Please wait a minute...
浙江大学学报（理学版）
浙江大学学报（理学版）  2018, Vol. 45 Issue (6): 707-713    DOI: 10.3785/j.issn.1008-9497.2018.06.011
物理学     
线性三嵌段共聚物格点薄膜受限下的自组装
张乾1, 吴骥2, 余胜东2, 王向红2
1. 温州大学 数理与电子信息工程学院, 浙江 温州 325035;
2. 温州职业技术学院, 浙江 温州 325035
Self-assembly of linear triblock copolymers confined by lattice-type films
ZHANG Qian1, WU Ji2, YU Shengdong2, WANG Xianghong2
1. Department of Physics, Wenzhou University, Wenzhou 325035, Zhejiang Province, China;
2. Department of Physics, Wenzhou Vocational and Technical College, Wenzhou 325035, Zhejiang Province, China
 全文: PDF(5271 KB)   HTML  
摘要： 采用实空间自洽场理论研究了线性三嵌段共聚物在格点薄膜受限下的自组装.根据受限空间内共聚物的自组装情况，描绘了不同嵌段比下共聚物的三角相图，分析各相结构的形成机理，并详细观察三色层状与核壳柱状之间的相变过程.在受限的基础上，通过在薄膜表面施加格点型吸附势，获得了一系列聚合物微结构，发现层状结构是最稳定的相结构；当吸附强度增大时，各嵌段的自组装结构发生变化，三色层逐渐打破稳定的平行状态，转变为编织层状.当嵌段比处于某特殊范围时，聚合物还形成了新颖的球-柱结构.研究结果可为制备稳定的新型材料提供理论方案.
关键词： 线性三嵌段共聚物;  相图;  自洽场理论;  图案受限;  吸附势    
Abstract: The real-space self-consistent field theory was used to study the phase diagrams of ABC linear triblock copolymers under thin-film confinement and the rules of phase transformation. Based on the self-assembly of the copolymers in the confined space, the triangular phase diagrams of the copolymers were plotted. Then the formation mechanism of each phase structure was analyzed, and the phase transition between the three-color layered and core-shell columns was investigated in detail. A series of microstructures were obtained by applying lattice-type adsorption potentials to the surface of the film. It was found that the lamellar structure was the most stable one in the phase diagram. As the strength of adsorption increased, the self-assembly structure of each block started to be distinguished from that with weak absorption. The parallel state of tricolor lamellas was gradually broken down and translated to knitting pattern structure. The copolymers also formed a novel phase-sphere-column structure within specific block ratio range. All these discoveries provide theoretical solutions for the preparation of new stable materials.
Key words: linear triblock copolymer    phase diagram    self-consistent field theory    pattern confinement    adsorption potential
收稿日期: 2018-04-05 出版日期: 2018-11-25
CLC:  O631.1  
基金资助: 国家自然科学基金资助项目（21674082，21474076，11875205）；浙江省自然科学基金资助项目（LZ13F020003）.
通讯作者: 王向红,ORCID:http://orcid.org/0000-0003-3165-814X,E-mail:wxh@wzvtc.edu.cn.     E-mail: wxh@wzvtc.edu.cn
作者简介: 张乾(1992-),ORCID:http://orcid.org/0000-0001-5888-5778,男,硕士研究生,主要从事高分子物理研究.
服务　　
把本文推荐给朋友
加入引用管理器
E-mail Alert
RSS
作者相关文章　　
张乾
吴骥
余胜东
王向红

引用本文:

张乾, 吴骥, 余胜东, 王向红. 线性三嵌段共聚物格点薄膜受限下的自组装[J]. 浙江大学学报（理学版）, 2018, 45(6): 707-713.

ZHANG Qian, WU Ji, YU Shengdong, WANG Xianghong. Self-assembly of linear triblock copolymers confined by lattice-type films. Journal of Zhejiang University (Science Edition), 2018, 45(6): 707-713.

链接本文:

https://www.zjujournals.com/sci/CN/10.3785/j.issn.1008-9497.2018.06.011    或    https://www.zjujournals.com/sci/CN/Y2018/V45/I6/707

