Citation: Wen-bo Jiang, Yong-yun Ji, Wen-chang Lang, Shi-ben Li, Xiang-hong Wang. Surface-induced Morphologies of ABC Star Triblock Copolymer in Spherical Cavities[J]. Chinese Journal of Polymer Science, ;2015, 33(11): 1503-1515. doi: 10.1007/s10118-015-1706-z shu

Surface-induced Morphologies of ABC Star Triblock Copolymer in Spherical Cavities

1.
Department of Physics, Wenzhou University, Wenzhou 325035, China
2.
Department of Physics, Wenzhou Vocational and Technical College, Wenzhou 325035, China

Received Date: 30 March 2015
Revised Date: 27 May 2015

Fund Project: This work was financially supported by the National Natural Science Foundation of China (Nos. 21074096, 21474076 and 31340026), the Natural Science Foundation of Zhejiang Province (Nos. Y4090174, LY12A04004, LQ12E01003 and Z13F020019), X.W thanks the funding from the Advanced Talent Program of Wenzhou.

The morphologies and phase diagrams exhibited by symmetric ABC star triblock copolymer nanoparticles are investigated on the basis of real-space self-consistent field theory. The ABC star triblock copolymers were chosen to be tiling-forming with fixed polymer parameter and the spherical boundaries were modeled using the masking technique. We first study a number of examples where the ABC triblock copolymers confined in spherical cavities with neutral surface. Then, two types of spherical cavity distinct preferential surfaces are considered, including both A-block attractive and repulsive preferential surfaces. We aim at the effects due to various spherical cavity diameters and the degree of interactions between the polymer and the spherical surface. A variety of morphologies, such as ring-like structures, concentric sphere, and irregular cylinder, were identified in phase diagrams. The results show that both the degree of interactions and spherical diameters can influence the formation of morphologies so that ring-like structures and other novel structures could be obtained.
- Morphology,
- Star triblock copolymer,
- Spherical cavity,
- SCFT
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