2006/10/10 by Haijun Zhou, Jie Zhou, Zhong-Can Ou-Yang +1 · 2 citations
Engineering · Materials Science · Mathematics · Physics and Astronomy · #Bending #Bending stiffness #Composite material #Condensed matter physics #Force Microscopy Techniques and Applications #Lattice (music) #Limiting #Materials science #Mathematics #Monte Carlo method #Nanopore and Nanochannel Transport Studies #Physics #Polymer #Polymer Surface Interaction Studies #Stiffness #Thermodynamics #cond-mat.soft
paper · pdf · doi:10.1103/physrevlett.97.158302
4 pages, 3 figures
openalex publication_date 2006/10/10 · arxiv created 2007/01/18 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
The nature of the globule-coil transition of surface-confined polymers has been an issue of debate. Here this 2D collapse transition is studied through a partially directed lattice model. In the general case of polymers with positive bending stiffness (Delta>0), the collapse transition is first order; it becomes second order only in the limiting case of zero bending stiffness (Delta triple bond 0). These analytical results are confirmed by Monte Carlo simulations. We also suggest some possible future experiments.