There is described a co-polymerisable phosphorus containing polymer precursor which comprises: a) a polymerisable unsaturated bond; b) a oxycarbonyl or iminocarbony group; and c) a free hydroxy group or a functional group obtainable by reaction of a free hydroxy group with a suitable electrophile; and d) a terminal phosphorus and oxygen containing group located at the end of a carbon chain and comprising at least one group selected from: hydroxy phosphorus and an optionally substituted hydrocarbyl group attached to a phosphorus atom through an oxy group; where the polymer precursor: is substantially free of halo comprising species; has a molecular weight (Mn if a polymer) of from about 200 to about 5,000 daltons; and optionally, has a Hoppler viscosity measured at 25° C. of less than about 14,000 mPa.s. These polymer precursors are obtainable as the product of a reaction between an optionally substituted terminal phosphate or H-phosphonate ester and compound comprising at least one oxiranyl, preferably epoxy, ring adjacent an alkylidenylcarbonyloxy group. The polymer precursors can be copolymerised with other monomers to produce copolymers such as phosphorus containing polyurethanes which for example have use as flame retardants, anti-corrosives, pigment dispersants and/or adhesion promoters.
描述了一种共聚
磷含量聚合物前体,其包括:a)可聚合不饱和键;b)氧羰基或亚
氨基羰基团;c)自由羟基或可通过与适当电子亲合剂反应获得的功能基团;以及d)位于碳链末端的含
磷氧基团,包括至少一种从羟基
磷和可选取代的烃基团通过氧基连接到
磷原子的团;其中,聚合物前体:基本上不含卤素物种;分子量(如果是聚合物,则为Mn)为约200至约5,000道尔顿;可选地,在25℃下测得的霍普勒黏度小于约14,000mPa.s。这些聚合物前体可作为可选取代的末端
磷酸盐或H-
膦酸酯与至少一个邻接烷基烯基羰酰氧基团的化合物之间反应的产物获得。聚合物前体可以与其他单体共聚,以产生诸如含
磷聚
氨酯等共聚物,例如用作阻燃剂、
防腐剂、
颜料分散剂和/或粘接剂。