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We have synthesized and investigated a number of new type of the azobenzene derivatives containing alkoxycarboxylic group and N-substituted sulfonamide moiety at the opposite end of the molecule. The influence of the end group substituents on the reversible trans/cis photoisomerization process has been investigated. The photoisomerization process of studied azobenzene derivatives dominates both in chloroform solution and in PMMA polymer host-guest films. The values of the densities aredoi:10.2478/v10161-011-0058-4 fatcat:qjjpl7f76rgqfppyu4b2nzi4f4