Structure of a self-assembled hydrogen-bonded 'living' main chain liquid crystalline polymer
Chemistry and Biochemistry
A main chain hydrogen-bonded liquid crystalline polymer was formed by melt mixing two complementary components, A and B, which in their individual states do not exhibit liquid crystallinity. The structure of the polymer and the thermal stability of its mesophase were studied using synchrotron radiation SAXS/WAXS/DSC at Daresbury (UK) and by variable temperature Fourier transform infrared. The chain extension, or "polymerization" process, was accelerated at the point when the polymer formed a liquid crystalline phase upon cooling from the isotropic melt. The polymer has an aabb chain structure and forms a smectic layer with a length of the A-B repeating unit. The hydrogen-bonded main chain polymer studied here is a monotropic liquid crystal. Above 150 degrees C, it exhibits kinetic stabilization of its monotropic smectic phase. (C) 1998 John Wiley & Sons, Inc.
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
(1998). Structure of a self-assembled hydrogen-bonded 'living' main chain liquid crystalline polymer. JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 36(10), 1617-1624.
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