GPC에 의한 폴리초산비닐의 분자량 및 분자량분배 측정에 관한 연구

Studies on the Determination of Molecular Weight and its Distribution of Polyvinylacetate by Gel Permeation Chromatography

Molecular weight and its distribution of polyvinyl acetate synthesized by emulsion polymerization method were studied by gel permeation chromatography and column fractionation method. It was attempted to obtain the linearity of calibration curve, four different permeability gel packed column were connected in GPC measurement. The concentration of 0.1g/100ml of standard material was used to apply the calibration curve for a wide range of molecular weight determination. In the fractionation method, fractionation data were plotted according to Schulz plotting method. It was found that the results obtained by fractionation method was relatively in good agreement with those of GPC area method but not with those GPC line method.