BirefringenceβAn important property of p
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W. Siebourg; H. Schmid; F. M. Rateike; S. Anders; U. Grigo; H. LΓΆwer
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Article
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1990
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Society for Plastic Engineers
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English
β 582 KB
## Abstract Birefringence is an important substrate property for optical data storage media. The basic definitions of birefringence and its relation to the chemical nature of polycarbonate are outlined. The polarizability of the monomer unit, expressed in the rheoβoptical constant and the degree of