Determination of Monomer Reactivity Ratios of Ethyl acrylate -Methacrylic acid at Generalized Least Square Model

The reactivity ratios of Ethyl acrylate (EA) and Methacrylic acid (MAA) synthesized by solution copolymerization method, were determined by ordinary least square (OLS) and generalized least square (GLS) approaches. The monomer reactivity ratios were determined by application of linear Off line 1H NMR methods like Finemann-Ross, Joshi-Joshi, Kelen-Tudos, extended Kelen-Tudos, Mao-Huglin at low conversion. It concluded that the monomer reactivity ratios, which were obtained by the Mao-Huglin method by the GLS approach, are the best linear estimations

کلیدواژه ها:

reactivity ratios ، generalized least square ، ordinary least square