Characterisation of Thin Composite Films from Hyperbranched Polyphenylene and Thermolabile Hyperbranched Polycarbonate
Characterisation of Thin Composite Films from Hyperbranched Polyphenylene and Thermolabile Hyperbranched Polycarbonate
复制标题
超支化聚苯和耐热超支化聚碳酸酯复合薄膜的表征
DOI：
10.1002/macp.200800170
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发表时间：
2008
期刊：
影响因子：
--
通讯作者：
B. Voit
中科院分区：
文献类型：
--
作者：
Katrin Stumpe;K. Eichhorn;B. Voit
由热稳定的超支化聚亚苯基和热不稳定的超支化聚碳酸酯制成的复合薄膜在硅片上制备和表征。改变聚碳酸酯的端基，以实现两种组分之间的最佳相互作用，从而形成均匀的共混物。将复合膜在200 °C下退火以分解可充当致孔剂的超支化聚碳酸酯。采用红外光谱和椭圆偏振光谱法研究了退火前后薄膜的组成。数据分析允许计算膜内两种材料的体积分数。
Thin composite films made from a thermally stable hyperbranched polyphenylene and a thermolabile hyperbranched polycarbonate were prepared on silicon wafers and characterised. The end groups of the polycarbonate were varied in order to accomplish an optimised interaction between the two components and thus the formation of homogeneous blends. The composite films were annealed at 200 °C in order to decompose the hyperbranched polycarbonate which can act as a porogen. The composition of the films before and after the annealing process was investigated applying IR spectroscopy and spectroscopic ellipsometry. Analysis of the data allowed calculating the volume fractions of the two materials within the films.