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远离临界组成的聚甲基丙烯酸甲酯/苯乙烯-丙烯腈无规共聚物共混薄膜表面相分离动力学

陶荟春 ,  朱豫 ,  由吉春

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引用本文: 陶荟春, 朱豫, 由吉春. 远离临界组成的聚甲基丙烯酸甲酯/苯乙烯-丙烯腈无规共聚物共混薄膜表面相分离动力学[J]. 应用化学, 2016, 33(8): 894-899. doi: 10.11944/j.issn.1000-0518.2016.08.150362 shu
Citation:  TAO Huichun, ZHU Yu, YOU Jichun. Kinetics of Surface Phase Separation in Poly(methyl methacrylate)/Poly(styrene-ran-acrylonitrile) Blend Film with Off-critical Component[J]. Chinese Journal of Applied Chemistry, 2016, 33(8): 894-899. doi: 10.11944/j.issn.1000-0518.2016.08.150362 shu

远离临界组成的聚甲基丙烯酸甲酯/苯乙烯-丙烯腈无规共聚物共混薄膜表面相分离动力学

  • 1.

    a 吉林建筑大学基础科学部 长春 130118;

  • 2.

    b 杭州师范大学材料与化学化工学院 杭州 310036

    • 通讯作者: 由吉春, 教授; Tel:0571-28866579; E-mail:you@hznu.edu.cn; 研究方向:高分子相行为研究
  • 基金项目:

    国家自然科学基金（21234007）资助项目 

摘要: 采用温控原子力显微镜方法，在线跟踪了远离临界组成聚甲基丙烯酸甲酯/苯乙烯-丙烯腈无规共聚物（PMMA/SAN）共混薄膜的表面相分离行为，并研究了其动力学规律。结果表明，在SAN含量为70%的样品中观察到了表面相分离行为，其过程可分为早期、中期和晚期3个阶段，分别对应特征化的标度指数：早期结果验证了Cahn线性理论，即标度指数为零；中期相行为主要受“碰撞-扩散”机理控制，因此表现出1/3的标度指数；在相分离后期，流体动力学主导了相区的生长和归并行为，此时标度指数变为2/3。我们的研究结果对于深刻理解高分子相行为具有积极作用，并将对高分子薄膜加工提供必要的指导。

English

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    1. [1] Cahn J W,Hilliard J E. Free Energy of a Nonuniform System.I.Interfacial Free Energy[J]. J Chem Phys,1958,28(2):258-267.[1] Cahn J W,Hilliard J E. Free Energy of a Nonuniform System.I.Interfacial Free Energy[J]. J Chem Phys,1958,28(2):258-267.

    2. [2] Brown G,Chakrabarti A. Surface-Directed Spinodal Decomposition in a Two-Dimensional Model[J]. Phys Rev A,1992,46(8):4829-4835.[2] Brown G,Chakrabarti A. Surface-Directed Spinodal Decomposition in a Two-Dimensional Model[J]. Phys Rev A,1992,46(8):4829-4835.

    3. [3] Wu Y,Alexander F J,Lookman T,et al. Effects of Hydrodynamics on Phase Transition Kinetics in Two-Dimensional Binary Fluids[J]. Phys Rev Lett,1995,74(19):3852-3855.[3] Wu Y,Alexander F J,Lookman T,et al. Effects of Hydrodynamics on Phase Transition Kinetics in Two-Dimensional Binary Fluids[J]. Phys Rev Lett,1995,74(19):3852-3855.

    4. [4] Kubota K,Kuwahara N,Eda H,et al. Spinodal Decomposition in a Critical Isobutyric Acid and Water Mixture[J]. Phys Rev A,1992,45(15):R3377-R3379.[4] Kubota K,Kuwahara N,Eda H,et al. Spinodal Decomposition in a Critical Isobutyric Acid and Water Mixture[J]. Phys Rev A,1992,45(15):R3377-R3379.

    5. [5] Wang H,Composto R J. Thin Film Polymer Blends Undergoing Phase Separation and Wetting:Identification of Early, Intermediate, and Late Stages[J]. J Chem Phys,2000,113(22):10386-10397.[5] Wang H,Composto R J. Thin Film Polymer Blends Undergoing Phase Separation and Wetting:Identification of Early, Intermediate, and Late Stages[J]. J Chem Phys,2000,113(22):10386-10397.

    6. [6] Wang H,Composto R J. Kinetics of Surface and Interfacial Fluctuations in Phase Separating Polymer Blend Films[J]. Macromolecules,2002,35(7):2799-2809.[6] Wang H,Composto R J. Kinetics of Surface and Interfacial Fluctuations in Phase Separating Polymer Blend Films[J]. Macromolecules,2002,35(7):2799-2809.

