影像科学与光化学 ›› 1994, Vol. 12 ›› Issue (4): 302-306.DOI: 10.7517/j.issn.1674-0475.1994.04.302

• 研究论文 • 上一篇    下一篇

有组织介质中的偶合反应Ⅰ.油溶性成色剂的偶合活性

莫亦波1, 赵文芳1, 胡萍1, 任新民1, 姜子文2, 陈振堂2   

  1. 1. 中国科学院感光化学研究所, 北京100101;
    2. 中国乐凯胶片公司感光化学研究院, 沈阳110015
  • 收稿日期:1993-09-16 修回日期:1994-04-13 出版日期:1994-11-20 发布日期:1994-11-20
  • 通讯作者: 赵文芳

COUPLING REACTION IN ORGANIZED MEDIAⅠ.COUPLING REACTIVITY OF HYDROPHOBIC COUPLERS

MO YI-BO1, ZHAO WEN-FANG1, HU PING1, REN XIN-MIN1, JIANG ZI-WEN2, CHEN ZHEN-TANG2   

  1. 1. Institute of Photographic Chemistry, Academia Sinica, Beijing 100101, P. R. China;
    2. Institute of Photographic Chemistry, China Lucky Film Corporation, Shenyang 110015, P. R. China
  • Received:1993-09-16 Revised:1994-04-13 Online:1994-11-20 Published:1994-11-20

摘要: 本文采用连续流动装置测量,并配合数值模拟法得到表征五种油珠分散状叔戊酰苯胺型成色剂的油珠偶合活性的偶合反应比速率常数和表观偶合速率常数,同时测定了叔戊酰苯胺型成色剂油珠在胶片层中的照相活性以及表征它们在非水溶液中分子偶合活性的解离常数pKa值,并且比较了上述结果。研究表明,油珠状成色剂的反应规律与分子状成色剂的反应规律是不相同的,这是由于经过“分子组装”后的成色剂油珠在反应时不再以分子为反应单元而是以分子组装体为单元。

关键词: 油溶性成色剂, 有组织介质, 偶合反应

Abstract: The specific rate constants and apprent rate constants of coupling reations of fivedispersed pivaloylacetanilide derivative couplers, which characterize dispersion activetiesof five solvent dispersion couplers, were obtained by combining the kinetic measurementswith the numerical model.The photographic activities of solvent dispersion couplers andpKa’s, characterizing the coupling activities of molecules, of five couplers in non-aqueoussolutions were also measured.The results showed a different rule of reaction between thesolvent dispersion couplers and the molecular couplers.The dispersion coupler is consideredas a kind of assembled molecules that operate collectively.Thus, its behavior can be quitedifferent from that of individual molecules.

Key words: oil solvent coupler, the organized media, coupling reaction