Surface structure analysis of thin dewetted polymer blend films

Surface structure analysis of thin dewetted polymer blend films
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去湿聚合物共混薄膜的表面结构分析

DOI：
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
R. Cubitt
R. Cubitt
中科院分区：
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文献类型：
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作者：
P. Müller‐Buschbaum;J. Gutmann;M. Stamm;R. Cubitt

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研究了氘代聚苯乙烯（dPS）和聚对甲基苯乙烯（PpMS）共混物薄膜在玻璃化转变温度以上退火后的表面结构。用扫描力显微镜（SFM）的表面形貌起源于一个去湿过程中检测。样品表面覆盖着由几个聚合物分子组成的小液滴。利用掠入射小角中子散射（GISANS）探测了表面形貌信息和面内成分。对于薄的限制共混物膜的子结构的液滴从一个额外的相分离过程中，在不同的长度尺度检测。
The surface structure of thin polymer blend films of deuterated polystyrene (dPS) and polyparamethylstyrene (PpMS) after annealing above the glass transition temperature was investigated. With scanning force microscopy (SFM) the surface topography originated by a dewetting process is detected. The sample surface is covered with small droplets consisting of several polymer molecules. Utilizing grazing incidence small angle neutron scattering (GISANS) the topographical information as well as the in-plane composition is probed. For thin confined blend films a substructure of the droplets resulting from an additional phase separation process at different length scales is detected.