Monohydric polyfluorooxetane oligomers, polymers, and copolymers and coatings containing the same
申请人:——
公开号:US20030208015A1
公开(公告)日:2003-11-06
Monofunctional polyfluorooxetane oligomers, polymers, and copolymers are prepared by the cationic polymerization of fluorooxetane monomers with a monoalcohol. In addition to serving as an initiator, the monoalcohol can also serve as a solvent for the fluorooxetane or other monomers to produce oligomers, polymers, or copolymers having low cyclic content. Suitable comonomers generally include various cyclic ethers. The polyfluorooxetane oligomer, polymer, or copolymer having a single hydroxyl end group can be functionalized with a variety of compounds so as to yield a functional end group such as an acrylate, a methacrylate, an allylic, an amine, etc., with the functionalized oligomer or polymer being suitable for use in radiation curable or thermal curable coating compositions. These functionalized polymers can be copolymerized and cured to provide improvements in wetting and surface properties.
通过氟氧杂环烷单体与单醇的阳离子聚合反应制备了单官能团聚合物、高聚物和共聚物。除了作为引发剂外,单醇还可以作为溶剂,与氟氧杂环烷或其他单体一起产生低环含量的寡聚物、高聚物或共聚物。适当的共聚单体通常包括各种环氧化合物。具有单一羟基末端的聚氟氧杂环烷寡聚物、高聚物或共聚物可以与各种化合物进行官能化,从而产生诸如丙烯酸酯、甲基丙烯酸酯、烯丙基、胺等官能末端基团,官能化的寡聚物或高聚物适用于辐射固化或热固化涂料配方。这些官能化聚合物可以共聚合和固化,从而提供润湿和表面性能的改善。