POLYMERIZABLE DENTAL COMPOSITION BASED ON CONDENSED SILANES
申请人:VOCO GmbH
公开号:US20210052469A1
公开(公告)日:2021-02-25
The present invention relates to novel polymerizable dental compositions comprising, (A) polysiloxanes, wherein the polysiloxanes comprise a mixture of the condensates of the three silanes (a1), (a2) and (a3) and/or a cocondensate of a mixture of the three silanes (a1), (a2) and (a3) and/or a mixture of at least two of the cocondensates (a1)/(a2), (a1)/(a3) and (a2)/(a3) and/or a mixture of the condensate of one of the three silanes (a1), (a2) or (a3) with the cocondensate of the other two silanes, (B) fillers and (C) initiators and/or catalysts and/or activators for the polymerization.
作者:John B. Grande、Ferdinand Gonzaga、Michael A. Brook
DOI:10.1039/c0dt00400f
日期:——
groups and polymers. Traditional routes to such compounds, which typically involve platinum-catalyzed hydrosilylation, suffer from incompatibility with certain functional groups. B(C6F5)3-catalyzed condensation of hydrosilanes with alkoxysilanes offers new opportunities to prepare explicit silicone structures. We demonstrate here that conversion of alcohols to silylethers competes unproductively with
硅氧烷的令人印象深刻的表面活性可以通过引入亲水性有机官能团和聚合物来增强。这类化合物的传统路线,通常涉及铂-催化的氢化硅烷化,与某些官能团不相容。B(C 6 F 5)3催化的氢硅烷与烷氧基硅烷的缩合反应为制备明确的有机硅结构提供了新的机会。我们在这里证明,醇向甲硅烷基醚的转化与烷氧基硅烷转化为二硅氧烷。相比之下,可以容易地以高收率制备各种结构复杂的烷基卤化物和低聚谷氨酰化合物。热3 + 2-环加成和硫醇-烯 点击反应用于将这些化合物转化为表面活性物质。