The silicon-containing phenoxy ethers are of the formula III: ##STR1## wherein R.sup.1 and R.sup.2 which may be the same or different are selected from H, --R.sup.3 --X, aliphatic hydrocarbyl having 1-6 carbon atoms or aryl, or substituted derivatives thereof, provided that not more than one of R.sup.1 and R.sup.2 is H; R.sup.3 is a divalent C.sub.1 -C.sub.30 aliphatic and/or aromatic hydrocarbyl group which may optionally be substituted, or interrupted, by a hetero atom; R.sup.4 and R.sup.5 which may be the same or different are H, ##STR2## or an ortho para directing activating group for aromatic electrophilic substitution, other than an amine; and X is a reactive functional group capable of undergoing an acid-catalyzed electrophilic aromatic substitution reaction with a phenol, for example an aldehyde group. They can be polymerized to produce silicone-modified polymers of the phenol-aldehyde type without the use of free aldehyde. One-part compositions containing a compound of the formula III and a latent acid catalyst (e.g. for photoinitiation or thermal initiation of polymerization) are described. The compositions are intended for use as coatings, sealants, adhesives, potting compositions or photoresists. Exemplified compounds are of the formula VII: ##STR3##
                            含
硅酚醚的
化学式为III:##STR1##其中R.sup.1和R.sup.2可以相同或不同,选自H,--R.sup.3--X,具有1-6个碳原子的脂肪烃基或芳基,或其取代衍
生物,前提是R.sup.1和R.sup.2中不超过一个为H;R.sup.3是一种双价的C.sub.1-C.sub.30脂肪和/或芳香族烃基,可以选择性地被取代或中断,由杂原子取代;R.sup.4和R.sup.5可以相同或不同,选自H,##STR2##或用于芳香族亲电取代的邻位导向活化基团,但不包括胺;X是一种反应性功能基团,能够与
苯酚发生酸催化的亲电取代反应,例如醛基。它们可以聚合以产生改性聚苯
醛类的
硅氧烷聚合物,而无需使用游离醛。描述了含有化合物III式和潜在酸催化剂(例如用于光引发或热引发聚合)的单组分组合物。这些组合物用于涂层、密封剂、粘合剂、灌封剂或光阻。其中,化合物的实例为式VII:##STR3##