Abstract
The zone-drawing (ZD) method was applied to poly( p-phenylene vinylene) (PPV) precursor films under various applied tensions and heater temperatures. The ZD precursor films were successively converted to PPV by heat treatment, and the structure and mechanical properties of the resulting ZD-PPV films were investigated. It was found that the draw ratio, orientation function, crystallinity and apparent crystallite size of the ZD-PPV films were 8.0, 0.74, 65.2% and 47.5 Å, respectively. The mechanical properties were improved by the ZD, and the dynamic storage modulus of the ZD-PPV film reached 33.7 GPa at room temperature and held at 11.5 GPa even at 300°C.
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