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本文在制备AgBr八面体乳剂初液中,加入一系列不同量的1,7,10,16-四氧-4,13-二硫代杂环十八烷(2S-18-C-6),结果由于(2S-18-C-6)与银离子产生了络合,降低了乳剂成核的过饱和度,所得乳剂的颗粒大小与加入2S-18-C-6的量成正比。由于所得乳剂颗粒大小分布产生了变化,而使乳剂的光化学性质以及介电损耗也产生了规律性的变化。同时还发现,在乳剂成熟过程中,加入含杂质原子不同的冠醚化合物1,4,7,10,13,16-六氧环十八烷(18-C-6),1,7,10,16-四氧-4,13-二氮代杂环十八烷(2N-18-C-6),N-对甲苯磺酰基-7-氮杂-1,4,10,13-四氧硫杂环十六烷(NTsTTH)对晶体的物理成熟作用有很大差异,2S-18-C-6是很好的物理成熟剂,2N-18-C-6、NTsTTH是AgBr的溶剂,18-C-6的成熟作用很弱,说明冠醚化合物对AgBr的溶解成熟作用与其环上所含杂原子有关。
In this paper, a series of different amounts of 1,7,10,16-tetraoxy-4,13-dithiacyclooctadecane (2S-18-C-6) As a result of the complexation of (2S-18-C-6) with silver ions, the supersaturation of the emulsion was reduced and the particle size of the resulting emulsion was proportional to the amount of 2S-18-C-6 added. As the resulting emulsion particle size distribution has changed, leaving the emulsion photochemical properties and dielectric loss also produced a regular change. At the same time, it was also found that in the process of emulsion maturation, the crown ethers 1,4,7,10,13,16-hexacyclooctadecane (18-C-6), 1,7,10 Tetrahydroxy-4,13-diazacyclooctadecane (2N-18-C-6), N-p-toluenesulfonyl-7-aza-1,4,10,13-tetraoxy Sulfur heterocycle hexadecane (NTsTTH) greatly influences the physical maturation of crystals. 2S-18-C-6 is a good physical maturity agent. 2N-18-C-6, NTsTTH is a solvent of AgBr, The maturation effect of -C-6 is very weak, which shows that the crown ether compound has the effect on the dissolution and maturation of AgBr and the heteroatoms contained in its ring.