Short-distance monomer correlations in a self-repelling polymer chain
نویسنده
چکیده
Flexible linear polymers in a good solvent may be apprOXimated as self-repelling chains. Such a chain is a critical object, having fluctuations similar to those encountered in phase transition phenomena. 1 In particular, the local density p(r) of links (monomers) has power-law correlations over distances r much longer than a link, yet much shorter than the average size of the chain24 (p( r) p( 0» 0: rtf V-3 , (1)
منابع مشابه
Long range bond-bond correlations in dense polymer solutions.
The scaling of the bond-bond correlation function P1(s) along linear polymer chains is investigated with respect to the curvilinear distance s along the flexible chain and the monomer density rho via Monte Carlo and molecular dynamics simulations. Surprisingly, the correlations in dense three-dimensional solutions are found to decay with a power law P1(s) approximately s(-omega) with omega=3/2 ...
متن کاملKinetic and microstructural studies of Cp2ZrCl2 and Cp2HfCl2-catalyzed oligomerization of higher α-olefins in mPAO oil base stocks production
Herein a quenched-flow kinetic technique was applied to calculate the rate constants of 1-hexene and 1-octene oligomerization catalyzed by the Cp2ZrCl2 and Cp2HfCl2/MAO catalyst systems, and subsequently a mechanism for the higher α-olefin oligomerization reaction was proposed. The oligomerization results showed that Zr-based catalyst in the oligomerization of 1-octene had the highest activity ...
متن کاملPolymer adsorption on reconstructed Au(001): a statistical description of P3HT by scanning tunneling microscopy and coarse-grained Monte Carlo simulations.
We report on a combined theoretical and experimental characterization of isolated Poly(3-hexylthiophene) (P3HT) chains weakly adsorbed on a reconstructed Au(001) surface. The local chain conformations of in situ deposited P3HT molecules were investigated by means of scanning tunneling microscopy. For comparison, Monte Carlo simulations of the system were performed up to a maximum chain length o...
متن کاملConformational Properties Of A Semiflexible Polymer Chain: Exact Results On A Hexagonal Lattice
We have investigated conformational properties of a linear semiflexible homopolymer chain in the bulk and adsorption desorption behaviour in the presence of an attractive impenetrable curved surface using lattice models. Since, it is understood that the essential physics associated with the conformational behavior of such polymer chains can be derived from a model of a self avoiding walk (SAW) ...
متن کاملDirected Self Avoiding Walk Model Of A Semiflexible Polymer Chain On A Rectangular Lattice And A Square Lattice
Essential physics associated with the conformational behavior of a linear semiflexible homopolymer chain have been derived from a model of directed self avoiding walk (DSAW) on a two dimensional rectangular lattice. The DSAW model has been solved analytically to study phase transitions occurring in the polymer chain and exact values of conformational properties and transition points have been r...
متن کامل