|Comparison of aggregation behaviors between branched and linear block polyethers: MesoDyn simulation study|
|Gong HJ; Xu GY; Shi XF; Liu T; Sun ZW(孙祉伟); Sun ZW
|Source Publication||Colloid and Polymer Science
|Abstract||The comparison of aggregation behaviors between the branched block polyether T1107 (polyether A) and linear polyether (EO)(60)(PO)(40)(EO)(60) (polyether B) in aqueous solution are investigated by the MesoDyn simulation. Polyether A forms micelles at lower concentration and has a smaller aggregation number than B. Both the polyethers show the time-dependent micellar growth behaviors. The spherical micelles appear and then change to rod-like micelles with time evolution in the 10 vol% solution of polyether A. The micellar cluster appears and changes to pseudo-spherical micelles with time evolution in the 20 vol% solution of polyether A. However, the spherical micelles appear and change to micellar cluster with time evolution in the 20 vol% polyether B solution. The shear can induce the micellar transition of both block polyethers. When the shear rate is 1x10(5) s(-1), the shear can induce the sphere-to-rod transition of both polyethers at the concentration of 10 and 20 vol%. When the shear rate is lower than 1x10(5) s(-1), the huge micelles and micellar clusters can be formed in the 10 and 20 vol% polyether A systems under the shear, while the huge micelles are formed and then disaggregated with the time evolution in the 20 vol% polyether B system.|
|Keyword||Branched Block Polyether
Dissipative Particle Dynamics
Oxide) Triblock Copolymers
|WOS Keyword||DISSIPATIVE PARTICLE DYNAMICS
; OXIDE) TRIBLOCK COPOLYMERS
; DENSITY-FUNCTIONAL THEORY
; MESOSCOPIC SIMULATION
; MICROPHASE SEPARATION
|WOS Research Area||Chemistry
; Polymer Science
|WOS Subject||Chemistry, Physical
; Polymer Science
|Funding Organization||Natural Science Foundation of China [20573067, 20873077]
; Key Laboratory of Microgravity, Institute of Mechanics, Chinese Academy of Sciences
|Corresponding Author||Sun ZW|
Gong HJ,Xu GY,Shi XF,et al. Comparison of aggregation behaviors between branched and linear block polyethers: MesoDyn simulation study[J]. Colloid and Polymer Science,2010,288(16-17):1581-1592.
Gong HJ,Xu GY,Shi XF,Liu T,孙祉伟,&Sun ZW.(2010).Comparison of aggregation behaviors between branched and linear block polyethers: MesoDyn simulation study.Colloid and Polymer Science,288(16-17),1581-1592.
Gong HJ,et al."Comparison of aggregation behaviors between branched and linear block polyethers: MesoDyn simulation study".Colloid and Polymer Science 288.16-17(2010):1581-1592.
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