Piezoelectric poly(lactide) stereocomplexes with a cholinium organic ionic plastic crystal

Abstract

Poly(lactic acid) (PLA) stereocomplex (SC) crystallites produced at room temperature directly from high molecular weight PLLA by incorporation of choline dihydrogen phosphate ([Ch][DHP]) can display intrinsic piezoelectricity.

Influence of cellulose nanocrystal surface functionalization on the bending response of cellulose nanocrystal/ionic liquid soft actuators

“…These results indicate that composite films are composed by crystalline CNC together with amorphous ionic liquid regions, where no long-range order chlorine structures are formed. 32 This predominantly amorphous structure surrounded by CNCs is consistent with the morphological observations obtained by AFM and is suitable towards the development of bending actuators, where materials with significant amorphous content are preferred, allowing higher ionic mobility and bendability.…”

Effect of molecular weight of polyethylene glycol on crystallization behaviors, thermal properties and tensile performance of polylactic acid stereocomplexes

“…Later this blend was called PLA stereocomplex. [15][16][17] The crystal structure of PLLA and PDLA is the a crystal form, and the crystal structure of the stereocomplex is a special b crystal form, which belongs to the triclinic lattice and exists in a spiral structure. The unit cell parameter is a ¼ b ¼ 0.916 nm, c ¼ 0.870 nm, a ¼ b ¼ 109.2 , and g ¼ 109.8 .…”

Ionic Liquid–Poly(lactic acid) Blends as Green Polymer Electrolyte Membranes

“…The low conductivity mainly results from proton transport along with water molecules adsorbed on its hydrophobic surface. 12 However, by incorporating an IL such as choline dihydrogen phosphate ([Ch][DHP]), the conductivity increases by 2 orders of magnitude under water vapor-saturated conditions. In this paper, one recovers this approach to develop novel ionic conducting polymers by mixing PLA with alternative ILs, displaying high electrochemical and thermal stability and high ionic conductivity based on 1-alkyl-3methylimidazolium cations (denoted as [C n C 1 im] + ).…”

“…In a previous work, we have demonstrated that PLA is a poor ionic conductor even under high humidity conditions. The low conductivity mainly results from proton transport along with water molecules adsorbed on its hydrophobic surface . However, by incorporating an IL such as choline dihydrogen phosphate ([Ch]­[DHP]), the conductivity increases by 2 orders of magnitude under water vapor-saturated conditions.…”