Multicanonical Monte Carlo Simulation of a Polymer with Stickers

We study the temperature dependence of the behavior of a polymer chain with stickers by using multicanonical Monte Carlo simulations. For our two-dimensional model, we performed equilibrium calculations and obtained physical quantities at low temperatures. We calculated the radius of gyration and the end-to-end distance and found that those quantities drastically change between the temperature k T / u 0 =0.1 and 0.2. As the temperature is lowered, the value of the exponent ν becomes slightly smaller than the high temperature case. We also investigated the distribution of gyration radius and winding angle.