New stabilizers for PVC based on some diorganotin(IV) complexes with benzamidoleucine

Emad Yousif, Jumat Salimon, Nadia Salih, Ali Jawad, Yip Foo Win

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The photostabilization of poly(vinyl chloride) (PVC) films by diorganotin(IV) complexes of the type Ph 2SnL 2, Bu 2SnL 2 and Me 2SnL 2 of the ligand benzamidoleucine complexes was investigated. The PVC films containing concentration of complexes 0.5% by weight were produced by the casting method from tetrahydrofuran (THF) solvent. The photostabilization activities of these compounds were determined by monitoring the carbonyl, polyene and hydroxyl indices with irradiation time. The changes in viscosity average molecular weight of PVC with irradiation time were also tracked (using THF as a solvent). The quantum yield of the chain scission (Φ cs) of these complexes in PVC films was evaluated and found to range between 5.77 × 10 -8 and 7.26 × 10 -8. Results obtained showed that the rate of photostabilization of PVC in the presence of the additive follows the trend:. Ph 2SnL 2 > Bu 2SnL 2 > Me 2SnL 2. According to the experimental results obtained, several mechanisms were suggested depending on the structure of the additive. Among them HCl scavenging, UV absorption, peroxide decomposer and radical scavenger for photostabilizer additive mechanisms were suggested.

Original languageEnglish
JournalArabian Journal of Chemistry
DOIs
Publication statusAccepted/In press - 2012

Fingerprint

Polyvinyl Chloride
Polyvinyl chlorides
Irradiation
Vinyl Chloride
Polyenes
Scavenging
Peroxides
Quantum yield
Hydroxyl Radical
Casting
Molecular weight
Ligands
Viscosity
Monitoring
tetrahydrofuran

Keywords

  • Benzamidoleucine
  • Diorganotin(IV)
  • HCI scavenging
  • Photostabilizer
  • PVC
  • Quantum yield

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

New stabilizers for PVC based on some diorganotin(IV) complexes with benzamidoleucine. / Yousif, Emad; Salimon, Jumat; Salih, Nadia; Jawad, Ali; Win, Yip Foo.

In: Arabian Journal of Chemistry, 2012.

Research output: Contribution to journalArticle

Yousif, Emad ; Salimon, Jumat ; Salih, Nadia ; Jawad, Ali ; Win, Yip Foo. / New stabilizers for PVC based on some diorganotin(IV) complexes with benzamidoleucine. In: Arabian Journal of Chemistry. 2012.
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AU - Jawad, Ali

AU - Win, Yip Foo

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AB - The photostabilization of poly(vinyl chloride) (PVC) films by diorganotin(IV) complexes of the type Ph 2SnL 2, Bu 2SnL 2 and Me 2SnL 2 of the ligand benzamidoleucine complexes was investigated. The PVC films containing concentration of complexes 0.5% by weight were produced by the casting method from tetrahydrofuran (THF) solvent. The photostabilization activities of these compounds were determined by monitoring the carbonyl, polyene and hydroxyl indices with irradiation time. The changes in viscosity average molecular weight of PVC with irradiation time were also tracked (using THF as a solvent). The quantum yield of the chain scission (Φ cs) of these complexes in PVC films was evaluated and found to range between 5.77 × 10 -8 and 7.26 × 10 -8. Results obtained showed that the rate of photostabilization of PVC in the presence of the additive follows the trend:. Ph 2SnL 2 > Bu 2SnL 2 > Me 2SnL 2. According to the experimental results obtained, several mechanisms were suggested depending on the structure of the additive. Among them HCl scavenging, UV absorption, peroxide decomposer and radical scavenger for photostabilizer additive mechanisms were suggested.

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