| 摘要 |
Compounds useful as surface coating agents, including compounds of the formula: wherein X<SUB>1 </SUB>comprises a first photoreactive species; X<SUB>2 </SUB>comprises a second photoreactive species; Y comprises a nonpolymeric core molecule comprising an aromatic group; and Z comprises at least one charged group. The Y core can include an aromatic group such as a benzene radical, the charged groups Z can be independently selected from the organic acids that include sulfonic acid, carboxylic acid, and phosphoric acid, and the photoreactive species of X<SUB>1 </SUB>and X<SUB>2 </SUB>can independently be aryl ketones, such as those selected from the group acetophenone, benzophenone, anthraquinone, anthrone, and anthrone-like heterocycles, and their substituted derivatives. Examples of such coating agents include 4,5-bis(4-benzoylphenylmethyleneoxy) benzene-1,3-disulfonic acid di(potassium and/or sodium) salt, 2,5-bis(4-benzoylphenylmethyleneoxy) benzene-1,4-disulfonic acid di(potassium and/or sodium) salt (Compound II), and 2,5-bis(4-benzoylphenylmethyleneoxy) benzene-1-sulfonic acid monopotassium and/or monosodium salt. |
