Weak reversible cross links may decrease the strength of aligned fiber bundles

Autor(en)

S. Soran Nabavi, Markus A. Hartmann

Abstrakt

Reversible cross-linking is an effective strategy to specifically tailor the mechanical properties of polymeric materials that can be found in a variety of biological as well as man-made materials. Using a simple model in this paper the influence of weak, reversible cross-links on the mechanical properties of aligned fiber bundles is investigated. Special emphasis in this analysis is put on the strength of the investigated structures. Using Monte Carlo methods two topologies of cross-links exceeding the strength of the covalent backbone are studied. Most surprisingly only two cross-links are sufficient to break the backbone of a multi chain system, resulting in a reduced strength of the material. The found effect crucially depends on the ratio of inter-to intra-chain cross-links and, thus, on the grafting density that determines this ratio.

Organisation(en)

Computergestützte Physik und Physik der Weichen Materie

Externe Organisation(en)

Montanuniversität Leoben

Journal

Soft Matter

Band

12

Seiten

2047-2055

Anzahl der Seiten

9

ISSN

1744-683X

DOI

https://doi.org/10.1039/c5sm02614h

Publikationsdatum

2016

Peer-reviewed

Ja

ÖFOS 2012

103015 Kondensierte Materie

Schlagwörter

ASJC Scopus Sachgebiete

Condensed Matter Physics, Allgemeine Chemie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/3f0fa034-f8d7-4016-b05e-3496f8d25250