【摘要】 作者采用pH滴定法和钙电极法测定自制新化合物NBG—GMA与钙离子的络合稳定常数。用pH滴定法测得Igk稳平均值为8.95(20℃)。用作者自己推演的计算公式的钙电极法测得的Igk稳平均值为8.72(25℃)。更多还原

【Abstract】 The new dental coupling agent NBG-GMA was synthesized, and the adhcsive strength between dentine and resin was improved. So the stability constant of NBG-GMA calcium complex was determined by pH-titration and calciuim-sensitive electrode methods. The lgkstab measured by the former method was 8.95 at 20℃ in 95% alc, soln. But that measured by the later method was 8.72 at an ion strength of 0.1M NaCl and 25℃ in 50％ alc. soln., An equation was deduced for the calculation of lgk_stab in the calcium ion-selective electrode measurement.更多还原