| 摘要 |
New diaryliodosyl salts have the formula <IMAGE> IV where R7 and R8, which may be the same or different, each represent a monovalent aromatic radical of from 6 to 22 carbon atoms, Zt- denotes a t-valent anion of formula MXn- or R9SO3- or a t-valent anion of a halogen-free inorganic oxy acid, t is 1, 2 or 3, M represents an atom of a metal or metalloid, X denotes a halogen atom, preferably of fluorine or chlorine, n is 4, 5, or 6 and is one more than the valency of M, with the proviso that MXn- can represent SbOHF5-, and R9 denotes a monovalent aliphatic or aromatic group of 1 to 20 carbon atoms. These salts have utility as photocuring catalysts for cationically polymerizable materials such as epoxide resins and phenolic resins.
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