Ferracane J L, Greener E H
J Dent Res. 1984 Aug;63(8):1093-5. doi: 10.1177/00220345840630081901.
Two methods of transmission Fourier Transform Infrared analysis were compared to determine the degree of polymerization (DP) in unfilled Bis-GMA-based dental resins. Diluent concentration, curing mode, and activator type were investigated. DP ranged from 55-72% and was highest for the most diluted resins. The effects of polymerization activation mode and type were insignificant. DP was slightly enhanced in the bulk of the resin, as determined by a KBr-pellet technique, in comparison with results from a thin film method, but both techniques seem to provide useful and reproducible results for dental resins.
比较了两种傅里叶变换红外光谱透射分析方法，以测定未填充的双酚A-甲基丙烯酸缩水甘油酯（Bis-GMA）基牙科树脂的聚合度（DP）。研究了稀释剂浓度、固化模式和活化剂类型。DP范围为55%-72%，对于稀释度最高的树脂，DP最高。聚合活化模式和类型的影响不显著。与薄膜法的结果相比，通过溴化钾压片技术测定，树脂本体中的DP略有提高，但两种技术似乎都能为牙科树脂提供有用且可重复的结果。
