Premium
Thermal Behavior of Binary and Ternary Blends Based on Poly (Styrene‐ co ‐Allyl Alcohol)/Cellulose Acetate Butyrate and an Organically Modified Bentonite
Author(s) -
Ouaad Kamal,
Mehai Chihab,
Bahri Fadila,
Addid Sofiane,
Haroun Faiza,
Djadoun Saïd
Publication year - 2019
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.201900006
Subject(s) - materials science , differential scanning calorimetry , ternary operation , thermal stability , fourier transform infrared spectroscopy , bentonite , styrene , nuclear chemistry , thermogravimetric analysis , miscibility , chemical engineering , thermogravimetry , polymer chemistry , organic chemistry , chemistry , copolymer , composite material , polymer , physics , computer science , engineering , thermodynamics , programming language
Binary and ternary blends based on an organically modified bentonite, originated from Maghnia Algeria (OBT), poly (styrene‐ co ‐allyl alcohol) (PSAA) containing 40 mol% of allyl alcohol and cellulose acetate butyrate (CAB) of different ratios, are elaborated via solution intercalation method in tetrahydrofuran (THF) as solvent. These binary and ternary blends are investigated by X‐ray diffraction (XRD), scanning electron microscopy (SEM), FTIR spectroscopy, differential scanning calorimetry (DSC), and thermogravimetry analysis (TGA). Due to the occurrence of favorable specific interactions between the constituents of the blends, as evidenced by FTIR, PSAA40/CAB system is miscible in the whole composition range. Indeed, a single glass transition temperature ( T g ), intermediate between those of the pure components is observed with each initial mixture. The effect of the organo‐clay and its dispersion within the blend matrix on the morphology and thermal behavior of the miscible PSAA/CAB blends of different ratios and of their corresponding ternary hybrids blends is discussed. The T g of the ternary blends increased by 5–10 °C compared with their corresponding virgin blends. Significant improvement of thermal stability of ternary hybrids compared to their virgin ones was evidenced by TGA.