    7. [7] Lifshitz I M,Slyozov V V. The Kinetics of Precipitation from Supersaturated Solid Solutions[J]. J Phys Chem Solids,1961,19(1/2):35-50.[7] Lifshitz I M,Slyozov V V. The Kinetics of Precipitation from Supersaturated Solid Solutions[J]. J Phys Chem Solids,1961,19(1/2):35-50.

    8. [8] Siggia E D. Late Stages of Spinodal Decomposition in Binary Mixtures[J]. Phys Rev A,1979,20(2):595-605.[8] Siggia E D. Late Stages of Spinodal Decomposition in Binary Mixtures[J]. Phys Rev A,1979,20(2):595-605.

    9. [9] Wang H,Composto R J. Wetting and Phase Separation in Polymer Blend Films:Identification of Four Thickness Regimes with Distinct Morphological Pathways[J]. Interface Sci,2003,11(2):237-248.[9] Wang H,Composto R J. Wetting and Phase Separation in Polymer Blend Films:Identification of Four Thickness Regimes with Distinct Morphological Pathways[J]. Interface Sci,2003,11(2):237-248.

    10. [10] Chung H,Composto R J. Breakdown of Dynamic Scaling in Thin Film Binary Liquids Undergoing Phase Separation[J]. Phys Rev Lett,2004,92(18):185704.[10] Chung H,Composto R J. Breakdown of Dynamic Scaling in Thin Film Binary Liquids Undergoing Phase Separation[J]. Phys Rev Lett,2004,92(18):185704.

    11. [11] García R,Pérez R. Dynamic Atomic Force Microscopy Methods[J]. Surf Sci Rep,2002,47(6):197-301.[11] García R,Pérez R. Dynamic Atomic Force Microscopy Methods[J]. Surf Sci Rep,2002,47(6):197-301.

    12. [12] Liao Y G,Su Z H,Ye X G,et al. Kinetics of Surface Phase Separation for PMMA/SAN Thin Films Studied by in Situ Atomic Force Microscopy[J]. Macromolecules,2005,38(2):211-215.[12] Liao Y G,Su Z H,Ye X G,et al. Kinetics of Surface Phase Separation for PMMA/SAN Thin Films Studied by in Situ Atomic Force Microscopy[J]. Macromolecules,2005,38(2):211-215.

    13. [13] Liao Y G,Su Z H,Sun Z Y,et al. Dewetting and Phase Behaviors for Ultrathin Films of Polymer Blend[J]. Macromol Rapid Commun,2006,27(5):351-355.[13] Liao Y G,Su Z H,Sun Z Y,et al. Dewetting and Phase Behaviors for Ultrathin Films of Polymer Blend[J]. Macromol Rapid Commun,2006,27(5):351-355.

    14. [14] Takeno H,Hashimoto T. Intermittency of Droplet Growth in Phase Separation of Off-critical Polymer Mixtures[J]. J Chem Phys,1998,108(3):1225-1233.[14] Takeno H,Hashimoto T. Intermittency of Droplet Growth in Phase Separation of Off-critical Polymer Mixtures[J]. J Chem Phys,1998,108(3):1225-1233.

    15. [15] Furukaua H. A Dynamic Scaling Assumption for Phase Separation[J]. Adv Phys,1985,34(6):703-750.[15] Furukaua H. A Dynamic Scaling Assumption for Phase Separation[J]. Adv Phys,1985,34(6):703-750.

    16. [16] Furukaua H. Scaling and the Small-Wave-Vector Limit of the Form Factor in Phase-Ordering Dynamics[J]. Phys Rev Lett,1988,61(9):1135-1138.[16] Furukaua H. Scaling and the Small-Wave-Vector Limit of the Form Factor in Phase-Ordering Dynamics[J]. Phys Rev Lett,1988,61(9):1135-1138.

    17. [17] You J C,Shi T F,Liao Y G,et al. Temperature Dependence of Surface Composition and Morphology in Polymer Blend Film[J]. Polymer,2008,49(20):4456-4461.[17] You J C,Shi T F,Liao Y G,et al. Temperature Dependence of Surface Composition and Morphology in Polymer Blend Film[J]. Polymer,2008,49(20):4456-4461.

    18. [18] Liao Y G,You J C,Li X,et al. Annealing and Quasi-Quenching Processes of Phase-Separated PMMA/SAN Thin Film Studied by in situ AFM with Hot Stage[J]. Chem J Chinese Univ,2005,26(9):1777-1779.[18] Liao Y G,You J C,Li X,et al. Annealing and Quasi-Quenching Processes of Phase-Separated PMMA/SAN Thin Film Studied by in situ AFM with Hot Stage[J]. Chem J Chinese Univ,2005,26(9):1777-1779.

    19. [19] Bray A J. Theory of Phase-Ordering Kinetics[J]. Adv Phys,1994,43(3):357-459.[19] Bray A J. Theory of Phase-Ordering Kinetics[J]. Adv Phys,1994,43(3):357-459.

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  • 收稿日期:  2015-10-13
  • 网络出版日期:  2016-01-06
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