Polyamic acid (3) (LF-804)

Organic solvent SEC (GPC) column, GPC LF-804 was used to analyze polyamic acid.

Sample : 100µL
Polyamic acid
Poly(3,3′,4,4′-benzophenonetetracarboxylic dianhydride-co-4,4′-oxydianiline/1,3-phenylenediamine)

Columns : Shodex GPC LF-804 (8.0mmID*300mm) x 2
 Eluent : (30mM LiBr + 30mM H3PO4) in NMP
 Flow rate : 0.7mL/min
 Detector : Shodex RI
 Column temp. : 50°C