Provided is a fluorine-based surfactant including a copolymer synthesized by copolymerizing, as essential monomers, a polymerizable monomer (A) having a poly(perfluoroalkylene ether) chain and polymerizable unsaturated groups at both ends of the chain and a polymerizable monomer (B) having an oxyalkylene group and a polymerizable unsaturated group. The fluorine-based surfactant cannot structurally generate PFOS or PFOA, which tend to accumulate in the environment and living bodies; even when the fluorine-based surfactant has lower fluorine content than surfactants having a fluoroalkyl group having 8 or more carbon atoms, the fluorine-based surfactant has a higher capability of decreasing surface tension than the surfactants. Accordingly, the fluorine-based surfactant can be suitably used as a leveling agent for a coating composition, a resist composition, or the like.
本发明提供了一种
氟基表面活性剂,该表面活性剂包括一种共聚物,该共聚物是通过将具有聚(
全氟烷基醚)链并在链两端具有可聚合不饱和基团的可聚合单体(A)和具有氧亚烷基和可聚合不饱和基团的可聚合单体(B)作为基本单体进行共聚合合成的。
氟基表面活性剂不能在结构上生成 PFOS 或 PFOA,这两种物质容易在环境和
生物体内积累;即使
氟基表面活性剂的
氟含量低于具有 8 个或更多碳原子的氟烷基的表面活性剂,
氟基表面活性剂也比表面活性剂具有更强的降低表面张力的能力。因此,
氟基表面活性剂可适当用作涂层组合物、抗蚀剂组合物或类似物的流平剂。