EFFECT OF POLY(SILICON-BUTYL-ADIPATE) COPOLYMERS COMPOSITION ON SEVERAL CHARACTERIZATION ASPECTS

Abduelmaged   Abduallah; Omar  Sultan; Omar  Algeidi

doi:10.66411/jer.v24i.313

Authors

Abduelmaged Abduallah Department of Chemical Engineering, Faculty of Engineering, Sabratha University, Libya Author
Omar Sultan Department of Chemical Engineering, Faculty of Engineering, Zawia University, Libya Author
Omar Algeidi Department of Chemical Engineering, Faculty of Engineering, Sabratha University, Libya Author

DOI:

https://doi.org/10.66411/jer.v24i.313

Keywords:

Poly (Silicon-Butyl-Adipate), Scale morphology, Atomic Force Microscopy, Wide-Angle X-Ray Diffraction, Free Volume

Abstract

In this paper the effect of the chemical composition (silicon content), on the morphological structure, degree of crystallinity and free volume in Poly(silicon-butyl- adipate) (PSBA) Copolymer, were investigated. The copolymer series morphology and crystallinity percent (ωm) were studied using and atomic force microscopy (AFM), wide-angle X-ray diffraction (WAXD) respectively. Positron Annihilation Lifetime Spectroscopy (PALS) was used to measure the free volume in a series of PSBA copolymers as well as in the silicon and BA homopolymers was measured using positron annihilation lifetime spectroscopy (PALS). The free volumes of the homopolymers were determined by analyzing the lifetime (LT) spectra using three- components fit. On the other hand, the LT spectra of the PSBA copolymer series were analyzing using four-components fit. The effects of the chemical composition (silicon content), on the o-Ps annihilation parameters and thus on the free volume of the PSBA copolymers, were investigated. The results indicated that positron annihilation characteristics (the longest lifetime components (τ3 and τ4) and their intensities (I3 and I4) are very useful for studying the effect of the morphological parameters (microphase separation and crystallinity) on the free volume in the copolymer series

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