Abstract
AbstractThe temperature dependences of some selected infrared bands of poly(vinylchloride) in the vicinity of the glass transition were examined. The intensities of 1333 and 1427 cm−1 bands changed discontinuouly at Tg; on the other hand, 2920 cm−1 did not show any significant changes at this temperature. From these results, the nature of the temperature dependence of infrared intensity of the polymer was discussed. The procedure introduced in this work offers a rapid method for the determination of the Tg as compared with the conventional infrared methods.
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