FOURIER TRANSFORM INFRARED STUDIES OF POLY (ETHYLENE TEREPHTHALATE) FILM IN THE GLASS TRANSITION REG

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Three specimens from a solution-cast poly (ethylene terephthalate) (PET) film, one being liquid-N<sub>2</sub> quenched from 92℃(Q), one being slowly cooled from 92℃(SC) and one being quenched and sub-T<sub>g</sub> annealed at 67℃(A
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