[1] HAMLEY I W. Ordering in thin films of block copolymers:Fundamentals to potential applications[J]. Progress in Polymer Science, 2009, 34(11):1161-1210.
[2] KIM H C, PARK S M, HINSBERG W D. Block copolymer based nanostructures materials, processes, and applications to electronics[J]. Chemical Reviews, 2010, 110(1):146-177.
[3] SHI A C, LI B H. Self-assembly of diblock copolymers under confinement[J]. Soft Matter, 2013, 9(5):1398-1413.
[4] MASTEN M W, SCHICH M. Stable and unstable phases of a diblock copolymer melt[J]. Physical Review Letters, 1994, 72(16):2660-2663.
[5] BATES F S, FREDRICKSON G H. Block copolymer-designer soft materials[J]. Physics Today, 1999, 52(2):32-38.
[6] ZHENG W, WANG Z G. Morphology of ABC triblock copolymers[J]. Macromolecules, 1995, 28(21):7215-7223.
[7] TANG P, QIU F, ZHANG H, et al. Morphology and phase diagram of complex block copolymers:ABC linear triblock copolymers[J]. Physical Review E, 2004, 69(3):031803.
[8] HERMEL T J, WU L F, HAHN S F,et al. Shear-induced lamellae alignment in matched triblock and pentablock copolymers[J]. Macromolecules, 2002, 35(12):4685-4689.
[9] STANGLER S, ABETZ V. Orientation behavior of AB and ABC block copolymers under large amplitude oscillatory shear flow[J]. Rheologica Acta, 2003, 42(6):569-577.
[10] HORVAT A, LYAKHOVA K S, SEVINK G J A, et al. Phase behavior in thin films of cylinder-forming ABA block copolymers:Mesoscale modeling[J]. J Chem Phys, 2004, 120(2):1117-1126.
[11] LIEDEL C, PESTER C W, RUPPEL M, et al. Beyond orientation:The impact of electric fields on block copolymers[J]. Macromolecular Chemistry and Physics, 2012, 213(3):259-269.
[12] TAKAHASHI H, LAACHI N, DELANEY K T, et al. Defectivity in laterally confined lamella-forming diblock copolymers:Thermodynamic and kinetic aspects[J]. Macromolecules, 2012, 45(15):6253-6265.
[13] STEWART-SLOAN C R, THOMAS E L. Interplay of symmetries of block polymers and confining geometries[J]. European Polymer Journal, 2011, 47(4):630-646.
[14] MATATSUSHITA Y. Creation of hierarchically ordered nanophase structures in block polymers having various competing interactions[J]. Macromolecules, 2007, 40(4):771-776.
[15] MARSH C A, BACKX G, ERNST M H. Static and dynamic properties of dissipative particle dynamics[J]. Physical Review E, 1997, 56(2):1676-1691.
[16] SIDES S W, FREDRICKSON G H. Parallel algorithm for numerical self-consistent field theory simulations of block copolymer structure[J]. Polymer, 2003, 44(19):5859-5866.
[17] CHEN P, HE X, LIANG H. Effect of surface field on the morphology of a symmetric diblock copolymer under cylindrical confinement[J]. Journal Chemical Physics, 2006, 124(10):104906.
[18] YU B, SUN P, CHEN T, et al. Confinement-induced novel morphologies of block copolymers[J]. Physical Review Letter, 2006, 96(13):138306.
[19] XIAO X, HUANG Y, LIU H, et al. Morphology transition of block copolymers under curved confinement[J]. Macromolecular Theory and Simulations, 2007, 16(8):166-177.
[20] LIN B, ZHANG H, QIU F, et al. Self-assembly of ABC star triblock copolymer thin films confined with a preferential surface:A self-consistent mean field theory[J]. Langmuir, 2010, 26(24):19033-19044.
[21] LI Z, DORMIDONTOVA E E. Kinetics of diblock copolymer micellization by dissipative particle dynamics[J]. Macromolecules, 2010, 43(7):3521-3531.
[22] NAGPAL U, DETCHEVERRY A F, NEALEY P F, et al. Morphologies of linear triblock copolymers from monte carlo simulations[J]. Macromolecules, 2011, 44(13):5490-5497.
[23] LI Y C, LIU H, HUANG X R, et al. Evaporation-and surface-induced morphology of symmetric diblock copolymer thin films:A multibody dissipative particle dynamics study[J]. Molecular Simulation, 2011, 37(10):875-883.
[24] QIU W, HE L, JI Y, et al. Phase diagrams of ABC linear triblock copolymers under nanopore confinements[J]. Polymer, 2012, 53(15):3392-3402.
[25] MABLE C J, THOMPSON K L, DERRY M J, et al. ABC triblock copolymer worms:Synthesis, characterization, and evaluation as pickering emulsifiers for millimeter-sized droplets[J]. Macromolecules, 2016, 49(20):7897-7907.
[26] MISICHRONIS K, CHEN J, KAHK J K, et al. Diblock copolymers of polystyrene-b-poly(1,3-cyclohexadiene) exhibiting unique three-phase microdomain morphologies[J]. Polymer Physics, 2016, 54(16):1564-1572.
[27] 余勇, 王向红, 朗文昌, 等.表面场诱导线性三嵌段共聚物薄膜的微结构及其转变规律[J]. 高分子学报, 2016, 7:955-962 YU Y, WANG X H, LANG W C, et al. Microstructures and transformation of linear triblock copolymer films induced by surface field[J]. Acta Polymerica Sinica, 2016,7:955-962.
[28] KHANNA V, COCHRAN E W, HEXEMER A, et al. Effect of chain architecture and surface energies on the ordering behavior of lamellar and cylinder forming block copolymers[J]. Macromolecules, 2006, 39(26):9346-9356.
[29] TZEREMES G, RASMUSSEN K, LOOKMAN T, et al. Efficient computation of the structural phase behavior of block copolymers[J]. Physical Review E, 2002, 65(4 Pt 1):041806.
[30] DROLET F, FREDRICKSON G H. Combinatorial screening of complex block copolymer assembly with self-consistent field theory[J]. Physical Review Letters, 1999, 83(21):4317-4320.
[31] JIANG Y, YAN X Y, LIANG H J, et al. Effect of polydispersity on the phase diagrams of linear ABC triblock copolymers in two dimensions[J]. Journal of Physical Chemistry B, 2005, 109(44):21047-21055.
[32] HE L L, ZHANG L L, LIANG H J. Microdomain morphology of lamella-forming diblock copolymer confined in a thin film[J]. Journal of Polymer Science,Part B:Polymer Physics, 2009, 47(1):1-10.
No related articles found!