Contributions of short-range and excluded-volume interactions to unperturbed polymer chain dimensions
نویسندگان
چکیده
منابع مشابه
Contributions of short-range and excluded-volume interactions to unperturbed polymer chain dimensions.
A Monte Carlo study is made of the mean-square radius of gyration for the freely rotating chain with such fictitious excluded-volume interactions that the Lennard-Jones 6-12 potentials at the Theta temperature act only between the fourth-through (3+Delta)th-neighbor beads (Delta > or = 1) along the chain. The behavior of the asymptotic value (/n)infinity of the ratio /n as a functi...
متن کاملEstimation of the Unperturbed Chain Dimensions of Poly(Vinyl Chloride) Polymer by Various Methods
Flory Fox, Kurata-Stockmayer, Berry, Inagaki-Suzuki-Kurata, Stockmayer-Fixman and Ahmad-Baloch methods based on the excluded volume theory have been applied to poly(vinyl chloride)-cyclohexanone system to obtain Kq and the radius of gyration. A discussion on the reliability of these methods is given. The Stockmayer-Fixman and Ahmad-Baloch methods are found to be...
متن کاملExcluded Volume Effects and Stretched Polymer Chains
The renormalized elasticity Jheory for jsolated flexible polymers developed recently by de Gennes is extended to the case of strong elongation ( Z / R F >> 1,Z is the average end-to-end length in response to a uniform tension and R F is the excluded volume Flory radius !fa free coil). I t is shown that, in this regime, the elastic restoring force f is nonlinear in the distortion and varies as Z...
متن کاملestimation of the unperturbed chain dimensions of poly(vinyl chloride) polymer by various methods
flory fox, kurata-stockmayer, berry, inagaki-suzuki-kurata, stockmayer-fixman and ahmad-baloch methods based on the excluded volume theory have been applied to poly(vinyl chloride)-cyclohexanone system to obtain kq and the radius of gyration. a discussion on the reliability of these methods is given. the stockmayer-fixman and ahmad-baloch methods are found to be equally applicable.
متن کاملParallel excluded volume tempering for polymer melts.
We have developed a technique to accelerate the acquisition of effectively uncorrelated configurations for off-lattice models of dense polymer melts that makes use of both parallel tempering and large-scale Monte Carlo moves. The method is based upon simulating a set of systems in parallel, each of which has a slightly different repulsive core potential, such that a thermodynamic path from full...
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: The Journal of Chemical Physics
سال: 2004
ISSN: 0021-9606,1089-7690
DOI: 10.1063/1.1774155