RAMAN-SPECTROSCOPY OF STRESSED SAMPLES OF ORIENTED POLY(ETHYLENE-TEREPHTHALATE)

被引：31
|
作者：
FINA, LJ [1 ]
BOWER, DI [1 ]
WARD, IM [1 ]
机构：
[1] UNIV LEEDS,DEPT PHYS,LEEDS LS2 9JT,W YORKSHIRE,ENGLAND
来源：
POLYMER | 1988年 / 29卷 / 12期
关键词：
Light--Scattering; -; Polymers--Stresses; Spectroscopy; Raman;
D O I：
10.1016/0032-3861(88)90105-X
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Measurements of the shift and change of shape of the 1616 cm- Raman scattering peak of two moderately oriented samples of poly(ethylene terephthalate) (PET) under tensile loads of up to 0.2 GPa are reported, together with the corresponding strains. To obtain reproducible results load cycling procedures were adopted similar to those established for the study of viscoelastic behavior. The Raman scattering was observed with polarized incident and scattered light, with the polarization directions either both parallel or both perpendicular to the draw direction in the samples. The results showed that for both samples the Raman shift was linearly related to the applied stress below the yield point.
引用
收藏
页码：2146 / 2151
页数：6
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