三苯基磷对PTG材料照相性能的影响

doi:10.7517/j.issn.1674-0475.2007.06.459

影像科学与光化学 ›› 2007, Vol. 25 ›› Issue (6): 459-467.DOI: 10.7517/j.issn.1674-0475.2007.06.459

• 研究简报 • 上一篇

三苯基磷对PTG材料照相性能的影响

林海莉^1,2, 曹静^1,2, 夏培杰¹, 李金培¹

1. 中国科学院, 理化技术研究所, 北京, 100080;
2. 中国科学院, 研究生院, 北京, 100039

收稿日期:2007-04-10 修回日期:2007-06-12 出版日期:2007-11-23 发布日期:2007-11-23
通讯作者: 李金培,E-mail:jpli@mail.ipc.ac.cn.
基金资助:
国家自然科学基金资助项目(20303025,20573125)

Effect of Ph₃P on Photographic Properties of PTG Materials

LIN Hai-li^1,2, CAO Jing^1,2, XIA Pei-jie¹, LI Jin-pei¹

1. Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100080, P. R. China;
2. Graduate University of the Chinese Academy of Sciences, Beijing 100039, P.R. China

Received:2007-04-10 Revised:2007-06-12 Online:2007-11-23 Published:2007-11-23

摘要/Abstract

摘要： 本文研究了三苯基磷(PPh₃)对以AgSt为银源的亲水型PTG材料照相性能的影响:PTG材料的感光度随PPh₃用量不同而变化,PPh₃用量相对较少时,感光度随PPh₃用量增加而提高;PPh₃用量增加到一定程度,感光度达到极大值;进一步增加PPh₃用量,感光度反而随PPh₃用量增加而下降.据分析结果推测,在PPh₃用量较少时,PPh₃的作用主要是打开AgSt二聚体的八元环而生成一种中间配合物,该中间体对热显影有促进作用;在PPh₃用量较多时,PPh₃的作用主要是与AgSt作用生成稳定的四元环配合物,该配合物对热显影有抑制作用.PPh₃的引入也会影响光敏元中潜影的形成效率,有利于提高感光度.

关键词: 光敏热成像, 三苯基磷, 照相性能, 中间配合物

Abstract: The effect of triphenylphosphine (PPh₃) on the photographic characters of water-base PTG materials based on silver stearate as silver sources was studied.The results showed that the sensitivity of the PTG materials elevated with increasing the PPh₃ amount at a relatively low PPh₃ content;and the sensitivity reached a maximal value with increasing the PPh₃ amount till about 10%;when continuing to increase the PPh₃ amount,however,the sensitivity decreased with increasing the PPh₃ content.The analysis results supposed that the eight-membered ring of AgSt dimer was destroyed by the addition of small amount of PPh₃,and a new intermediate compound formed which accelerated the thermal development;A four-member-ring complex composed of PPh₃ and AgSt was supposed to have formed when large amount of PPh₃ was used,and the four-member-ring complex inhibited the thermal development.The introduction of PPh₃ into PTG materials could also influence the efficiency of latent image formation for light sensitive element,which contributed to improve the sensitivity.

Key words: photothermography, triphenylphosphine, photographic character, intermediate compound

中图分类号:

林海莉, 曹静, 夏培杰, 李金培. 三苯基磷对PTG材料照相性能的影响[J]. 影像科学与光化学, 2007, 25(6): 459-467.

LIN Hai-li, CAO Jing, XIA Pei-jie, LI Jin-pei. Effect of Ph₃P on Photographic Properties of PTG Materials[J]. Imaging Science and Photochemistry, 2007, 25(6): 459-467.

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三苯基磷对PTG材料照相性能的影响

Effect of Ph₃P on Photographic Properties of PTG Materials

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