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Journal articles
Contribution of flow field flow fractionation with on line static and dynamic light scattering to the study of hydrosoluble polyelectrolyte complexes
Abstract : Water soluble polyelectrolyte complexes (PECs) formed between polyaspartate (anionic polymer) and poly(trimethylammonium propyl methacrylamide chloride) (cationic polymer) were studied by flow field flow fractionation with on-line coupling multi-angle laser light scattering–quasi elastic light scattering–differential refractive index determination (F4/MALLS/QELS/DRI). The separation technique permits to characterize polydisperse PECs. The molar mass of the polycation (PC) influences the stiffness of the PECs and the proportion between single PECs (i.e. nPA/1PC) and multiple PECs (i.e. nPA/n’PC). High ionic strength with NaCl (>0.1 M) tends to break the multiple PECs while CaCl2 destroys PECs and leads to the formation of complexes polyaspartate/Ca2+. The studied PECs can be used as inhibitors to the calcite formation in the drilling fluids.
https://hal-normandie-univ.archives-ouvertes.fr/hal-01866829
Contributor : Luc Picton <>
Submitted on : Monday, September 3, 2018 - 4:24:12 PM
Last modification on : Tuesday, January 26, 2021 - 8:14:03 AM
Contributor : Luc Picton <>
Submitted on : Monday, September 3, 2018 - 4:24:12 PM
Last modification on : Tuesday, January 26, 2021 - 8:14:03 AM
