| 摘要 |
<p>DIARYLIODOSYL SALTS New diaryliodosyl salts have the formula IV where R7 and R8, which may be the same or different, each represent phenyl, naphthyl or said phenyl or said naphthyl substituted by one or two groups selected from the group consisting of alkoxy of 1 to 4 carbon atoms, alkyl of 1 to 4 carbon atoms, phenyl, nitro and halogen, Zt- denotes a t-valent anion of formula MXn- or R9SO3- or is a t-valent anion selected from the group consisting of phosphate, hydrogenphosphate, dihydrogenphosphate, sulfate and hydrogensulfate, t is 1, 2 or 3, M represents antimony, bismuth, tin, boron, iron, arsenic or phosphorus, X denotes a halogen atom, n is 4, 5, or 6 and is one more than the valency of M, with the proviso that, when M represents antimony, n is 6, and five of the symbols X each represent a fluorine atom, then one X represents a fluorine atom or a hydroxo group, and R9 represents methyl, trifluoromethyl, phenyl or said phenyl substituted by alkyl of 1 to 4 carbon atoms or by halogen, have utility as photocuring catalysts for cationically polymerisable materials such as epoxide resins and phenolic resins.</p> |
