Polymerizable UV absorbers for the UV stabilization of polyesters. II. Photodegradation study of UV-stabilized PET copolymers

Cormack, Peter A. G. and Erdemli, Omer Can and Sankey, Stephen W. (2021) Polymerizable UV absorbers for the UV stabilization of polyesters. II. Photodegradation study of UV-stabilized PET copolymers. Arkivoc. pp. 315-330. ISSN 1551-7004 (https://doi.org/10.24820/ark.5550190.p011.617)

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Abstract

Polymerizable UV absorbing monomers (UVAMs) were copolymerized with bis(hydroxyethyl) terephthalate to yield copolymers of poly(ethylene terephthalate) (PET). PET copolymer films containing 3-[4-(4,6-diphenyl-1,3,5-triazin-2-yl)-3-hydroxyphenoxy]-1,2-propanediol (UVAM 12) and 6,6’-(6-phenyl-1,3,5-triazine-2,4-diyl)bis(3-(2-hydroxyethoxy)phenol) (UVAM 24) were exposed to UV radiation for 1082 hrs. in a QUV-A accelerated weathering instrument and analyzed periodically using FT-IR spectroscopy and GPC. It was found that PET films containing copolymerized UVAMs outperformed films containing admixed Tinuvin 1577 stabilizer, thereby offering even greater protection to polymer films against UV-induced crosslinking and chain scission.

  • Item type:Article
    ID code:78716
    Dates:
    Date
    Event
    10 December 2021
    Published
    22 November 2021
    Accepted
    Notes:Dedicated to Professor Phil Hodge for his outstanding lifetime achievements in organic and polymer chemistry.
    Subjects:Science > Chemistry
    Department:Faculty of Science > Pure and Applied Chemistry
    Depositing user: Pure Administrator
    Date deposited:26 Nov 2021 09:52
    Last modified:20 Apr 2024 00:47
    URI:https://strathprints.strath.ac.uk/id/eprint/78716
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