Stretched polymers in a poor solvent
نویسندگان
چکیده
منابع مشابه
Stretched polymers in a poor solvent.
Stretched polymers with attractive interaction are studied in two and three dimensions. They are described by biased self-avoiding random walks with nearest-neighbor attraction. The bias corresponds to opposite forces applied to the first and last monomers. We show that both in d=2 and d=3 a phase transition occurs as this force is increased beyond a critical value, where the polymer changes fr...
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Molecular-dynamics simulations are used to study the structure of bottlebrush polymers with rigid backbones, for various grafting densities, side chain lengths, and varying solvent quality. While we confirm different states of the bottlebrush proposed by Sheiko et al. (Eur. Phys. J. E, 13 (2004) 125) we find that the transition between stretched and collapsed brushes occurs in a rather gradual ...
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Introduction Bottlebrush polymers are macromolecules which consist of a long chain serving as “backbone” onto which flexible side chains are densely grafted. There is a lot of recent interest in both the synthesis of these macromolecules and characterization of physical properties by various experimental techniques (light and neutron scattering, atomic force microscopy, electron microscopy, etc...
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In recent years, there has been much interest in the area of statistical mechanics of semiflexible polymers. These studies have been motivated by experiments [1] on biopolymers in which single molecules are stretched and twisted to measure elastic properties. These experiments are designed to understand the role of semiflexible polymer elasticity in, for instance, the packaging of these polymer...
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When stretched uniaxially, a thin elastic sheet may exhibit buckling. The occurrence of buckling depends on the geometrical properties of the sheet and the magnitude of the applied strain. Here we show that an elastomeric sheet initially stable under uniaxial stretching can destabilize when exposed to a solvent that swells the elastomer. We demonstrate experimentally and computationally that th...
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ژورنال
عنوان ژورنال: Physical Review E
سال: 2002
ISSN: 1063-651X,1095-3787
DOI: 10.1103/physreve.65.031807