聚甲基丙烯酸甲酯/苯乙烯-丙烯腈无规共聚物薄膜表面原位原子力显微镜相图

应用化学, 2014, 31(1): 29-32. doi: 10.3724/SP.J.1095.2014.30122

聚甲基丙烯酸甲酯/苯乙烯-丙烯腈无规共聚物薄膜表面原位原子力显微镜相图

陶荟春 ^1, , 张双双 ^2, , 张晶莹 ^3, , 艾淑平 ^4, , 由吉春 ^5,

1.吉林建筑大学基础科学部长春130118

2.杭州师范大学材料与化学化工学院杭州310036

3.吉林建筑大学基础科学部长春130118

4.吉林建筑大学基础科学部长春130118

5.杭州师范大学材料与化学化工学院杭州310036

基金项目: 浙江省杰出青年基金(R4110021) Zhejiang Provincial Natural Science Foundation of China(R4110021) the National Natural Science Foundation of China(21074029,21104013 and 21104014) 国家自然科学基金(21074029,21104013,21104014)

关键词：共混 , 相分离 , 原位 , 原子力显微镜

In-situ Atomic Force Microscopy Study on Phase Diagram of Poly (methyl methacrylate)/Poly (styreneco-acrylonitrile) Blend Films Surface

Keywords： polymer blend , phase separation , in-situ , atomic force microscopy

采用原位原子力显微镜在线跟踪方法,研究了聚甲基丙烯酸甲酯/苯乙烯-丙烯腈无规共聚物共混体系表面相分离行为,得到了具有下临界共溶温度(临界温度约为175℃)原位相图.与文献报道的用离位方法所得结果的主要差别是原位的临界相分离温度稍有提高,以及离位结果中存在的组成对称性.这些差别主要来源于离位和原位实验方法上的差别,薄膜厚度减小导致的相容性,热力学历史的变化以及基底效应的加剧.

参考文献

[1]	Coffey D C,Ginger D S.Patterning Phase Separation in Polymer Films with Dip-Pen Nanolithography[J].JAm Chem Soc,2005,127 (13):4564-4565.
[2]	YOU Jichun,LI Xinglin,SHI Tongfei,et al.Investigation of Degradation Behavior of Polymer on Surface of Film due to the Existence of Monochromatic X-ray[J].Chem J Chinese Univ,2008,29(7):1495-1497(in Chinese).由吉春,李兴林,石彤非,等.单色化X射线对薄膜表面高分子降解行为的影响[J].高等学校化学学报,2008,29(7):1495-1497.
[3]	Tanaka K,Yoon J,Takahara A,et al.Ultrathinning-Induced Surface Phase Separation of Polystyrene/Poly (vinyl methyl ether) Blend Film[J].Macromolecules,1995,28(4):934-938.
[4]	Sung L,Karim A,Douglas J K,et al.Dimensional Crossover in the Phase Separation Kinetics of Thin Polymer Blend Films[J].Phys Rev Lett,1996,76(23):4368-4371.
[5]	Tanaka H.Double Phase Separation in a Confined,Symmetric Binary Mixture:Interface Quench Effect Unique to Bicontinuous Phase Separation[J].Phys Rev Lett,1994,72 (23):3690-3693.
[6]	Haas C K,Torkdson J M.2D Coarsening in Phase-Separated Polymer Solutions:Dependence on Distance from Criticality[J].Phys Rev Leu,1995,75(17):3134-3137.
[7]	Geoghegan M,Jones R A L,Payne R S.Lamellar Structure in a Thin Polymer Blend Film[J].Polymer,1994,35 (10):2019-2027.
[8]	You J,Shi T,Liao Y,et al.Temperature Dependence of Surface Composition and Morphology in Polymer Blend Film[J].Polymer,2008,49(20):4456-4461.
[9]	Newby B,Wakabayashi K,Composto R.Confinement Induced Stabilization in Polymer Blend Thin Films[J].Polymer,2001,42:9155-9162.
[10]	Colombani J,Bert J.Early Sedimentation and Crossover Kinetics in an Off-critical Phase-separating Liquid Mixture[J].Phys Rev E,2004,69:011402.
[11]	Purr S,Binder K.Power Laws and Crossovers in Off-critical Surface-directed Spinodal Decomposition[J].Phys Rev Lett,2001,86(9):1797-1800.
[12]	Heier J,Kramer J,Revesz P,et al.Spinodal Decomposition in a Subsurface Layer of a Polymer Blend Film[J].Macromolecules,1999,32:3758-3765.
[13]	Liao Y,Su Z,Ye X,et al.Kinetics of Surface Phase Separation for PMMA/SAN Thin Films Studied byin Situ Atomic Force Microscopy[J].Macromolecules,2005,38 (2):211-215.
[14]	Song M,Liang H,Jiang B.Early Stage Sponodal Decomposition in Poly(methyl methacryate)/Poly(styrene-coacrylonitrile) Mixture[J].Acta Polym Sin,1990,(2):176-181.
[15]	Wang H,Composto R J.Wetting and Phase Separation in Polymer Blend Films:Identification of Four Thickness Regimes with Distinct Morphological Pathway[J].Interface Sci,2003,11:237-248.
[16]	You J,Liao Y,Men Y,et al.Film Thickness Dependence of Phase Separation and Dewetting Behaviors in PMMA/SAN Blend Films[J].Langmuir,2010,26(18):14530-14534.
[17]	You J,Liao Y,Men Y,et al.Composition Effect on Interplay Between Phase Separation and Dewetting in PMMA/SAN Blend Ultrathin Films[J].Macromolecules,2011,44(13):5318-5325.
[18]	Binder K.Phase Transition of Polymer Blends and Block Copolymer Melts in Thin Films[J].Adv Polym Sci,1999,138:1-89.

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