Self-assembly and structural relaxation in a model ionomer melt.
J Chem Phys
; 142(8): 084903, 2015 Feb 28.
Article
en En
| MEDLINE
| ID: mdl-25725753
ABSTRACT
Molecular dynamics simulations are used to understand the self-assembly and structural relaxation in ionomer melts containing less than 10% degree of ionization on the backbone. The self-assembly of charged sites and counterions shows structural ordering and agglomeration with a range of structures that can be achieved by changing the dielectric constant of the medium. The intermediate scattering function shows a decoupling of charge and counterion relaxation at longer length scales for only high dielectric constant and at shorter length scales for all dielectric constants. Overall, the slow structural decay of counterions in the strongly correlated ionomer system closely resembles transport properties of semi-flexible polymers.
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Bases de datos:
MEDLINE
Asunto principal:
Polímeros
/
Congelación
Idioma:
En
Revista:
J Chem Phys
Año:
2015
Tipo del documento:
Article
País de afiliación:
Estados Unidos