Phenol formaldehyde resin was analyzed using OHpak SB-800 HQ columns and GPC KD-800 columns.
Sample : Phenol formaldehyde resin
Columns : Shodex GPC KD-804 + KD-802.5, OHpak SB-804 HQ + SB-802.5 HQ (8.0mmI.D. x 300mm each) Eluent : 5mM LiBr in DMF Flow rate : 0.5mL/min Detector : Shodex RI Column temp. : 40°C