Raman spectra of various polymorphs of isotactic polypropylene

被引：13

作者：

Gen, D. E. ^{[1
]}

Prokhorov, K. A. ^{[1
]}

Nikolaeva, G. Yu. ^{[1
]}

Sagitova, E. A. ^{[1
]}

Pashinin, P. P. ^{[1
]}

Shklyaruk, B. F. ^{[2
]}

Antipov, E. M. ^{[2
]}

机构：

[1] Russian Acad Sci, Prokhorov Gen Phys Inst, Moscow 119991, Russia

[2] Russian Acad Sci, AV Topchiev Petrochem Synth Inst, Moscow 119991, Russia

来源：

LASER PHYSICS | 2011年 / 21卷 / 01期

基金：

俄罗斯基础研究基金会;

关键词：

SPECTROSCOPY; CRYSTALLINE; ORIENTATION; PROPYLENE; BLENDS; COPOLYMERS;

D O I：

10.1134/S1054660X11020010

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The Raman spectra of the alpha, gamma, and smectic modifications of isotactic polypropylene (PP) are studied. The most significant spectral differences are observed in the frequency range around 2960 cm(-1) for the spectral doublet assigned to the asymmetric stretching vibrations of the CH(3) groups and in the frequency range around 800 cm(-1), which is used for analysis of the phase composition of isotactic PP. It is demonstrated that the peak positions and relative intensities of the doublet assigned to the asymmetric stretching vibrations of the CH(3) groups can be used to identify the polymorph modifications of isotactic PP.

引用

页码：125 / 129

页数：5

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