THE EFFECT OF THE COMPOSITION ON THE PHAS E-STRUCTURE OF POLYSULFONE-POLY(ETHYLENE TEREPHTHALATE) BLENDS

Citation
Il. Dubnikova et al., THE EFFECT OF THE COMPOSITION ON THE PHAS E-STRUCTURE OF POLYSULFONE-POLY(ETHYLENE TEREPHTHALATE) BLENDS, Vysokomolekularnye soedinenia. Seria A, 38(6), 1996, pp. 972-979
Citations number
11
Categorie Soggetti
Polymer Sciences
ISSN journal
05075475
Volume
38
Issue
6
Year of publication
1996
Pages
972 - 979
Database
ISI
SICI code
0507-5475(1996)38:6<972:TEOTCO>2.0.ZU;2-F
Abstract
Thermophysical properties of the polysulfone-PET blends with different content of PET were studied by differential scanning calorimetry. Gla ss transition temperature of polysulfone was shown to decrease with in creasing the content of PET in the polymer blend to 15 wt %. In this c oncentration range, melting temperature of PET was found to decrease w ith decreasing the content of PET in the PET-polysulfone blend. Variat ions in glass transition temperatures of polysulfone were well describ ed by the Foks equation developed for compatible polymers, whereas var iations in melting temperatures were described by the Nishi-Wang equat ion for polymer blends with the negative miscibility parameter. Experi mental DSC and electron-microscopic data attested the development of a homogeneous amorphous phase in the polymer blends containing less tha n 15 wt % of PET component.