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Surface characterization of polymers by inverse gas chromatography

机译:反相气相色谱法对聚合物进行表面表征

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An inverse gas chromatographic (IGC) study of the sorption properties of macroporous crosslinked poly(glycidyl methacrylate-co-ethylene glycol dimethacrylate), PGME, and PGME modified with ethylene diamine, PGME-en, was presented. At infinite dilution, the thermodynamic parameters of adsorption, the dispersive components of the surface free energies, the acid/base constants and the interaction parameters for the initial and modified copolymer samples were investigated. The adsorption isotherms determined by IGC under conditions of finite surface coverage were used to estimate the surface area, the isosteric heat of adsorption and the adsorption energy distribution on the surface of the initial and modified copolymer samples. .
机译:反向气相色谱(IGC)研究了大孔交联的聚甲基丙烯酸缩水甘油酯-乙二醇二甲基丙烯酸乙二醇酯和乙二胺改性的PGME-PGME-en的吸附性能。在无限稀释下,研究了初始和改性共聚物样品的吸附热力学参数,表面自由能的分散成分,酸/碱常数以及相互作用参数。用IGC在有限表面覆盖条件下测定的吸附等温线估算初始和改性共聚物样品的表面积,吸附等位热和吸附能分布。 。

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