Document Details

Document Type : Article In Journal 
Document Title :
Novel dyes derived from hydrazones. Part 2: synthesis and characterizations of N-methyl-4-tricyanovinylidenephenyl-hydrazones
Novel dyes derived from hydrazones. Part 2: synthesis and characterizations of N-methyl-4-tricyanovinylidenephenyl-hydrazones
 
Document Language : Arabic 
Abstract : Novel tricyanovinyl derived from N-methylhydrazones have been prepared by the reaction of tetracyanoethylene and N-methylbenzylidenehydrazone, and these dyes showed absorption in the region of 500 nm. The dyes showed pronounced solvatochromic effects as the solvents polarity increased. Some of the new dyes were studied to show their aggregation properties in solution as the concentration changed. Most of the dyes studied showed change in the absorption spectrum and hence the position of the maximum absorption bands. The thermal stability of some of the prepared dyes was studied in poly(methyl methacrylate) film at 80 degrees C; the substitution on the aromatic aldehydes showed some improvement of the thermal stability of the dyes. (c) 2004 Elsevier Ltd. All rights reserved.  
Journal Name : DYES AND PIGMENTS 
Volume : 67 
Issue Number : 2 
Publishing Year : 2005 AH  
Added Date : Saturday, June 14, 2008 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
أ.د.عبد الله بن محمـد أحمـد عسيــــريAsiri AMResearcher  
.Fatani NA Researcher  
.Al-Amry KAResearcher  
.Ismail IMIResearcher  

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