Abstract
High-resolution gel permeation chromatography (GPC) has been attained on 2 m × 0.35 mm I.D. micro packed fused-silica columns and applied to the separation of epoxy and phenol—formaldehyde resins. More peaks were resolved on these micro-GPC columns than on conventional GPC columns, 1 m × 8 mm I.D. The use of high-resolution micro GPC combined with reversed-phase liquid chromatography gave some information regarding the structure of by-products of epoxy resins.
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