• Title/Summary/Keyword: dialkylenedithiocarbamate

Search Result 1, Processing Time 0.015 seconds

Synthesis of Oleic Acid Esters containing Thiocarbamate Group as Anti-wear Additives (티오카바메이트 그룹을 함유하는 올레인산 에스테르계 내마모제의 합성)

  • Hwang, Do-Huak;Kim, Young-Wun;Chung, Keunwo;Yang, Tae-Kyun
    • Applied Chemistry for Engineering
    • /
    • v.19 no.1
    • /
    • pp.51-58
    • /
    • 2008
  • A series of oleic acid esters containing mercaptobenzothiazole and dialkylenedithiocarbamate, which are potential environmentally friendly lubricating grease additives, were synthesized as 90% yield through several method such as nucleophilic substitution of dialkyl amine and carbon disulfide, reduction reaction, and condensation reaction. The structures of the additives were confirmed by $^1H$-NMR, FT-IR and EA analysis. The additives (1 wt%) were soluble in 100 N BO except C4-DTC-OE and soluble in soybean oil. The tribological properties as lubricating additives in 100 N BO were evaluated using 4-ball tester and the results showed as follows: Bz-thia-OE < C4-DTC-OE < Pyrro-DTC-OE < C8-DTC-OE. Whereas, the 4-ball anti-wear properties were not shown in soybean oil.