Improvement of the photostabilization of PVC films in the presence of 2N-salicylidene-5-(substituted)-1,3, 4-thiadiazole

Emad Yousif, Nadia Salih, Jumat Salimon

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The photostabilization of poly(vinyl chloride) (PVC) films by 2N-salicylidene-5-(substituted)-1,3,4-thiadiazole compounds 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 (φcs) of these complexes in PVC films was evaluated and found to range between 4.72 × 10-8 and 8.99 × 10-8. Results obtained showed that the rate of photostabilization of PVC in the presence of the additive followed the trend: SN > SC > SB > SI > SP According to the experimental results obtained, several mechanisms were suggested depending on the structure of the additive. Among them, UV absorption, peroxide decomposer, and radical scavenger for photostabilizer mechanisms were suggested.

Original languageEnglish
Pages (from-to)2207-2214
Number of pages8
JournalJournal of Applied Polymer Science
Volume120
Issue number4
DOIs
Publication statusPublished - 15 May 2011

Fingerprint

Polyvinyl Chloride
Polyvinyl chlorides
Irradiation
Vinyl Chloride
Polyenes
Peroxides
Quantum yield
Hydroxyl Radical
Casting
Molecular weight
1,3,4-thiadiazole
Viscosity
Monitoring
tetrahydrofuran

Keywords

  • photochemistry
  • photostabilizer
  • poly(vinyl chloride) (PVC)
  • UV absorber
  • UV-vis spectroscopy

ASJC Scopus subject areas

  • Materials Chemistry
  • Polymers and Plastics
  • Surfaces, Coatings and Films
  • Chemistry(all)

Cite this

Improvement of the photostabilization of PVC films in the presence of 2N-salicylidene-5-(substituted)-1,3, 4-thiadiazole. / Yousif, Emad; Salih, Nadia; Salimon, Jumat.

In: Journal of Applied Polymer Science, Vol. 120, No. 4, 15.05.2011, p. 2207-2214.

Research output: Contribution to journalArticle

@article{d4d3782525de4372a7524bcc4a500643,
title = "Improvement of the photostabilization of PVC films in the presence of 2N-salicylidene-5-(substituted)-1,3, 4-thiadiazole",
abstract = "The photostabilization of poly(vinyl chloride) (PVC) films by 2N-salicylidene-5-(substituted)-1,3,4-thiadiazole compounds 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 (φcs) of these complexes in PVC films was evaluated and found to range between 4.72 × 10-8 and 8.99 × 10-8. Results obtained showed that the rate of photostabilization of PVC in the presence of the additive followed the trend: SN > SC > SB > SI > SP According to the experimental results obtained, several mechanisms were suggested depending on the structure of the additive. Among them, UV absorption, peroxide decomposer, and radical scavenger for photostabilizer mechanisms were suggested.",
keywords = "photochemistry, photostabilizer, poly(vinyl chloride) (PVC), UV absorber, UV-vis spectroscopy",
author = "Emad Yousif and Nadia Salih and Jumat Salimon",
year = "2011",
month = "5",
day = "15",
doi = "10.1002/app.33463",
language = "English",
volume = "120",
pages = "2207--2214",
journal = "Journal of Applied Polymer Science",
issn = "0021-8995",
publisher = "John Wiley and Sons Inc.",
number = "4",

}

TY - JOUR

T1 - Improvement of the photostabilization of PVC films in the presence of 2N-salicylidene-5-(substituted)-1,3, 4-thiadiazole

AU - Yousif, Emad

AU - Salih, Nadia

AU - Salimon, Jumat

PY - 2011/5/15

Y1 - 2011/5/15

N2 - The photostabilization of poly(vinyl chloride) (PVC) films by 2N-salicylidene-5-(substituted)-1,3,4-thiadiazole compounds 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 (φcs) of these complexes in PVC films was evaluated and found to range between 4.72 × 10-8 and 8.99 × 10-8. Results obtained showed that the rate of photostabilization of PVC in the presence of the additive followed the trend: SN > SC > SB > SI > SP According to the experimental results obtained, several mechanisms were suggested depending on the structure of the additive. Among them, UV absorption, peroxide decomposer, and radical scavenger for photostabilizer mechanisms were suggested.

AB - The photostabilization of poly(vinyl chloride) (PVC) films by 2N-salicylidene-5-(substituted)-1,3,4-thiadiazole compounds 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 (φcs) of these complexes in PVC films was evaluated and found to range between 4.72 × 10-8 and 8.99 × 10-8. Results obtained showed that the rate of photostabilization of PVC in the presence of the additive followed the trend: SN > SC > SB > SI > SP According to the experimental results obtained, several mechanisms were suggested depending on the structure of the additive. Among them, UV absorption, peroxide decomposer, and radical scavenger for photostabilizer mechanisms were suggested.

KW - photochemistry

KW - photostabilizer

KW - poly(vinyl chloride) (PVC)

KW - UV absorber

KW - UV-vis spectroscopy

UR - http://www.scopus.com/inward/record.url?scp=79951923565&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79951923565&partnerID=8YFLogxK

U2 - 10.1002/app.33463

DO - 10.1002/app.33463

M3 - Article

AN - SCOPUS:79951923565

VL - 120

SP - 2207

EP - 2214

JO - Journal of Applied Polymer Science

JF - Journal of Applied Polymer Science

SN - 0021-8995

IS - 4

ER -