偶氮芳烃铵衍生物的制备及性能(英文)

Preparation and Properties of Ammonium Derivatives of Azoarene

偶氮苯及其衍生物的特点在于可逆顺反异构化。为合成各种光致变色的化合物 ,将环氧乙烷环并入到偶氮苯中 ,设计出易感光中间体。首先 ,制备出一系列的 4-烷基偶氮苯 -4’ -(羟基 -2 -羟丙基三甲基 )甲基硫酸铵 ,并在水溶液中进行研究。在UV光照射下 ,偶氮衍生物的表面活性有重大改变。在光稳定态 ,顺式异构体的量约为 92 %。

WT5”BZ]:Azobenzene and its derivatives are characterized by reversible cis-trans isomerization. Photoresponsive intermediates had been designed by incorporating the oxirane ring into the azobenezene derivatives in order to synthesize various photochromic compounds. First, a series of 4-alkylazobenzene-4'-(oxy-2-hydroxypropyl)trimethylammonium methylsulfate were easily prepared and studied in aqueous solution. By irradiation of UV light, the surface activities of azo derivatives were significantly changed. At the photostationary state the quantities of cis isomers are about 92%.