Mono- or bidisperse nanorods mixtures in diblock copolymers

Mixtures of diblock copolymers (DBCPs) and mono- or bidisperse nanorods (NRs), are systematically investigated via dissipative particle dynamics simulations. For the mixtures of DBCPs and monodisperse NRs, we investigate the effects of the nanorod (NR) volume fraction, NR length, and interaction str...

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Bibliographic Details
Published in:Polymer (Guilford) 2010-06, Vol.51 (14), p.3303-3314
Main Authors: He, Linli, Zhang, Linxi, Liang, Haojun
Format: Article
Language:English
Subjects:
Applied sciences
Bidisperse nanorods mixture
Composites
Copolymers
Dissipation
Dissipative particle dynamics
Dynamic tests
Dynamical systems
Exact sciences and technology
Forms of application and semi-finished materials
Guidelines
Nanocomposites
Nanorods
Polymer industry, paints, wood
Self assembly
Simulation
Technology of polymers
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Summary:Mixtures of diblock copolymers (DBCPs) and mono- or bidisperse nanorods (NRs), are systematically investigated via dissipative particle dynamics simulations. For the mixtures of DBCPs and monodisperse NRs, we investigate the effects of the nanorod (NR) volume fraction, NR length, and interaction strength between blocks and NRs on the self-assembly of the composites. For the mixtures of DBCPs and bidisperse NRs in which the NRs are different in length, the binary NRs with varied compositions can induce various morphological transitions, as well as present the uniform orientations and discriminative distributions. The inherent mechanism for driving such rich phase behaviors can be further exploited on the basis of considering the enthalpic and entropic effects. The results provide some guidelines for engineering nanocomposites with the desired morphologies and functions. [Display omitted]
ISSN:0032-3861
1873-2291
DOI:10.1016/j.polymer.2010.05.026