Zou Qi-Chao, Zhang Shi-Ling, Tang Qing-qiong, Wang Shi-Min, Wu Li-Min
Faculty of Chemistry and Material Science, Hubei University, Wuhan 430062, PR China.
J Chromatogr A. 2006 Mar 31;1110(1-2):140-5. doi: 10.1016/j.chroma.2006.01.052. Epub 2006 Feb 7.
The surface properties of poly(methyl methacrylate-co-n-butyl acrylate-co-cyclopentylstyryl polyhedral oligomeric silsesquioxane) (poly(MMA-co-BA-co-styryl-POSS)) were studied by means of inverse gas chromatography (IGC) using 10 non-polar and polar solvents as the probes. Thermodynamic parameters of adsorption, e.g., specific retention volume, the dispersive component of the surface free energy, the specific interaction contribution to the free energy of adsorption and the acid/base constants were obtained to investigate the interactions between the surfaces of the copolymers and different solvents. It was found that incorporation of styryl-POSS into polymer resulted in increasing interactions between polymers and solvents, dispersive component of surface free energy of polymer and acidity of the surfaces of the polymers. The more the styryl-POSS were embedded, the stronger the interaction between the polymer surface and solvent, the dispersive component of the surface free energy and the acidity of the polymer surface were.
采用反相气相色谱法（IGC），以10种非极性和极性溶剂为探针，研究了聚（甲基丙烯酸甲酯-共-丙烯酸正丁酯-共-环戊基苯乙烯基倍半硅氧烷）（聚（MMA-共-BA-共-苯乙烯基-POSS））的表面性质。通过获得吸附的热力学参数，如比保留体积、表面自由能的色散分量、吸附自由能的特定相互作用贡献以及酸碱常数，来研究共聚物表面与不同溶剂之间的相互作用。研究发现，将苯乙烯基-POSS引入聚合物中会导致聚合物与溶剂之间的相互作用增强，聚合物表面自由能的色散分量以及聚合物表面的酸度增加。苯乙烯基-POSS嵌入得越多，聚合物表面与溶剂之间的相互作用、表面自由能的色散分量以及聚合物表面的酸度就越强。
