ISSN:
1435-1536
Keywords:
Polycarbonate
;
oriented polymers
;
elastic and optical anisotropy
;
Brillouin spectroscopy
;
aggregate model
;
orientation parameters
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract High resolution Brillouin spectroscopy (BS) has been used to investigate elastic and optical properties of uniaxially drawn samples of polycarbonate (PC). The results are discussed in the framework of the single phase aggregate model (SPAM) of Ward. According to a recently developed evaluation technique, the SPAM parameters of PC are determined, resulting in the following elastic constants of the structural units:c 33 0 =33 GPa,c 11 0 =7 GPa,c 13 0 =9.7 GPa,c 44 0 =1.4 GPa, andc 66 0 =1 GPa. A nearly quadratic dependence of the orientation parameterP 4 onP 3 results, which can be explained by a modified pseudoaffine deformation scheme.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01418451
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