Abstract:

Asymmetric particles have been analyzed and sorted according to size using asymmetric flow field flow fractionation (AF4) coupled to multiple-angle light scattering (MALS). This dataset reports the results of AF4/MALS and single-angle batch mode dynamic light scattering (DLS) used to characterize poly(tetrafluoroethylene) (PFTE) latex particles. These data supporting the publication: Melissa E. Collins, Erick Soto-Cantu, Rafael Cueto,* and Paul S. Russo 2014. Separation and Characterization of Poly(tetrafluoroethylene) Latex Particles by Asymmetric Flow Field Flow Fractionation with Light-Scattering Detection. Langmuir, (12), pp 3373–3380 DOI: 10.1021/la404902x.

Suggested Citation:

Russo, Paul. 2016. Dataset for: Separation and Characterization of PTFE Latex Particles by Asymmetric Flow Field Flow Fractionation with Light Scattering Detection. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/N72J68VB

Publications:

Collins, M. E., Soto-Cantu, E., Cueto, R., & Russo, P. S. (2014). Separation and Characterization of Poly(tetrafluoroethylene) Latex Particles by Asymmetric Flow Field Flow Fractionation with Light-Scattering Detection. Langmuir, 30(12), 3373–3380. doi:10.1021/la404902x

Purpose:

Practice using simple particles for a next step that will involve anisometric oil-filled and air-filled particles/bubbles stabilized by hydrophobin surfactant.

Data Parameters and Units:

fig3.opj : R_h = hydrodynaymic radius for PTFE latex particles [8,9,10,13, 16, 567 where 567 = combination of 3 fractions], diffusion from multiangle vertically polarized dynamic light scattering (DLS), q^2 = scattering vector magnitude, D_app = apparent diffusion coefficient, squared scattering vector magnitude (q^2/10^10cm^-2) D_app/10^-7cm^2s^-1. fig5.opj: slope of Dapp vs q^2, K = dD_app/dq^2 , K/cm^4s^-1, v_e/mL. fig7.opj: hydrodynamic radius from rotation depolarized DLS (Rhr, DDLS), hydrodynamic radius from translation depolarized DLS (Rht, DDLS), hydrodynamic radius from translation polarized DLS (Rht, DLS), radius/nm, v_e/mL, intensity. FIGS8_Algoflon VV vs. UV gamma L179 and L180 60 degrees_PR-Copy.xlsm: unpolorized (Uv) signal and vertically polarized (Vv) signal. FIGS9_Comparison of gamma v q^2 Hv Uv Vv Flon_PR - Copy.xlsx: decay rate, squared scattering vector magnitude (q^2/10^10cm^-2), time (units unknown), unpolarized (Uv) intensity, vertically polarized (Vv) intensity. FigS10_MalvernVsMultiangle.xlsx - hydrodynamic radius (Rh) from single angle Malvern instrument and Multi angle DLS.

Instruments:

Multi-angle static and dynamic light scattering, with added polarizers; asymmetric flow field flow fractionation; transmission electron microscopy.

Error Analysis:

As stated in main text or its supporting information; generally, correlation functions were analyzed using a model based on photon statistics; multiple-angle correlogram decay rates were analyzed by linear fitting using equal weighting at all angles. Scattering envelopes were fit using the linear portion of the initial decline of intensity vs squared scattering vector magnitude.

Individual Files: