Properties of naphthalene oligomers polyalkylated with linear 1-alkenes

Sándor Nemes, János Borbély, Mónika Kovacs

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Abstract

Star-shaped alkylaromatic hydrocarbons consisting of oligomeric naphthalene cores and long straight-chain alkyl arms have been synthesised using a one-pot method: Naphthalene (AlCl3/CuCl2 -HCl) → Naphthalene oligomers (AlCl3/CuCl, 1-alkene) → Polyalkylated naphthalene oligomers, where 1-alkene is 1-hexene, 1-octene, 1-decene, 1-dodecene, 1-tetradecene, 1-hexadecene, and 1-octadecene, respectively. Different linear 1-alkenes with increasing chain length have been reacted with naphthalene oligomers in an identical way, and the properties of the total products compared and related to the chain length of the alkylating normal 1-alkene. Consequent to this, increases in M̄n, (=550-1900), viscosity indexes (90-161), pour points (-24 to +17°C), flash points (210-330°C), and oxidation resistance, could be observed. These products exhibited properties good enough to be suitable for use as lubricant base stocks and/or additives.

Original languageEnglish
Pages (from-to)285-291
Number of pages7
JournalJournal of Synthetic Lubrication
Volume15
Issue number4
DOIs
Publication statusPublished - Jan 1999

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Keywords

  • Alkylaromatic hydrocarbons
  • Linear 1-alkenes
  • Napthalene oligomers
  • Polyalkylation
  • Properties
  • Synthesis

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Mechanical Engineering
  • Surfaces, Coatings and Films

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