Results 21 to 30 of about 1,069,658 (152)

Topological Entanglement of Polymers and Chern-Simons Field Theory [PDF]

open access: yes, 1998
In recent times some interesting field theoretical descriptions of the statistical mechanics of entangling polymers have been proposed by various authors.
Brereton M G   +21 more
core   +2 more sources

Poly(amido amine)s as Gene Delivery Vectors: Effects of Quaternary Nicotinamide Moieties in the Side Chains [PDF]

open access: yes, 2008
To evaluate the effect of quaternary nicotinamide pendant groups on gene delivery properties, a series of poly(amido amine) (co)polymers were synthesized by Michael addition polymerization of N, N-cystaminebisacrylamide with variable ratios of 1-(4 ...
Engbersen, Johan F.J.   +4 more
core   +3 more sources

Crystalline Polymers with Exceptionally Low Thermal Conductivity Studied using Molecular Dynamics [PDF]

open access: yes, 2015
Semi-crystalline polymers have been shown to have greatly increased thermal conductivity compared to amorphous bulk polymers due to effective heat conduction along the covalent bonds of the backbone.
Minnich, Austin J., Robbins, Andrew B.
core   +2 more sources

Interfacial Interaction Enhanced Rheological Behavior in PAM/CTAC/Salt Aqueous Solution—A Coarse-Grained Molecular Dynamics Study [PDF]

open access: yes, 2020
Interfacial interactions within a multi-phase polymer solution play critical roles in processing control and mass transportation in chemical engineering. However, the understandings of these roles remain unexplored due to the complexity of the system. In
Chen, Fei   +8 more
core   +1 more source

Polymers Pushing Polymers: Polymer Mixtures in Thermodynamic Equilibrium with a Pore [PDF]

open access: yesBiophysical Journal, 2012
We investigate polymer partitioning from polymer mixtures into nanometer size cavities by formulating an equation of state for a binary polymer mixture assuming that only one (smaller) of the two polymer components can penetrate the cavity. Deriving the partitioning equilibrium equations and solving them numerically allows us to introduce the concept ...
V. Adrian Parsegian   +4 more
openaire   +7 more sources

Hydrodynamics of polymers in an active bath

open access: yes, 2020
The conformational and dynamical properties of active polymers in solution are determined by the nature of the activity, and the behavior of polymers with self-propelled, active Brownian particle-type monomers differs qualitatively from that of polymers ...
Eisenstecken, Thomas   +3 more
core   +1 more source

Proteins and polymers [PDF]

open access: yesThe Journal of Chemical Physics, 2005
Proteins, chain molecules of amino acids, behave in ways which are similar to each other yet quite distinct from standard compact polymers. We demonstrate that the Flory theorem, derived for polymer melts, holds for compact protein native state structures and is not incompatible with the existence of structured building blocks such as α helices and β ...
BANAVAR JR, HOANG TX, MARITAN, AMOS
openaire   +5 more sources

Semiflexible polymers in a random environment

open access: yes, 2004
We present using simple scaling arguments and one step replica symmetry breaking a theory for the localization of semiflexible polymers in a quenched random environment.
Dua, Arti, Vilgis, Thomas A.
core   +1 more source

Ladder polymers for use as high temperature stable resins or coatings [PDF]

open access: yes, 1990
An object of the invention is to synthesize a new class of ladder and partial ladder polymers. In accordance with the invention, the new class of ladder and partial ladder polymers are synthesized by polymerizing a bis-dienophile with a bis-diene ...
Meador, Mary Ann
core   +1 more source

Interaction of cultured human endothelial cells with polymeric surfaces of different wettabilities [PDF]

open access: yes, 1985
The in vitro interaction of human endothelial cells (HEC) and polymers with different wettabilities in culture medium containing serum was investigated. Optimal adhesion of HEC generally occurred onto moderately wettable polymers.
Aken, W.G. van   +5 more
core   +2 more sources

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