Side-Chain Liquid-Crystal Polymers: Gel-like Behavior below Their Gelation Points

We present microrheology experiments on a series of polysiloxane-type liquid-crystal polymers with mesogen-graft amounts of 25%, 70% and 100%. The experiments, conducted as a function of sample thickness, show that the low-frequency response of all of these polymers shifts progressively from a liqui...

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Veröffentlicht in:	Macromolecules 1999-03, Vol.32 (6), p.1746-1752
Hauptverfasser:	Martinoty, P, Hilliou, L, Mauzac, M, Benguigui, L, Collin, D
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Exact sciences and technology Inorganic and organomineral polymers Physicochemistry of polymers Properties and characterization
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	We present microrheology experiments on a series of polysiloxane-type liquid-crystal polymers with mesogen-graft amounts of 25%, 70% and 100%. The experiments, conducted as a function of sample thickness, show that the low-frequency response of all of these polymers shifts progressively from a liquid-type behavior for thick samples (>100 μm) to a purely elastic behavior for thin samples (
ISSN:	0024-9297 1520-5835
DOI:	10.1021/ma981291n