A thermosetting composition that includes a first reactant having functional groups; a second reactant having functional groups coreactive with the functional groups of the first reactant; and a block copolymer flow control agent. The block copolymer includes a first block made up of residues of a radically polymerizable fluoroalkyl (meth)acrylate monomer, a second block made up of residues of a second radically polymerizable ethylenically unsaturated monomer, and optionally a third block made up of residues of a third radically polymerizable ethylenically unsaturated monomer. The first, second and third blocks are made of different residues from each other and the block copolymer has a polydispersity index of less than 2.5. Also disclosed is a method of coating a substrate including the steps of applying the present thermosetting composition to the substrate; coalescing the thermosetting composition to form a substantially continuous film; and curing said thermosetting composition by the application of heat.
一种热固性组合物,包括具有官能团的第一反应物;具有与第一反应物官能团共反应的官能团的第二反应物;以及嵌段共聚物流动控制剂。嵌段共聚物包括由可辐射聚合的氟烷基(甲基)
丙烯酸酯单体残留物组成的第一嵌段、由第二种可辐射聚合的
乙烯基不饱和单体残留物组成的第二嵌段,以及可选的由第三种可辐射聚合的
乙烯基不饱和单体残留物组成的第三嵌段。第一、第二和第三嵌段由彼此不同的残基组成,嵌段共聚物的多分散指数小于 2.5。还公开了一种涂覆基材的方法,包括以下步骤:将本热固性组合物涂覆到基材上;凝聚热固性组合物以形成基本连续的薄膜;以及通过加热固化所述热固性组合物。