Synthesis and properties of a second-order nonlinear optical side-chain polyimide

Synthesis and properties of some polyethers from chalcones

“…The published results showed that polymers containing chalcone group have the ability to graft among different polymer chains when exposed to UV radiation. [7][8][9] Derived polymers of chalcone are widely applied to various fields such as microscopy, [12][13] photosensitive materials, nonlinear optical materials, [14][15][16] crystal displays liquid. [17][18][19] Byung-Hak Kim et al had produced melanin by the chalcone derivative 1-(2-cyclohexylmethoxy-6hydroxy-phenyl)-3-(4-hydroxymethyl-phenyl)-propenone (chalcone-21) and this chalcone-21 may be a useful anti-melanogenic agent and effective to the treatment of aesthetic problems and hyperpigmentation disorders.…”

Preparation and polymerization of chalcone substituted aniline and investigation of impedance properties

“…Polymer containing pendant α,β-unsaturated carbonyl groups (also named chalcone groups, e.g., cinnamoyl groups) either in the backbone or as pendant group undergo crosslinking upon irradiation with UV light or an electron beam, and is being used as photoresists in the field of printing technology [4], microlithography [5], non-linear optical materials [6], holographic head-up display [7], liquid crystals [8,9], energy exchange materials [10], etc.…”

Preparation and characterization of chiral polyacrylates end‐capped with bornyl groups in the side chains

“…The duality of properties provides enormous potential for material applications in various fields such as nonlinear optics14–17 and optical data storage 18–21. Moreover, since 1984, when Shibaev et al22 reported the first chiral side‐chain liquid‐crystalline polymer, a wide range of candidate materials have been synthesized, and their liquid‐crystalline characteristics and electrooptic properties have been studied 23–28. Much research has been done on the thermal and optical characteristics of side‐chain cholesteric polymers because the polymeric materials show good processability in comparison with low‐molecular‐mass cholesteric materials and exhibit long‐term stability of the cholesteric mesogenic order at temperatures below the glass‐transition temperature ( T g ) 29–31…”

“…18 -21 Moreover, since 1984, when Shibaev et al 22 reported the first chiral side-chain liquid-crystalline polymer, a wide range of candidate materials have been synthesized, and their liquid-crystalline characteristics and electrooptic properties have been studied. [23][24][25][26][27][28] Much research has been done on the thermal and optical characteristics of side-chain cholesteric polymers because the polymeric materials show good processability in comparison with low-molecular-mass cholesteric materials and exhibit long-term stability of the cholesteric mesogenic order at temperatures below the glass-transition temperature (T g ). 29 -31 It is well known that azobenzene undergoes isomerization from trans to cis under light irradiation, whereas the cis form can return to the trans form either photochemically or thermally.…”