Citation: Ya-juan Su, Jian-hua Huang. Self-assembly Behavior of Rod-Coil-Rod Triblock Copolymers within a Planar Slit[J]. Chinese Journal of Polymer Science, ;2016, 34(7): 838-849. doi: 10.1007/s10118-016-1803-7 shu

Self-assembly Behavior of Rod-Coil-Rod Triblock Copolymers within a Planar Slit

Ya-juan Su ,
Jian-hua Huang ^,

Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China

Corresponding author: Jian-hua Huang, jhhuang@zstu.edu.cn
Received Date: 14 January 2016
Revised Date: 14 February 2016
Accepted Date: 14 February 2016

Fund Project: was financially supported by the National Natural Science Foundation of China 21574117

The self-assembly behavior of sphere-forming R₅C₃₀R₅ triblock copolymers within a planar slit is studied by performing dissipative particle dynamics simulations. A sequence of novel structures which are not observed in bulk are formed within slits, including wetting layers, island-like structure, parallel cylinders, perpendicular cylinders and cross-cylindrical structures. Perpendicular cylinders are always formed before the increase in the layers of parallel cylinders. A phase diagram of the assembled structures with respective to the slit property and height is thus presented. The rod length is found to have a significant impact on the rod alignment, and a disordered-ordered transition of rod orientation occurs with an increase in the length of rod blocks. Some special structures, such as parallel half-cylinders and arrowhead-shaped morphology, are observed when the rod length increases to a certain extent. Our results show that the property and height of the slit and rod length all influence the self-assembly of rod-coil-rod triblock copolymers.
- Self-assembly,
- Triblock copolymers,
- Slit,
- Simulation
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