The Raman spectra of different ladder type poly(p-phenylenes) and ladder type oligo(p-phenylenes)

被引:0
|
作者
Somitsch, D
Wenzl, FP
List, EJW
Wilhelm, P
Scherf, U
Leising, G
Knoll, P
机构
[1] Graz Univ, Inst Expt Phys, A-8010 Graz, Austria
[2] Graz Univ Technol, Inst Festkorperphys, A-8010 Graz, Austria
[3] Zentrum Elektronenmikroskopie, A-8010 Graz, Austria
[4] Univ Potsdam, Inst Phys & Theoret Chem, D-14476 Golm, Germany
[5] AT&S AG, Sci & Technol, A-8700 Leoben, Austria
关键词
D O I
10.1002/1521-3900(200205)181:1<383::AID-MASY383>3.0.CO;2-F
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
We report on Raman spectra of ladder type oligo(p-phenylenes) of different chain lengths (5LOPP and 7LOPP) and make a comparison to the Raman spectrum of the corresponding polymer, ladder type poly(p-phenylene) (LPPP). For a better understanding of the vibrational behavior of LPPP, several LPPPs with different substituents (methyl, allyl, n-butyl, 1-adamantyl) were investigated. The recorded Raman spectra of these LPPPs show significant changes in the interring CC stretching regions. An experimental analysis of the frequencies, intensities and line-shapes of significant modes is given in dependence on the substituents and chain lengths.
引用
收藏
页码:383 / 388
页数:6
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