Tuning Substrate Surface Energies for Blends of Polystyrene and Poly(methyl methacrylate)
Tuning Substrate Surface Energies for Blends of Polystyrene and Poly(methyl methacrylate)
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调节聚苯乙烯和聚甲基丙烯酸甲酯共混物的基材表面能
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发表时间：
2003
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影响因子：
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通讯作者：
H. Ade
中科院分区：
文献类型：
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作者：
D. A. Winesett;S. Story;J. Lüning;H. Ade
我们比较了三种制备方法的功效，旨在以一种简单且廉价的方式为聚苯乙烯和聚（甲基丙烯酸甲酯）的双组分均聚物共混物创建非优先表面。第一种方法是将苯乙烯和甲基丙烯酸甲酯的两种不同的高分子量共聚物物理吸附到羟基化氧化硅上。第二种方法包括将辛基三氯硅烷共价键合到羟基化氧化硅上，具有梯度覆盖以产生具有中性表面的区域。第三种方法利用共价连接到基底上的聚苯乙烯和聚（甲基丙烯酸甲酯）的羟基封端的、可混溶的低分子量均聚物。我们使用光学显微镜，原子力显微镜，接触角测量，以及近边X射线吸收精细结构（NEXAFS）显微镜和光谱学的所有三种方法的相对有效性和它们的时间稳定性的特点。探索的制备方法应可扩展到许多聚合物系统。
We compare the efficacies of three preparation methods intended to create in an easy and inexpensive way a nonpreferential surface for a two-component homopolymer blend of polystyrene and poly(methyl methacrylate). The first method is to physically absorb two different high molecular weight copolymers of styrene and methyl methacrylate onto hydroxylated silicon oxide. The second method consists of covalently bonding octyltrichlorosilane onto hydroxylated silicon oxide with gradient coverage to create a region with a neutral surface. The third method utilizes hydroxyl terminated, miscible, low molecular weight homopolymers of polystyrene and poly(methyl methacrylate) covalently attached to the substrate. We characterize the relative effectiveness of all three methods and their temporal stability using optical microscopy, atomic force microscopy, contact angle measurements, as well as near edge X-ray absorption fine structure (NEXAFS) microscopy and spectroscopy. The preparation methods explored should be extendable to a number of polymer systems.