Phase transition of a symmetric diblock copolymer induced by nanorods with different surface chemistry

We investigate the phase transition of a symmetric diblock copolymer induced by nanorods with different surface chemistry. The results demonstrate that the system occurs the phase transition from a disordered structure to ordered parallel lamellae and then to the tilted layered structure as the numb...

Full description

Saved in:
Bibliographic Details
Published in:The Journal of chemical physics 2017-01, Vol.146 (2), p.024902
Main Authors: Guo, Yu-qi, Pan, Jun-xing, Sun, Min-na, Zhang, Jin-jun
Format: Article
Language:English
Subjects:
Block copolymers
Lamellar structure
Magnetic properties
Nanorods
Optical properties
Order parameters
Organic chemistry
Phase transitions
Physics
Polymerization
Polymers
Surface chemistry
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We investigate the phase transition of a symmetric diblock copolymer induced by nanorods with different surface chemistry. The results demonstrate that the system occurs the phase transition from a disordered structure to ordered parallel lamellae and then to the tilted layered structure as the number of rods increases. The dynamic evolution of the domain size and the order parameter of the microstructure are also examined. Furthermore, the influence of rod property, rod-phase interaction, rod-rod interaction, rod length, and polymerization degree on the behavior of the polymer system is also investigated systematically. Moreover, longer amphiphilic nanorods tend to make the polymer system form the hexagonal structure. It transforms into a perpendicular lamellar structure as the polymerization degree increases. Our simulations provide an efficient method for determining how to obtain the ordered structure on the nanometer scales and design the functional materials with optical, electronic, and magnetic properties.
ISSN:0021-9606
1089-7690
DOI:10.1063/1.4973560