Component Dynamics in Polyisoprene/Poly(4-tert-butylstyrene) Miscible Blends

Linear viscoelastic and dielectric behavior was examined for blends of cis-polyisoprene (PI-20; M PI = 19.9 × 103) and poly(4-tert-butylstyrene) (PtBS-16; M PtBS = 16.4 × 103) with the PtBS concentration of w PtBS = 30 and 50 wt %. At temperatures examined, T ≤ 120 °C, the PI/PtBS blends were in a s...

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Bibliographic Details
Published in:Macromolecules 2008-11, Vol.41 (22), p.8694-8711
Main Authors: Chen, Quan, Matsumiya, Yumi, Masubuchi, Yuichi, Watanabe, Hiroshi, Inoue, Tadashi
Format: Article
Language:English
Subjects:
Applied sciences
Electrical, magnetic and optical properties
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Properties and characterization
Rheology and viscoelasticity
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Summary:Linear viscoelastic and dielectric behavior was examined for blends of cis-polyisoprene (PI-20; M PI = 19.9 × 103) and poly(4-tert-butylstyrene) (PtBS-16; M PtBS = 16.4 × 103) with the PtBS concentration of w PtBS = 30 and 50 wt %. At temperatures examined, T ≤ 120 °C, the PI/PtBS blends were in a statically homogeneous state. Since PI had the type-A dipole while PtBS did not, the dielectric loss of the blends measured at low angular frequencies ω (
ISSN:0024-9297
1520-5835
DOI:10.1021/ma8013417