Photoinduced anisotropy in an azo-containing ionic liquid–crystalline polymer

Polybenzimidazole based polymeric ionic liquids possessing partial ionic character: Effects of anion exchange on their gas permeation properties

“…This is in line with the amorphous nature of rigid PBI-based PILs reported recently [26,28]. It is known that PILs possessing aliphatic backbone exhibit some crystallinity [29,38]. Present series of PILs further signify the necessity of rigid PBIbased backbone for rendering amorphous nature of PILs that is better suited for the membrane application.…”

Supramolecular design principles for efficient photoresponsive polymer–azobenzene complexes

“…irradiance. 103 They also demonstrated that both the maximum value and the kinetics of photoinduced birefringence depend on the incident inscription irradiance, 103 extremely important result to keep in mind when comparing the achieved photoorientation values by different groups done under different illumination conditions. For all these materials, the induced birefringence was essentially stable after turning off the inscription beam, which can be attributed to the rigidity of the molecular structure, with consequent high T g , possibly combined with the liquid crystallinity of the materials.…”

“…For all these materials, the induced birefringence was essentially stable after turning off the inscription beam, which can be attributed to the rigidity of the molecular structure, with consequent high T g , possibly combined with the liquid crystallinity of the materials. 93,102,103 For triazine-based molecular glasses, an analogous stabilization effect was attributed to liquid-crystalline character. 104 For the complexes of Pan et al,…”

“…103 To examine the design guidelines for ionically bonded photoresponsive materials, Bazuin and coworkers prepared the library of materials pictured in Fig. 3.…”

Solvent Manipulation of Liquid Crystal Order and Other Properties in Azo‐Containing Surfactomesogen/Poly(styrene sulfonate) Complexes

“…[2][3][4]7,8] This is the case for the construction of supramolecular side-chain LC polymers achieved by the ionic complexation of polyelectrolytes with oppositely charged surfactants, [9][10][11][12][13] with surfactomesogens (SMs), [1,[14][15][16][17][18][19] or with other ionic molecules such as ionic dyes. [6,[20][21][22][23] The ionic bond is attractive, in part, for its more robust and thermally stable character compared to the hydrogen bond in situations where these characteristics are desirable. [6,24] On the other hand, the ionic bond also results in highly viscous melts up to elevated temperatures so that equilibrium states, including LC states, can be difficult to attain.…”