crozet ◽  
Véronique Perrier ◽  
Julien Leclaire ◽  
Florence Béranger ◽  
...  
Keyword(s):  
Cell Culture ◽  
Transmissible Spongiform Encephalopathies ◽  
Post Exposure Prophylaxis ◽  
Spongiform Encephalopathies ◽  
Prion Strains ◽  
Phosphorus Containing ◽  
End Groups ◽  
Infected Cells ◽  
Exposure Prophylaxis

Over the last 30 years, many drugs have been tested both in cell culture and in vivo for their ability to prevent the generation of prions and the development of transmissible spongiform encephalopathies. Among the compounds tested, dendrimers are defined by their branched and repeating molecular structure. The anti-prion activity of new cationic phosphorus-containing dendrimers (P-dendrimers) with tertiary amine end-groups was tested. These molecules had a strong anti-prion activity, decreasing both PrPSc and infectivity in scrapie-infected cells at non-cytotoxic doses. They can bind PrP and decrease the amount of pre-existing PrPSc from several prion strains, including the BSE strain. More importantly, when tested in a murine scrapie model, the dendrimers were able to decrease PrPSc accumulation in the spleen by more than 80 %. These molecules have a high bio-availability and therefore exhibit relevant potential for prion therapeutics for at least post-exposure prophylaxis.

ChemInform Abstract: Phosphorus-Containing Podands (III), (VI). Structure of the End Groups and Complexing Ability.

ChemInform ◽  
2010 ◽  
Vol 22 (17) ◽  
pp. no-no
Author(s):  
V. I. EVREINOV ◽  
Z. N. VOSTROKNUTOVA ◽  
A. N. BOVIN ◽  
A. N. DEGTYAREV ◽  
E. N. TSVETKOV
Keyword(s):  
Complexing Ability ◽  
Phosphorus Containing ◽  
End Groups
Sign in / Sign up

Export Citation Format

Share Document