

浏览全部资源
扫码关注微信
新疆大学物理科学与技术学院
Published:2018
移动端阅览
[1]孔维新,陈楚.AB双亲两嵌段共聚物在选择性溶剂中的诱导自组装行为[J],2018,35(01):47-50.
[1]孔维新,陈楚.AB双亲两嵌段共聚物在选择性溶剂中的诱导自组装行为[J],2018,35(01):47-50. DOI: 10.13568/j.cnki.651094.2018.01.008.
DOI:10.13568/j.cnki.651094.2018.01.008.
本文采用基于蒙特卡罗的模拟退火方法研究了诱导界面对称性破缺对AB双亲性两嵌段共聚物在选择性溶剂中自组装行为的影响.模拟结果表明具有高对称性的诱导界面面积与附着其上的嵌段共聚物数量之比会决定胶束形貌.随着比值增大
原柱状胶束首先转变为带尾巴片状胶束接着变为片状胶束.具有低对称性的线形诱导界面虽然无法显著改变柱状胶束形貌
但是能引导柱状胶束在空间与其共线排列.希望这些规律有助于实验研究.
The directed self-assembly of amphiphilic AB diblock copolymers in selective solvents is studied via the simulated annealing method. Simulation results demonstrate that the cylindrical micelle transforms into sheet with a tail like micelle then into sheet like micelle with the increase of the number of diblock copolymers adsorbed on the directed interface with high symmetry. Linear directed interface is unable to alter micellar morphology obviously but affects the orientation of cylindrical micelle. The rules may be useful for the study in experiment.
Pochan D J.Approaching Asymmetry and Versatility in Polymer Assembly[J].Science,2012,337(6094):530-531.
Rupar P A,Chabanne L,Winnik M A,et al.Non-Centrosymmetric Cylindrical Micelles by Unidirectional Growth[J].Science,2012,337(6094):559-562.
Li W K,Liu S Q,Deng R H,et al.Encapsulation of Nanoparticles in Block Copolymer Micellar Aggregates by Directed Supramolecular Assembly[J].Angewandte Chemie International Edition,2011,50(26):5865-5868.
Bae J,Lawrence J,Miesch C,et al.Multifunctional Nanoparticle-Loaded Spherical and Wormlike Micelles Formed by Interfacial Instabilities[J].Advanced Materials,2012,24(20):2735-2741.
Xu J P,Zhu Y T,Zhu J T,et al.Ultralong gold nanoparticle/block copolymer hybrid cylindrical micelles:a strategy combining surface templated self-assembly and Rayleigh instability[J].Nanoscale,2013,5(14):6344-6349.
Li W K,Zhang P,Dai M,et al.Ordering of Gold Nanorods in Confined Spaces by Directed Assembly[J].Macromolecules,2013,46(6):2241-2248.
Nie X B,Cui J,Jiang W.Ultralong cylindrical micelles precisely located with semiconductor nanorods by solvent evaporationdriven self-assembly[J].Soft Matter,2014,40(10):8051-8059.
Xu J P,Jiang W.Confinement of Polymer-Tethered Gold Nanowires in Polymeric Colloids[J].Macromolecules,2014,47(7):2396-2403.
Wu D,Yang X N.Coarse-Grained Molecular Simulation of Self-Assembly for Nonionic Surfactants on Graphene Nanostructures[J].The Journal of Physical Chemistry B,2012,116(39):12048-12056.
Zhang J,Kong W X,Duan H M.T The directed self-assembly of amphiphilic diblock Copolymers in selective solvents[J].Journal of Dispersion Science and Technology,2017,(accepted).
Kirkpatrick S,Gelatt C D,Vecchi M P.Optimization by Simulated Annealing[J].Science,1983,220(11):671-680.
Grest G S,Soukoulis C M,Levin K.Cooling-Rate Dependence for the Spin-Glass Ground-State Energy:Implications for Optimization by Simulated Annealing[J].Physical Review Letters,1986,56(11):1148-4.
Carmesin I,Kremer K.The Bond Fluctuation Method:A New Effective Algorithm for the Dynamics of Polymers in All Spatial Dimensions[J].Macromolecules,1988,21(9):2819-2823.
Larson R G.Monte Carlo simulation of micro-structural transitions in surfactant systems[J].The Journal of Chemical Physcal,1992,96(11):7904-7918.
Metropolis N,Rosenbluth A W,Rosenbluth M N,et al.Equation of State Calculations by Fast Computing Machines[J].The Journal of Chemical Physcal,1953,21(6):1087-1092.
0
Views
205
下载量
0
CSCD
Publicity Resources
Related Articles
Related Author
Related Institution
京公网安备11010802024621