| Title | Self-Assembly and Photoresponsivity Property of Amphiphilic ABA Triblock Copolymers Containing Azobenzene Moieties in Dilute Solution |
| Authors | Tang, Xinde Gao, Longcheng Fan, Xinghe Liang, Xiaochao Zhou, Qifeng |
| Affiliation | Shanghai Jiao Tong Univ, Inst New Mat, Jinan 250023, Peoples R China. Peking Univ, Dept Polymer Sci & Engn, Key Lab Polymer Chem & Phys, Coll Chem & Mol Engn,BNLMS,Minist Educ, Beijing 100871, Peoples R China. |
| Keywords | amphiphiles atom transfer radical polymerization (ATRP) azo polymers block copolymers photoresponsivity self-assembly TRANSFER RADICAL POLYMERIZATION DIBLOCK COPOLYMERS MULTIPLE MORPHOLOGIES BLOCK-COPOLYMERS PHASE-SEPARATION MICELLES VESICLES BEHAVIOR AGGREGATION POLYMERS |
| Issue Date | 2009 |
| Publisher | 大分子化学与物理 |
| Citation | MACROMOLECULAR CHEMISTRY AND PHYSICS.2009,210,(18),1556-1562. |
| Abstract | The self-assembly and photoresponsivity of amphiphilic azobenzene-containing ABA triblock copolymers PA6C(m)-b-PEG(n)-b-PA6C(m) synthesized by atom transfer radical polymerization (ATRP) were reported. Different self-assembly morphologies formed by the gradual addition of water to the copolymer solutions in THF. The formation process and aggregate morphology were characterized by UV-Visible spectroscopy and transmission electron microscope (TEM). The triblock copolymers start to form aggregates at the critical water content (CWC). With the addition of water, the aggregates show different morphologies, such as spherical micelles, vesicles, network-like aggregates, and colloidal spheres, which involves the transformation between primary and secondary aggregates and the association/disassociation of aggregates. Photoresponsive property and aggregation behavior of these copolymers in solution under UV-Visible light irradiation were also investigated. |
| URI | http://hdl.handle.net/20.500.11897/151381 |
| ISSN | 1022-1352 |
| DOI | 10.1002/macp.200900277 |
| Indexed | SCI(E) |
| Appears in Collections: | å å¦ä¸ å å å·¥ç¨ å¦é ¢ 高分子化学与物理教育部重点实验室 |
