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公开(公告)号：US5380901A
公开(公告)日：1995-01-10
申请号：US828316
申请日：1992-01-30
CPC分类号： C08G77/48 , C07F7/0852 , C08G77/60
摘要： The present invention provides a process for converting a hydrophobic siloxane diacrylate, an aromatic fluorinated diacrylate and a hydrophilic polyethylene glycol diacrylate to their respective multifunctional oligomers. Bis(4-acryloxybutyl)tetramethyldisiloxane, prepared from the corresponding diol, is converted to relatively low viscosity, multifunctional oligomers with the use of DMSO. The hydrophilic monomer, polyethylene glycol 400 diacrylate, formed more viscous, water soluble oligomeric products without the need for a solvent. Characterization of these oligomers by infrared spectroscopy and .sup.1 H NMR supports the assigned structures. Because of the predominant 1,6-arrangement of double bonds in these oligomers, they have a propensity to undergo cyclopolymerization as well as the usual crosslinking associated with the free radical polymerization of multifunctional monomers and oligomers. These novel oligomeric monomers have potential use in dental composites, sealants, adhesives, dentures, contact lenses, biomedical prostheses, cements, drug delivery systems, coatings and caulks.
摘要翻译： 本发明提供了将疏水性硅氧烷二丙烯酸酯，芳族氟化二丙烯酸酯和亲水性聚乙二醇二丙烯酸酯转化成它们各自的多官能低聚物的方法。 由相应的二醇制备的双（4-丙烯酰氧基丁基）四甲基二硅氧烷通过使用DMSO转化成相对低粘度的多官能低聚物。 亲水单体聚乙二醇400二丙烯酸酯形成更粘稠的水溶性低聚产物而不需要溶剂。 通过红外光谱和1H NMR表征这些低聚物支持所指定的结构。 由于这些低聚物中双键的主要排列为1,6，它们具有进行环聚合的倾向以及与多官能单体和低聚物的自由基聚合相关的通常的交联。 这些新型低聚单体在牙科复合材料，密封剂，粘合剂，假牙，隐形眼镜，生物医学假体，水泥，药物递送系统，涂层和填隙物中具有潜在的用途。
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