Table 4 Estimated the optical dielectric parameters values for PS BT composites.

From: Structural, spectroscopic, morphological and optical studies of new polymer composite based on polystyrene inserted with natural bitumen

Sample

\(\:\frac{\varvec{N}}{{\varvec{m}}^{\varvec{*}}}\times\:{10}^{55}{(\varvec{m}}^{3}/\varvec{k}\varvec{g})\)

\(\:{\varvec{\epsilon\:}}_{\varvec{\infty\:}}\)

PSBT0

7.3

1.381

PSBT1

14.59

1.685

PSBT2

34.06

2.097

PSBT3

69.34

2.76

PSBT4

113.13

3.6

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