Flexible linear polyelectrolytes in multivalent salt solutions: Solubility conditions

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Salt-induced collapse and reexpansion of highly charged flexible polyelectrolytes.

We study the salt-dependent conformations of dilute flexible polyelectrolytes in solution via computer simulations. Low concentrations of multivalent salt induce the known conformational collapse of individual polyelectrolyte chains, but as the salt concentration is increased further this is followed by a reexpansion. We explicitly demonstrate that multivalent counterions can overcompensate the...

متن کامل

Orientationally ordered aggregates of stiff polyelectrolytes in the presence of multivalent salt

Aggregation of stiff polyelectrolytes in solution and angleand distance-dependent potential of mean force between two like-charged rods are studied in the presence of 3-valent salt using molecular dynamics simulations. In the bulk solution, formation of long-lived metastable structures with similarities to the raft-like structures of actin filaments is observed within a range of salt concentrat...

متن کامل

Precipitation of Polyelectrolytes in the Presence of Multivalent Salts

We present a theory of the complexation of polyanions by divalent cations. The formation of both mono-and dicomplexes is possible. Monocomplexation locally inverts the charge of the polyelectrolyte and transforms it into a polyampholyte. The formation of a dicomplex creates a bridge between charged monomers. The complexation constants for mono and dicomplexation strongly decrease at high ionic ...

متن کامل

Unfolding polyelectrolytes in trivalent salt solutions using dc electric fields: A study by Langevin dynamics simulations.

We study the behavior of single linear polyelectrolytes condensed by trivalent salt under the action of electric fields through computer simulations. The chain is unfolded when the strength of the electric field is stronger than a critical value. This critical electric field follows a scaling law against chain length, and the exponent of the scaling law is -0.77(1), smaller than the theoretical...

متن کامل

Reversal of bubble charge in multivalent inorganic salt solutions-effect of lanthanum

It was discovered recently that the charge of gas bubbles in aqueous solution can be reduced and even reversed by the addition of multivalent inorganic saltsIn this work. the effect of LaCI3 on the charge of bubbles was investigated and found to have an effect similar to that previously observed with AICI3 and MgC12The electrokinetic behavior of gas bubbles was affected slightly by LaCI3 additi...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: The European Physical Journal E

سال: 2001

ISSN: 1292-8941

DOI: 10.1007/s101890170123