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Molecules 2017, 22(11), 1849; doi:10.3390/molecules22111849

Polyphosphates as Inhibitors for Poly(vinyl Chloride) Photodegradation

1
Department of Chemistry, College of Science, Tikrit University, Tikrit 34001, Iraq
2
Cornea Research Chair, Department of Optometry, College of Applied Medical Sciences, King Saud University, P.O. Box 10219, Riyadh 11433, Saudi Arabia
3
Department of Chemistry, College of Science, Al-Nahrain University, Baghdad 64021, Iraq
*
Authors to whom correspondence should be addressed.
Received: 26 September 2017 / Revised: 24 October 2017 / Accepted: 25 October 2017 / Published: 28 October 2017
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Abstract

Three polyphosphates were used as inhibitors for poly(vinyl chloride) (PVC) photodegradation. The polyphosphates were added to PVC at a concentration of 0.5% by weight. The PVC films (40 µm thickness) were irradiated at room temperature with ultraviolet (UV) light for up to 300 h. The changes in PVC films after irradiation were monitored by Fourier transform infrared spectroscopy, weight loss, viscosity-average molecular weight determination, and atomic force microscopy. These changes were very noticeable in the blank PVC films compared to the ones obtained when additives were used. The polyphosphates can inhibit the PVC photodegradation through direct absorption of UV light, interactions with PVC chains, and acting as radical scavengers. View Full-Text
Keywords: poly(vinyl chloride); functional groups indices; photodegradation; polyphosphates; inhibitors poly(vinyl chloride); functional groups indices; photodegradation; polyphosphates; inhibitors
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Ahmed, D.S.; El-Hiti, G.A.; Yousif, E.; Hameed, A.S. Polyphosphates as Inhibitors for Poly(vinyl Chloride) Photodegradation. Molecules 2017, 22, 1849.

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