STRUCTURAL AND THERMODYNAMIC ANALYSIS OF ADHESION PROMOTING MONOMERS

研究结果表明：(1)在3-甲基丙烯氧丙基三甲氧基硅烷(3-MPS)与1H、1H、2H、2H的最佳配比下，三氟已基三甲氧基硅烷(LP-4)的拉伸粘结强度显著高于3-MPS处理的玻璃板。样品具有良好的耐水粘附性。(2)经混合硅烷处理后表面的拉伸粘结强度与表面自由能之间存在相关性。(3)计算了硅烷、混合硅烷和树脂单体的溶解度参数值…。更晚了。当混合硅烷形成的表面分子的溶解度参数值与树脂单体的溶解度参数值接近时，可获得较好的处理效果，但这种影响并不仅仅归因于该参数。(4)计算了不同官能团的丙烯酸酯单体的溶解度参数值。用高效液相色谱法测得的各参数与丙烯酸类单体的保留时间呈线性关系，该参数可作为反映单体分子极性的一个指标。而侧链单体的价值与反应时间无关。(5)以经铁离子处理的牛牙本质为柱进行亲和层析，发现含有羧基和磷酸基团的单体与未处理的柱相比，保留时间较长，峰宽。(6)在有钙离子存在的情况下，用电位滴定法测定了钙离子与含羧酸基或磷酸基的丙烯酸酯单体以及各种无机磷酸和有机膦酸之间的相互作用。含磷化合物有邻位磷酸、焦磷酸和多聚磷酸，以及亚甲基二膦酸、亚甲基三膦酸和植酸。观察到钙离子与4-甲基丙烯酰氧基乙基偏三甲酸、无机基团中的多聚磷酸和亚甲基膦酸基中的三氮杂环己烷之间存在较强的相互作用。较少

The purpose of this investigation was to analyze the relationship between the adhesive strength of acrylic resin to the glass plate treated with the mixed silane primer and the surface free energy of the surface treated with the primer and the solubility parameter of the primer and the resin monomers and to study mutual interaction between teeth and various acrylic monomers with a functional group.The results were as follows : (1) The tensile bond strength of the resin to the plate treated with the mixed silane at the optimum ratio of 3-methacryloxypropyltrimethoxysilane (3-MPS) and 1H,1H,2H,2H.nonafluoro-hexyltrimethoxysilane (LP-4) was significantly high compared with 3-MPS treated specimen, and the specimens showed good water-resistant adhesion (2) There was the correlation between the tensile bond strength and the surface free energy of the surface treated with the mixedsilane. (3) The values of solubility parameters of the silanes, the mixed silane and the resin monomer were calcu … More lated. And when the value of the solubulity parameter of the molecules on the surface formed by the mixed silanes colsed to that of the resin monomer, a good treatment effect was obtained, but the effect was not attributed to the parameter only. (4) The values of the solubility parameter of various acrylic monomers with a functional group were calculated. There was a linear relationship between the values of the parameterand the retention time of the acrylic monomer measured by HPLC and the parameter was avairable as an indication that exhibited the polarity of the monomer molecule. However, there was no relationship between the value and the time of the monomer with side-chain. (5) By the affinty chromatography using the bovine dentin treated with ferric ions as an column, the chromatogram of the monomers with a functional group, such as carboxylic and phosphoric group, showed long retention time and a broad peak compared with that of the untreated column. (6) The interaction between calcium ion and the acrylic monomers with carboxylic or phosphoric group and various inorganic phosphoric acids and organic phosphonic acids was measured by potentiometric titration in the presence of calcium ion. The phosphorus compounds were ortho-, pyro- and poly-phosphoric acid, and methylenediphosphonic acid, nitrilotris(methylenephosphonic acid) and phytic acid. Strong interaction between calcium ion and 4-methacryloyloxy-ethyltrimellitic acid, polyphosphoric acid in the inorganic group, and nitrilotris(methylenephosphonic acid) in the phosphonic acid group was observed. Less