Electro-optics of Polymer Nanotube Dispersions

摘要: Polyelectrolyte-stabilized polymer nanotubes with high rigidity are electro-optically characterized in the dilute and semidilute regimes. Nanotube alignment electric field subsequent orientation relaxation absence of confirmed by optical microscopy, a simple UV−vis electro-optical setup is used to detect transient light transmittance. The effects ionic strength, pulse duration, particle concentration on dynamics were systematically varied. charge-dependent field-induced interfacial polarization, particularly double layer plays predominant role thin-walled nanotube alignment, which diminishes increasing salt screening, approaching predictions for uncharged dielectric tubes. experimentally obtained rotary diffusivity from agrees theoretical predictions, negligible strength effects, indicat...