2019
DOI: 10.1021/acs.macromol.8b02577
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Control of Dynamics in Polyelectrolyte Complexes by Temperature and Salt

Abstract: The linear viscoelastic responses for a series of polyelectrolyte complexes, PECs, made from pairs of poly [3-(methacryloylamino)propyltrimethylammonium chloride], a polycation, and poly(sodium methacrylate), a polyanion, having various molecular weights were measured. Time−temperature superposition (TTS) for broad and narrow molecular weight distributions revealed entangled behavior at low salt concentration for the longer polyelectrolytes studied. All characteristic lifetimes were slowed by "sticky" dynamics… Show more

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Cited by 82 publications
(158 citation statements)
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“…17 The rheological behavior of PECs can be controlled by water, temperature, salt or pH, and various combinations of the superposition principle can be applied to the response. 6,[18][19][20] Interestingly, the mobility of water molecules 21 and PEs 6 in PECs are similarly affected by the changes in the temperature and hydration.…”
Section: Introductionmentioning
confidence: 99%
“…17 The rheological behavior of PECs can be controlled by water, temperature, salt or pH, and various combinations of the superposition principle can be applied to the response. 6,[18][19][20] Interestingly, the mobility of water molecules 21 and PEs 6 in PECs are similarly affected by the changes in the temperature and hydration.…”
Section: Introductionmentioning
confidence: 99%
“…The layers deposited with1.6 to 12 mg/mL demonstrate an unstable behavior and the removal of the adsorbed layers caused a change in the total ionic strength of the adsorbed PE layers. 38 , 39 The stable behavior of the PE layers deposited with 6 mg/mL Hg 2+ explains the charge compensation between the surface, PEs, and mercury(II). 40 For the SWASV Zn detection, deposition of the two PE bilayer with 6 mg/mL Hg 2+ is appropriate.…”
Section: Resultsmentioning
confidence: 99%
“…Here, photo‐initiating was applied to avoid the temperature effect on the dynamic structure and properties of polyelectrolyte complexes. [ 15 ] In contrast to our previous study, where a polyion‐neutral diblock copolymer was applied as template and the formed nanoparticles were stabilized by the neutral block, [ 16 ] we take PAA homopolymer as template, and select charge mixing ratios on the negative side of stoichiometry, so that the formed nanoparticles will be stabilized by the anionic charge of excess PAA. In order to find out the optimal charge ratio, we have run the one pot synthesis for different mixing ratios (PAA/cationic monomers), and find that considerable excess of PAA is indeed essential for forming stable complex coacervate nanoparticles (Figure S1, Supporting Information).…”
Section: Methodsmentioning
confidence: 99%