Kinetics of nucleation in a dilute polymer solution
نویسندگان
چکیده
منابع مشابه
Pseudo-one-dimensional nucleation in dilute polymer solutions.
Pathogenic protein fibrils have been shown in vitro to have nucleation-dependent kinetics despite the fact that one-dimensional structures do not have the size-dependent surface energy responsible for the lag time in classical theory. We present a theory showing that the conformational entropy of the peptide chains creates a free-energy barrier that is analogous to the translational entropy bar...
متن کاملControlled nucleation from solution using polymer microgels.
Despite its widespread occurrence in nature and broad application in industrial practice, nucleation of crystalline materials remains largely unpredictable and therefore difficult to control. In this work, we demonstrate a new method to control nucleation with polymer microgels by tuning their microstructure to vary systematically the degree of nanoscopic confinement and its effects on nucleati...
متن کاملMonte-Carlo simulations of polymer crystallization in dilute solution
Polymer crystallization in dilute solution is studied by three-dimensional Monte-Carlo simulations using the bond fluctuation model. We study monodisperse chains of moderate length, intended to model recent experiments on monodisperse alkanes with length of a few hundred carbon atoms, and we also investigate chain folding of very long polymers. For monodisperse flexible chains we observe both e...
متن کاملBuckling instabilities in dilute polymer solution elastic strands
A microfluidic oscillatory cross-slot flow is used to visualize birefringent strands in dilute polystyrene solutions with high temporal resolution, focusing specifically on reversals in the flow direction. Due to polymer conformation hysteresis, the elastic strands are slow to relax and demonstrate a compressive modulus, resulting in a “buckling instability.” An elastic loop of birefringence fo...
متن کاملInteraction of cylindrical polymer brushes in dilute and semi-dilute solution
We present a systematic study of flexible cylindrical brush-shaped macromolecules in a good solvent by small-angle neutron scattering (SANS), static light scattering (SLS), and by dynamic light scattering (DLS) in dilute and semi-dilute solution. The SLS and SANS data extrapolated to infinite dilution lead to the shape of the polymer that can be modeled in terms of a worm-like chain with a cont...
متن کاملذخیره 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: Physical Review Letters
سال: 1992
ISSN: 0031-9007
DOI: 10.1103/physrevlett.68.2176