Mechanical response of hybrid cross-linked networks to uniaxial deformation: A molecular dynamics model

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F14%3APU112493" target="_blank" >RIV/00216305:26620/14:PU112493 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1021/ma501504z" target="_blank" >http://dx.doi.org/10.1021/ma501504z</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/ma501504z" target="_blank" >10.1021/ma501504z</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Mechanical response of hybrid cross-linked networks to uniaxial deformation: A molecular dynamics model

Popis výsledku v původním jazyce

Networks combining physical and covalent chemical cross-links can exhibit a large amount of dissipated inelastic energy along with high stretchability during deformation. We present our analysis of the influence of the extent of covalent cross-linking on the inelasticity of hydrogels. Four model networks, which are similar in structure but strongly differ in elasticity, have been studied. The aim was the identification of a key structural factor responsible for observing a hysteresis or an elastic deformation. In the employed molecular dynamics study this factor is derived from the underlying structure of each particular hydrogel network. Several structural characteristics have been investigated like the extent of damage to the network, chains sliding, and the specific properties of load-bearing chains. By means of such a key factor, one can predict the deformation behavior (hysteresis or elasticity) of some material, provided a precise description of its structure exists and it resembles any of the four types of a network. The results can be applied in the design of bio-inspired materials with tailored properties.

Název v anglickém jazyce

Mechanical response of hybrid cross-linked networks to uniaxial deformation: A molecular dynamics model

Popis výsledku anglicky

Networks combining physical and covalent chemical cross-links can exhibit a large amount of dissipated inelastic energy along with high stretchability during deformation. We present our analysis of the influence of the extent of covalent cross-linking on the inelasticity of hydrogels. Four model networks, which are similar in structure but strongly differ in elasticity, have been studied. The aim was the identification of a key structural factor responsible for observing a hysteresis or an elastic deformation. In the employed molecular dynamics study this factor is derived from the underlying structure of each particular hydrogel network. Several structural characteristics have been investigated like the extent of damage to the network, chains sliding, and the specific properties of load-bearing chains. By means of such a key factor, one can predict the deformation behavior (hysteresis or elasticity) of some material, provided a precise description of its structure exists and it resembles any of the four types of a network. The results can be applied in the design of bio-inspired materials with tailored properties.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10404 - Polymer science

Projekt

<a href="/cs/project/ED1.1.00%2F02.0068" target="_blank" >ED1.1.00/02.0068: CEITEC - central european institute of technology</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

MACROMOLECULES

ISSN

0024-9297

e-ISSN

1520-5835

Svazek periodika

47

Číslo periodika v rámci svazku

24

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

13

Strana od-do

8795-8807

Kód UT WoS článku

000347138300037

EID výsledku v databázi Scopus

2-s2.0-84919819954