Аутори:
1. Sunčica Elezović-Hadžić, University of Belgrade, Faculty of Physics, Serbia
2. Ivan Živić, Univerzitet u Kragujevcu, Prirodno-matematički fakultet, , Serbia
3. Dušanka Marčetić, Природно-математички факултет Бања Лука, Republic of Srpska, Bosnia and Herzegovina

Апстракт:
Force-induced desorption of semi-flexible linear polymers in good solvents and non- homogeneous media is studied. We apply the model of self-avoiding walk with bending rigidity on 3-simplex fractal lattice. One boundary of the lattice represents an adsorbing wall, while an external force (perpendicular to the wall) pulls the polymer from the wall. Due to the hierarchical structure of the lattice under study, the phase diagram of polymer critical behavior can be exactly studied by real-space renormalization group method. Temperature dependence of the critical force, at which desorption occurs, is obtained and discussed for various values of the bending rigidity. Influence of the force and the polymer rigidity on the nature of desorption phase transition is also analyzed. All obtained results are compared with the related previous ones.

Кључне речи:
polymers,fractals,adsorption,phase-transitions

Тематска област:
СИМПОЗИЈУМ А - Наука материје, кондензоване материје и физикa чврстог стања

Датум пријаве сажетка:
03.06.2017.

Конференцијa:
Contemporary Materials 2017 - Савремени Материјали