Synthesis and characterization of non-covalent liquid crystalline diblock copolymers

Self-Assembly and Hierarchies in Pyridine-Containing Homopolymers and Block Copolymers with Hydrogen-Bonded Cholesteric Side-Chains

“…We point out that previously there has been interesting work on complexation of CholHS to poly(dimethylamino ethyl methacrylate) where ionic interaction has been used for the bonding. 35 This contrasts the typically weaker and more dynamic hydrogen bonds used in this work.…”

“…32 Cholesteryl-containing compounds are common in biological materials and in synthetic materials its shape persistence in combination with chirality has encouraged to combine it in a large number of systems. [33][34][35][36][37][38][39][40][41][42] Previously it has been shown that pentadecylphenol is a particularly useful supramolecular additive, which allows selfassemblies by hydrogen bonding to pyridine containing polymers, such as poly(4-vinylpyridine) (P4VP). 13,18,43,44 Here we investigate cholesteryl hemisuccinate (CholHS) and show that it hydrogen bonds to P4VP in many respects the same way as pentadecylphenol.…”

Double-Hydrophilic Block Copolymers: Synthesis and Application as Novel Surfactants and Crystal Growth Modifiers

“…[88] PDMAEMA-block-PMAA can be applied as a precursor for the synthesis of liquid crystalline (LC) block copolymers with non covalently attached mesogens. [151] Ammonium containing mesogens and carboxylic acid containing mesogens were coupled to the PMAA and PDMAEMA block, respectively, by electrostatic interaction. This approach has several advantages compared to covalently attached mesogens offering a large variety of LC block copolymers by simple mixing with different mesogens and combining the supramolecular organization of block copolymers with liquid crystalline ordering.…”

“…Furthermore, it was found that the LC properties of the block copolymer were enhanced by the interaction of the mesogen with one copolymer block. [151] DHBCs as Novel Surfactants…”

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

“…In supramolecular LCs, ionic bonding is often used to bind together two oppositely charged components, [1][2][3][4][5][6] as an alternative to the very popular hydrogen-bonding interaction. [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.…”