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Title: Static and dynamic light scattering on aligned solution of root like polymer
Authors: Desvignes, N.
Suresh, K.A.
Berry, G.C.
Issue Date: 1993
Publisher: John Wiley
Citation: Journal of Applied Polymer Science, 1993, Vol.52, p33-43
Abstract: Static and dynamic light scattering are described on well-aligned nematic solutions of the rodlike poly(1.4-phenylene-2.6-benzobisthiazole) (PBT). The data are used to discuss the Frank elastic constants Kμ for curvature distortions and the corresponding distortion viscosities ημ (μ = S for splay, T for twist, and B for bend). Data were obtained on a PBT at three concentrations over the range 1.1 < Ψ/ΨNI < 2 where Ψ is the polymer volume fraction and ΨNI the value of Ψ required to form the nematic phase. The data show that ηB/KB < ηT/KT, as expected, but do not give the pronounced dependence of on ηB/KB on Ψ predicted for rodlike chains. Possible explanations for the observed behavior are discussed.
Description: Restricted Access.
ISSN: 0021-8995
1097-4628 (Online)
Copyright: 1993 1993 John Wiley & Sons
Appears in Collections:Research Papers (SCM)

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