Price C A
J Dent Res. 1986 Jul;65(7):987-92. doi: 10.1177/00220345860650071801.
Eight different cross-linking agents were added to the monomer component of a linear poly(methyl methacrylate) denture-base resin in various concentrations, and their effect on the impact resistance of the cured polymer studied. The cross-linking agents were chosen to provide a range of cross-linking chain lengths and degrees of chain flexibility. When tested under oral conditions, the polymers cross-linked with long and flexible chains did not show the marked reduction in impact resistance found in polymers cross-linked with shorter and stiffer cross-linking chains. It seems likely that by replacing EGDMA in denture-base resins with a cross-linking agent such as PEG 600 DMA, one could use a higher concentration with a consequent improvement in solvent resistance.
将八种不同的交联剂以不同浓度添加到线性聚甲基丙烯酸甲酯义齿基托树脂的单体组分中，并研究它们对固化聚合物抗冲击性的影响。选择这些交联剂是为了提供一系列的交联链长度和链柔性程度。在口腔条件下进行测试时，与长而柔性链交联的聚合物没有表现出与较短且较硬交联链交联的聚合物那样显著的抗冲击性降低。通过用诸如聚乙二醇600二甲基丙烯酸酯（PEG 600 DMA）这样的交联剂替代义齿基托树脂中的二甲基丙烯酸乙二醇酯（EGDMA），似乎有可能使用更高的浓度，从而提高耐溶剂性。
