Analysis of phenol-formaldehyde resols b
โ
M. Duval; B. Bloch; S. Kohn
๐
Article
๐
1972
๐
John Wiley and Sons
๐
English
โ 755 KB
The chromatographic analysis of resol solutions in tetrahydrofuran solvent, by means of a set of columns packed with crosslinked polystyrene gels, has been carried out with adequate resolving power for a clear-cut qualitative or semiquantitative difierentiation between various types of resols to be