Amphiphilic mesogens

Mesophase formed by dissolving an amphiphilic mesogen in a suitable solvent, under appropriate conditions of concentration, temperature and pressure. 

Note 1 The essential feature of a lyotropic liquid crystal is the formation of molecular aggregates or micelles as a result of specific interactions involving the molecules of the amphiphilic mesogen and those of the solvent. 

Note 1 Examples of amphiphilic mesogens are soaps, detergents and some block copolymers. 

Note Some polymers composed of semi-rigid chains form amphiphilic mesogens. Examples polyisocyanates and (2-hydroxyethyl)cellulose. 

Formation of the Vi and V2 Mesophases and of the Non-Amphiphilic Cubic Mesophase "Smectic D . In Figures 1 and 5, the formation of the amphiphilic cubic mesophases Vi and V2 is attributed to transitional globular micellar forms which arise intermediate between the indefinitely extended fibrous (M) and lamellar (G) forms which constitute the middle and neat mesophases, respectively. With a few non-amphiphilic mesogens (19, 20, 21, 22) a cubic mesophase "smectic D is found intermediate in the thermal succession of mesophases between smectic A... 

Fig. 43 Structure of the facial amphiphilic mesogenic side-groups AO and An ...

Table 1. Comparison of the general properties of monophilic and amphiphilic mesogens.

Amphiphilic mesogen - a compound composed of molecules consisting of two parts with contrasting character, which may be hydrophilic and hydrophobic, that is lipo-phobic and lipophilic. 

Table 17. Amphiphilic mesogens by hydrophilic lateral groups [149].

Warner M, Terentjev EM (2003) Liquid crystal elastomers. Oxford University Press, Oxford Wolarz E, Eischer TH, Stumpe J (2005) Photoreorientation in liquid crystalline side-group polysiloxane with azobenzene derivative admixture. Mol Cryst Liq Cryst 437 1245-1253 Wu H, Zhang L, Xu Y, Ma Z, Shen Z, Fan X, Zhou Q (2012) Amphiphilic mesogen-jacketed liquid... 

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