scholarly journals Kinetics of chain collapse in dilute polymer solutions: Molecular weight and solvent dependences

2007 ◽  
Vol 126 (13) ◽  
pp. 134901 ◽  
Author(s):  
Yasuyuki Maki ◽  
Toshiaki Dobashi ◽  
Mitsuo Nakata
Keyword(s):  
Molecular Weight ◽  
Polymer Solutions ◽  
Dilute Polymer Solutions ◽  
Kinetics Of

Kinetics of Coarsening and Precipitation of Dilute Polymer Solutions:  Fluorescence Study of PEO in Toluene

2002 ◽  
Vol 35 (16) ◽  
pp. 6397-6403 ◽  
Author(s):  
Susana Piçarra ◽  
Eduardo J. N. Pereira ◽  
E. N. Bodunov ◽  
J. M. G. Martinho
Keyword(s):  
Polymer Solutions ◽  
Fluorescence Study ◽  
Dilute Polymer Solutions ◽  
Kinetics Of

scholarly journals Driven Transport of Dilute Polymer Solutions through Porous Media Comprising Interconnected Cavities

2021 ◽  
Vol 5 (2) ◽  
pp. 22
Author(s):  
Karthik Nagarajan ◽  
Shing Bor Chen
Keyword(s):  
Molecular Weight ◽  
Porous Media ◽  
External Force ◽  
Polymer Solutions ◽  
Dissipative Particle Dynamics ◽  
Mean Velocity ◽  
Slip Boundary ◽  
Dilute Polymer Solutions ◽  
Linear Chains ◽  
Pressure Driven Flow

Driven transport of dilute polymer solutions through porous media has been simulated using a recently proposed novel dissipative particle dynamics method satisfying the no-penetration and no-slip boundary conditions. The porous media is an array of overlapping spherical cavities arranged in a simple cubic lattice. Simulations were performed for linear, ring, and star polymers with 12 arms for two cases with the external force acting on (I) both polymer and solvent beads to model a pressure-driven flow; (II) polymer beads only, similar to electrophoresis. When the external force is in the direction of a principal axis, the extent of change in the polymers’ conformation and their alignment with the driving force is more significant for case I. These effects are most pronounced for linear chains, followed by rings and stars at the same molecular weight. Moreover, the polymer mean velocity is affected by its molecular weight and architecture as well as the direction and strength of the imposed force.

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