Vapour induced ordering phenomena in syndiotactic polystyrene amorphous films |
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| Authors: | V. Vittoria A. Ruvolo Filho F. de Candia |
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| Affiliation: | (1) Istituto di Ricerche su Tecnologia dei Polimeri e Reologia, CNR, Via Toiano, 6, I-80072 Arco Felice (Napoli), Italy;(2) Present address: Chemistry Department, Federal University of Sao Carlos, Cx Postal 676, 13560 Sao Carlos, (SP), Brasil;(3) Present address: Istituto di Ingegneria Chimica e Alimentare, Università di Salerno, I-84081 Salerno, Italy |
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| Abstract: | Summary Films of amorphous syndiotactic polystyrene were exposed to dichloromethane vapour at varying activity, up to a=1. Infrared analysis and wide angle X-ray scattering were used to follow the development of ordered structures, induced by the vapour. It has been found that characteristic bands in the infrared spectrum appear after activity a=0.45, whereas X-rays show that the sample is still amorphous. The appearance of the crystalline reflections occurs at higher activities and a continuous improvement up to a=1 in the X-ray pattern is observed. |
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| Keywords: | Syndiotactic polystyrene FTIR Wide-angle X-ray Scattering ordering phenome |
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