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Issue 23, 2016
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Polymer globule with fractal properties caused by intramolecular nanostructuring and spatial constrains

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Abstract

By means of computer simulation, we studied macromolecules composed of N dumbbell amphiphilic monomer units with attractive pendant groups. In poor solvents, these macromolecules form spherical globules that are dense in the case of short chains (the gyration radius RGN1/3), or hollow inside and obey the RGN1/2 law when the macromolecules are sufficiently long. Due to the specific intramolecular nanostructuring, the vesicle-like globules of long amphiphilic macromolecules posses some properties of fractal globules, by which they (i) could demonstrate the same scaling statistics for the entire macromolecule and for short subchains with m monomer units and (ii) possess a specific territorial structure. Within a narrow slit, the globule loses its inner cavity, takes a disk-like shape and scales as N1/2 for much shorter macromolecules. However, the field of end-to-end distance r(m) ∼ m1/2 dependence for subchains becomes visibly smaller. The results obtained were compared with the homopolymer case.

Graphical abstract: Polymer globule with fractal properties caused by intramolecular nanostructuring and spatial constrains

  • This article is part of the themed collection: Polymers
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Publication details

The article was received on 28 Mar 2016, accepted on 06 May 2016 and first published on 06 May 2016


Article type: Paper
DOI: 10.1039/C6SM00747C
Citation: Soft Matter, 2016,12, 5138-5145
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    Polymer globule with fractal properties caused by intramolecular nanostructuring and spatial constrains

    A. A. Glagoleva, V. V. Vasilevskaya and A. R. Khokhlov, Soft Matter, 2016, 12, 5138
    DOI: 10.1039/C6SM00747C

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