Standard Test Method for Determination of the Content of Nitroxide Radical (4-Hydroxy-2,2,6,6-tetramethylpiperidine-1-oxyl) in Butadiene, Styrene and Isoprene by Cyclic Voltammetry Method

Importancia y uso:

4.1 Nitroxide radicals (H-Tempo, O-Tempo (4-oxo-2,2,6,6-tetramethylpiperidine-1-oxyl), etc.) are widely used as inhibitors of thermopolymerization in the processes of transportation, storage, and separation of monomers (isoprene, butadiene, styrene, etc.). This test method provides a procedure for assaying nitroxide radicals in monomers.

4.2 This procedure can be used for determination of the content of nitroxide radicals (H-Tempo, O-Tempo, etc.) in other solvents (dimethyl formamide, DMSO etc.).

Subcomité:

D16.07

Volúmen:

06.04

Número ICS:

83.140.01 (Rubber and plastics products in general)

Palabras clave:

4-hydroxy-2,2,6,6-tetramethylpiperidine-1-oxyl; butadiene; cyclic voltammetry method; H-TEMPO; isoprene; nitroxide radical; styrene;