Optically active polymer particles with programmable surface microstructures constructed using chiral helical polyacetylene

Abstract

Micro/nano-particles with surface microstructures have attracted tremendous attention due to their fascinating structures and properties. Herein, we present the first strategy for producing optically active polymer particles with varying surface...

Size Control of Chiral Nanospheres Obtained via Nanoprecipitation of Helical Poly(phenylacetylene)s in the Absence of Surfactants

“…In this work, we have demonstrated by using a library of PPAs [poly- (1)(2)(3)(4)(5)(6)(7)(8)(9)] that nanoprecipitation in the absence of surfactants at different acetone/water or THF/water ratios can be a useful and robust methodology to generate stable chiral polymer particles with tunable size. The only requirement observed during these studies is the use of PPAs with a non-stretched helical scaffold (ω 1 < 165°).…”

“…Polymer-based chiral nanostructures have recently been studied by the scientific community due to the combination of chirality and nanotechnology, allowing the creation of new materials with interesting applications in catalysis, photonics, sensors, drug-delivery or bioimaging. [1][2][3][4][5][6][7][8][9] From these materials it is possible to create micelles, nanospheres or capsules, where the size and morphology control is a very important issue due to the properties associated to these parameters such as the surface area, diffusibility and mobility. Dynamic helical polymers show interesting stimuli-responsive properties [37] that allow controlling their helical sense and/or elongation.…”

Size Control of Chiral Nanospheres Obtained via Nanoprecipitation of Helical Poly(phenylacetylene)s in the Absence of Surfactants

“…In this work, we have demonstrated by using a library of PPAs [poly- (1)(2)(3)(4)(5)(6)(7)(8)(9)] that nanoprecipitation in the absence of surfactants at different acetone/water or THF/water ratios can be a useful and robust methodology to generate stable chiral polymer particles with tunable size. The only requirement observed during these studies is the use of PPAs with a non-stretched helical scaffold (ω 1 < 165°).…”

“…Polymer-based chiral nanostructures have recently been studied by the scientific community due to the combination of chirality and nanotechnology, allowing the creation of new materials with interesting applications in catalysis, photonics, sensors, drug-delivery or bioimaging. [1][2][3][4][5][6][7][8][9] From these materials it is possible to create micelles, nanospheres or capsules, where the size and morphology control is a very important issue due to the properties associated to these parameters such as the surface area, diffusibility and mobility. Dynamic helical polymers show interesting stimuli-responsive properties [37] that allow controlling their helical sense and/or elongation.…”

Synthesis and Application of Fluorescent Polymer Micro‐ and Nanoparticles

“…Polymer micro/nanoparticles, as a powerful class of materials, have aroused significant interest by virtue of their wide range of applications in photonics, electronics, sensors, catalysis, drug delivery, bioimaging, coatings, etc. [1][2][3][4][5][6] Compared with other forms of polymer materials, such as bulk materials and films, polymer particles exhibit advantages like small size (micro/ nanoscale), large specific surface areas, as well as tunable properties. These attractive properties have stimulated researchers to develop a series of strategies to construct polymer particles that can meet specific needs.…”