文献类型：期刊文献

英文题名：Self-Assembly Behavior of AB/AC Diblock Copolymer Mixtures in Dilute Solution

作者：Zhuang, Ying[1];Lin, Jiaping[1];Wang, Liquan[1];Zhang, Liangshun[1]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China

年份：2009

卷号：113

期号：7

起止页码：1906

外文期刊名：JOURNAL OF PHYSICAL CHEMISTRY B

收录：;EI(收录号：20091912069565);WOS:【SCI-EXPANDED(收录号:WOS:000263299400014)】；

基金：This work was supported by the National Natural Science Foundation of China (50673026, 20574018). Support from the Doctoral Foundation of the Education Ministry of China (Grant 20050251008) and Projects of Shanghai Municipality (06SU07002, 082231, and 13502) is also appreciated.

语种：英文

外文关键词：Self assembly - Hydrophilicity - Hydrophobicity - Aggregates - Mean field theory - Molecular orbitals - Block copolymers

摘要：The self-assembly behavior of AB/AC amphiphilic diblock copolymer mixtures in dilute solution was studied by a real-space-implemented self-consistent field theory in three dimensions. The AB and AC copolymers have a common hydrophobic block A but different hydrophilic blocks B and C. Two cases were studied: one in which copolymers AB and AC have same hydrophobic and hydrophilic block lengths and one in which copolymers AB and AC have different hydrophobic and hydrophilic block lengths. It was found that the two copolymers can cooperatively self-assemble into hybrid aggregates. The morphologies of the formed aggregates were found to be dependent on the mixture ratio and the interaction between the B and C blocks. For the AB/AC copolymers with different hydrophobic and hydrophilic lengths, chain segregation was found in the formed hybrid aggregates. Based on the obtained calculation results, phase diagrams as functions of the mixture ratio and interaction between the B and C blocks were constructed.