We employ the self-consistent field theory (SCFT) with the help of Monte Carlo technique to study the scaling behavior of the radius of gyration Rg of a single polymer chain with respect to the chain length N. The numerical results indicate the scaling exponent ν≈0.495 for Θ-solvent, which is a typical ideal chain behavior. However, for good solvent cases, the ν value displays explicit dependence on the solvent quality and is always lower than the classical prediction of 0.6. We argue that such a discrepancy is mainly attributed to the finite chain length effect.
ZHANG Shuangshuang
,
MIAO Bing
,
SUO Tongchuan
. Solvent-dependence of the characteristic scaling exponent for single polymer chain with finite length[J]. Journal of University of Chinese Academy of Sciences, 2018
, 35(5)
: 602
-606
.
DOI: 10.7523/j.issn.2095-6134.2018.05.005
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