Raman Spectroscopy Study of Structurally Uniform Hydrogenated Oligomers of α-Olefins.

ABSTRACT: The expansion of the range of physico-chemical methods in the study of industrially significant α-olefin oligomers and polymers is of particular interest. In our article, we present a comparative Raman study of structurally uniform hydrogenated dimers, trimers, tetramers, and pentamers of 1-hexene and 1-octene, that are attractive as bases for freeze-resistant engine oils and lubricants. We found out that the joint monitoring of the disorder longitudinal acoustic mode (D-LAM) and symmetric C-C stretching modes allows the quantitative characterization of the number and length of alkyl chains (i.e., two structural characteristics), upon which the pour point and viscosity of the hydrocarbons depend, and to distinguish these compounds from both each other and linear alkanes. We demonstrated th

SUBMITTER: Kuznetsov SM 

PROVIDER: S-EPMC7570275 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature