Abstract
Epoxy novolac resins can be characterized using a 5-μm phenyl-bonded phase column. Both reversed-phase (tetrahydrofuran—water) and normal phase (tetrahydrofuran—hexane and chloroform—hexane) elutions can be used to obtain a qualitative fingerprinting-type of identification and a quantitative measurement of molecular-weight distribution. The retention of epoxy novolac resins is proportional to the degree of polymerization and the mobile phase compositions.
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