Synthesis and photochromic behavior of new polyimides containing azobenzene side groups

Polyazomethine with m-tolylazo side groups: thermal, dielectric and conductive behaviour

“…The presence of a large band at 363 nm and a small band at 453 nm were assigned to the π-π* and n-π* electronic transitions, respectively, due to the different amount of trans-and cis-isomers, as reported in [25,26].…”

Synthesis and characterization of photoactive poly(arylene ether sulfone)s containing azobenzene moieties in their main chains

“…Formation of photoinduced SRGs was one of the most interesting properties of azo-polymers in recent years [3][4][5][30][31][32][33]. By exposure of the polymer film to the interfering laser beams, SRGs are formed on the film at a temperature well below its T g value.…”

“…Polymers bearing azobenzene moieties (azo-polymers) are fascinating materials and have attracted considerable attention in recent years because of their unique reversible photo-isomerization and photoinduced anisotropy properties [3][4][5][6][7][8]. The photoinduced isomerization and anisotropy can cause significant bulk, surface property variation and polarity of the polymers, such as photoinduced phase transition, photoinduced surface relief gratings (SRGs) and photoinduced birefringence [9][10][11][12][13][14][15], which show potential applications in fields such as optical data storage, optical switching and nonlinear optical materials [16][17][18][19][20][21][22][23].…”

Effect of Nanoparticle Size on the Interface Bond Energy in KTa0.5Nb0.5O3/Polyimide Composites

“…Many works show that the sizes of the doping particles and the surface interaction of polymers and inorganic nanoparticles play a key role for the properties improvement of the composites [12,13]. Zhong et al, found that the size of doping calcium carbonate particles have close relationship with the toughening effect to the PVC composites [14].…”