Asymmetric Binary Spherical Phases Self-Assembled by Mixing AB Diblock/ABC Triblock Copolymers

• DOI: 10.1021/acs.macromol.2c02217
• Publication Date: 2023-01-12T14:29:02Z
• Authors: Wangping He; Feng Wang; Yicheng Qiang; Yuchao Pan; Weihua Li; Meijiao Liu
• Keywords: Volume fraction; Miscibility; Spinodal decomposition; Coordination sphere

The self-assembly of binary blends composed AB diblock and ABC triblock copolymers is investigated using self-consistent field theory. Specifically, the miscibility mixture studied by tuning concentration ϕ2 length ratio γ between triblock. It predicted that sphere-forming can be compatible coassembling into new spherical phases, even when close to 50%. For relatively low (0.48 < 1.13), two different are accommodated an asymmetric phase, Li3Bi, where A-sphere coformed A-blocks with similar lengths C-sphere in size. When increased larger than 1.45, have considerably lengths, they form a core–shell distribution within A-sphere. effectively enlarges factors volume fraction C-block lead formation NaCl phase symmetric coordination number. Our theoretical results demonstrate blending simple block proper provides efficient route for fabrication mesocrystals.