Download Chemistry and Applications of Leuco Dyes by Hiroyuki Nakazumi (auth.), Ramaiah Muthyala (eds.) PDF

By Hiroyuki Nakazumi (auth.), Ramaiah Muthyala (eds.)

Contributions via scientists operating in foreign laboratories give you the amateur researcher with artificial information and high-technology functions of leuco dyes. masking leuco dye sessions that convey average balance, the ebook discusses photochromic fabrics that experience wide-ranging purposes in reminiscence expertise, leuco dyes for colour images, and a different category of dyes formulated by way of aid rather than the oxidation process.

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Extra info for Chemistry and Applications of Leuco Dyes

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However, it is possible to measure the thermal decay rates and activation energies at ambient temperature, since this fading reaction obeys first-order kinetics in solution. 72,77 However, these values are smaller than those of the spironaphthopyran series. 85 The order of blueshift and thermal stability of the chelated photomerocyanine is as follows: Ca2+ < Cu2+ < Pb2+. 5´-Methoxy derivative of 33 also gives Ni2+ complexes. This chelation significantly stabilizes photomerocyanine, compared with the nonchelating colored form.

Ito, S. Maeda, and K. Mitsuhashi, Jpn. Kokai Tokkyo Koho JP 02-29485 (1990) [CA 113, 68442c (1990)]. 89. S. Arakawa, H. Kondo, and J. Seto, Chem. Lett. 1805 (1985). 90. H. Nakazumi, S. Yagi, and K. Maeda, in Proc. 2nd Symp. Chem. of Funct. Dyes (Z. Yoshida and Y. ), pp. 399–404, Mita Press, Tokyo (1993). 91. H. Nakazumi, S. Yagi, and T. Asaoka, in: Proc. 2nd Symp. Chem. of Funct. Dyes (Z. Yoshida and Y. 434–437, Mita Press, Tokyo (1993). 92. M. S. Newman and H. A. Karnes, J . Org. Chem. 31, 3980 (1966).

98. M. Hirano, A. Miyashita, and H. Nohira, Chem. Lett. 209 (1991). 99. M. Hirano, A. Miyashita, and H. Nohira, 62nd Annu. Meeting of Jpn. Chem. , Abstr. 11, p. 2201 (1991). 100. S. Nagae, Special Meeting of Kinki Chem. , November, Tokyo, Abstr. p. 39 (1990). 101. M. Irie, Special Meeting of Kinki Chem. , October, Osaka, Abstr. p. 7 (1987). 1. 2 There have been many books that cover quinoid compounds as dyes and pigments but very few discuss the chemistry of the corresponding leuco dyes. Traditional vat dyes are applied to cellulosic fiber in the leuco form.

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