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.
| Original language | English |
|---|---|
| Pages (from-to) | 315-330 |
| Number of pages | 16 |
| Journal | Arkivoc |
| DOIs | |
| Publication status | Published - 10 Dec 2021 |
Keywords
- ultraviolet
- degradation
- poly(ethylene terephthalate)
- poly(ethylene isophthalate)
- UV absorber
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