Synthesis of thermally protective PET–PEG multiblock copolymers as food packaging materials
Yükleniyor...
Tarih
2021
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
SAGE Publications
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
One of the storage conditions affecting quality of food stuffs due to short shelf life is temperature. Thermal insulation can be
achieved by adding phase change materials (PCMs) to packaging materials. PCMs store and release latent heat of phase change
during melting and crystallization operations, respectively. Thus, they can provide thermal protection for packaged foods. The
aim of this study is to prepare new food packaging materials poly (ethylene terephthalate)–poly (ethylene glycol) (PET–PEG)
multiblock copolymers as solid–solid phase change materials (SSPCM) as potential food packaging materials with thermal
energy storage (TES) property. Polyesterification was carried out with PEG at different average molecular weights (1000,
4000 and 10,000 g/mol), ethylene glycol (EG) and terephthaloyl chloride (TPC). Synthesized PET–PEG multiblock copolymers
were characterized using Fourier transform infrared (FT-IR) spectroscopy and differential scanning calorimetry (DSC)
methods. The crystal structures of PET–PEG multiblock copolymers were characterized by polarized optical microscopy
(POM) and their surface properties were determined by performing contact angle tests. TES capacity of the PET–PEG
multiblock copolymers was found in range of 26.1–150.5 J/g. Consequently, this study demonstrates the potential of PET–PEG
multiblock copolymers suitable for effective thermal preservation in packaging material applications to maintain the quality of
packaged food stuffs.
Açıklama
Anahtar Kelimeler
Protective Food Packaging, Solid–Solid Phase Change Material, Polyethylene Terephthalate (PET), Polyethylene Glycol (PEG), Contact Angle Test
Kaynak
Polymers and Polymer Composites
WoS Q Değeri
Q3
Scopus Q Değeri
Cilt
29
Sayı
9_SUPPL
Künye
Güngör Ertuğral, T., & Alkan, C. (2021). Synthesis of thermally protective PET–PEG multiblock copolymers as food packaging materials. Polymers and Polymer Composites, 29(9_suppl), S1125-S1133. doi:10.1177/09673911211045683
