Raman scattering in oriented polyethylene : The C-H stretching region
Raman scattering in oriented polyethylene : The C-H stretching region
复制标题
取向聚乙烯中的拉曼散射：C-H 拉伸区域
DOI：
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
D. Nikolaev
中科院分区：
文献类型：
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作者：
K. Prokhorov;G. Y. Nikolaeva;S. Gordeyev;P. Pashinin;D. Nikolaev
对具有不同单轴取向度的聚乙烯样品的C-H伸缩区（2800-3000 cm-1）内的拉曼光谱进行了分析。在此范围内观察到两个二阶带的A g对称性沿着与两个基本的振动。大分子的取向程度被证明有一个占主导地位的影响的拉曼光谱的形状，这可能会掩盖光谱变化伴随着样品的构象或相组成的变化。
Raman spectra within the C-H stretching region (2800-3000 cm -1 ) are analyzed for polyethylene samples with different degrees of uniaxial orientation. Two second-order bands with the A g symmetry are observed within this range along with two fundamental vibrations. The orientation degree of macromolecules is shown to have a predominant influence on the shape of Raman spectra, which may mask spectral changes accompanying variations in the conformation or phase composition of samples.