NORMAL VIBRATIONS AND THEIR DISPERSION IN SYNDIOTACTIC POLYSTYRENE

被引：37

作者：

RASTOGI, S ^{[1
]}

GUPTA, VD ^{[1
]}

机构：

[1] UNIV LUCKNOW,DEPT PHYS,LUCKNOW 226007,UTTAR PRADESH,INDIA

来源：

JOURNAL OF MACROMOLECULAR SCIENCE-PHYSICS | 1994年 / B33卷 / 02期

关键词：

D O I：

10.1080/00222349408248083

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Normal modes and their dispersion are obtained for syndiotactic polystyrene (sPS) in the planar zigzag and s(2/1)2 helical conformations. Comparison is made with the spectra of isotactic polystyrene (iPS) to identify the conformation-sensitive modes; for example, the 1221 cm-1 mode is identified as a skeletal mode sensitive to chain structure and it also shows maximum dispersion. Bunching of dispersion curves and their intersection are among the characteristic features which are discussed. A check on the dispersion curves below 400 cm-1 is made from the spectra of polystyrene oligomers.

引用

页码：129 / 141

页数：13

共 25 条

[1] [Anonymous], 1980, MOL VIBRATIONS
[2] BOWER DI, 1989, VIB SPECTROSC, P154
[3] GEOMETRICAL AND ENERGETICAL ANALYSIS OF THE CHAIN CONFORMATIONS OF SYNDIOTACTIC POLYSTYRENE IN THE CRYSTALLINE STATE
CORRADINI, P
NAPOLITANO, R
PIROZZI, B
[J]. EUROPEAN POLYMER JOURNAL, 1990, 26 (02) : 157 - 161
[4] THERMALLY INDUCED CRYSTALLIZATION IN GLASSY SYNDIOTACTIC POLYSTYRENE
DECANDIA, F
FILHO, AR
VITTORIA, V
[J]. COLLOID AND POLYMER SCIENCE, 1991, 269 (07) : 650 - 654
[5] DECANDIA F, 1991, POLYM COMMUN, V32, P306
[6] ON THE CRYSTAL-STRUCTURE OF THE ORTHORHOMBIC FORM OF SYNDIOTACTIC POLYSTYRENE
DEROSA, C
RAPACCIUOLO, M
GUERRA, G
PETRACCONE, V
CORRADINI, P
[J]. POLYMER, 1992, 33 (07) : 1423 - 1428
[7] FILHO AR, 1990, MAKROMOL CHEM-RAPID, V11, P199
[8] MORPHOLOGY AND STRUCTURE OF SYNDIOTACTIC POLYSTYRENE
GREIS, O
XU, Y
ASANO, T
PETERMANN, J
[J]. POLYMER, 1989, 30 (04) : 590 - 594
[9] POLYMORPHISM IN MELT CRYSTALLIZED SYNDIOTACTIC POLYSTYRENE SAMPLES
GUERRA, G
VITAGLIANO, VM
DEROSA, C
PETRACCONE, V
CORRADINI, P
[J]. MACROMOLECULES, 1990, 23 (05) : 1539 - 1544
[10] THE VIBRATION SPECTRA OF HELICAL MOLECULES - INFRA-RED AND RAMAN SELECTION RULES, INTENSITIES AND APPROXIMATE FREQUENCIES
HIGGS, PW
[J]. PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1953, 220 (1143): : 472 - 485

← 1 2 3 →