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Polyimide Orientation Layers Prepared from Lyotropic Aromatic Poly(Amic Ethyl Ester)s

✍ Scribed by C. Neuber; R. Giesa; H.-W. Schmidt

Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
257 KB
Volume
13
Category
Article
ISSN
1616-301X

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Polyimide Fibers Obtained by Spinning Ly
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## Abstract Summary: Fibers were spun from a lyotropic solution of a high‐molecular‐weight (__η__ = 5.89 g · dL^−1^), rigid‐rod, fully aromatic polyimide precursor polymer in a dry‐jet, wet‐spinning process in NMP. Acetone was identified as the coagulant of choice since fibers could be drawn extens

Synthesis and Properties of Lyotropic pa
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Polarized microscopy of PAE 4 d in NMP at different concentrations and temperatures: spherulitic (top) and lyotropic (bottom) domains coexisting at 40 wt.-% in NMP at the transition of gel to lyotropic solution (70 8C).