Evaluation of the use of polyphosphates as photostabilizers and in the formation of ball-like polystyrene materials

Polyphosphates have been used as polystyrene photostabilizers against ultraviolet irradiation for long period. The efficiency of polyphosphates was herein evaluated by the use various techniques that include determination of the weight loss, average molecular weight, chain-scission, and degree of de...

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Bibliographic Details
Published in:Journal of polymer research 2019-07, Vol.26 (7), p.1-14, Article 161
Main Authors: Alotaibi, Mohammad Hayal, El-Hiti, Gamal A., Yousif, Emad, Ahmed, Dina S., Hashim, Hassan, Hameed, Ayad S., Ahmed, Ahmed
Format: Article
Language:English
Subjects:
Atomic force microscopy
Chain scission
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Cleavage
Cracks
Electron microscopes
Industrial Chemistry/Chemical Engineering
Irradiation
Low concentrations
Molecular chains
Morphology
Original Paper
Polymer Sciences
Polyphosphates
Polystyrene resins
Scanning electron microscopy
Ultraviolet radiation
Weight loss
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Summary:Polyphosphates have been used as polystyrene photostabilizers against ultraviolet irradiation for long period. The efficiency of polyphosphates was herein evaluated by the use various techniques that include determination of the weight loss, average molecular weight, chain-scission, and degree of deterioration, in addition to infrared spectroscopy of the polystyrene films following irradiation for up to 300 h at room temperature. The results showed that the addition of polyphosphates at low concentrations significantly enhanced the photostability of polystyrene. In addition, the surface morphologies of the polystyrene films were inspected by the use of optical, atomic force, and scanning electron microscopy. The surfaces of the polyphosphate-containing polystyrene films were significantly smoother and contained lower numbers of cracks compared to the blank films. Furthermore, the polyphosphate bearing ortho substituents was the most effective photostabilizer. Scanning electron microscopy of the polystyrene film containing this polyphosphate showed that after 300 h of irradiation, ball-like pores of varying diameters (3.25–4.26 μm) and shapes (ellipsoid and sphere) were present.
ISSN:1022-9760
1572-8935
DOI:10.1007/s10965-019-1829-y