Synthesis and Characterization of a Novel Composite Edible Film Based on Hydroxypropyl Methyl Cellulose Grafted with Gelatin

A novel composite edible film was synthesized by grafting gelatin chain onto hydroxypropyl methyl cellulose (HPMC) in the presence of glycerol (used as a plasticizer) using a solution polymerization technique. The reaction was carried out in homogeneous aqueous medium. Thermal properties, chemical s...

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Published inGels Vol. 9; no. 4; p. 332
Main Authors Wang, Yajuan, Jiang, Shuting, Chen, Yue, Qiu, Dan, Weng, Yunxuan
Format Journal Article
LanguageEnglish
Published Switzerland MDPI AG 01.04.2023
MDPI
Subjects
Aqueous solutions
Biocompatibility
Biomedical materials
Biopolymers
Calorimetry
Cellulose
Cellulosic resins
Collagen
Composite materials
Contact angle
Decomposition
Diffraction
Food
Food packaging
Fourier transforms
Gelatin
Glycerin
Glycerol
graft copolymer
High temperature
hydroxypropyl methyl cellulose
Infrared spectroscopy
Mechanical properties
Methylcellulose
Polymerization
Polymers
Proteins
Solution polymerization
structural properties
Testing equipment
Thermal properties
Thermal stability
Thermodynamic properties
X-rays
structural properties
graft copolymer
hydroxypropyl methyl cellulose
gelatin
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Summary:A novel composite edible film was synthesized by grafting gelatin chain onto hydroxypropyl methyl cellulose (HPMC) in the presence of glycerol (used as a plasticizer) using a solution polymerization technique. The reaction was carried out in homogeneous aqueous medium. Thermal properties, chemical structure, crystallinity, surface morphology, and mechanical and hydrophilic performance changes of HPMC caused by the addition of gelatin were investigated by differential scanning calorimetry, thermogravimetric, Fourier transform infrared spectroscopy, scanning electron microscopy, X-ray diffraction, universal testing machine and water contact angle. The results shows that HPMC and gelatin are miscible and the hydrophobic property of the blending film can be enhanced with the introduction of the gelatin. Moreover, the HPMC/gelatin blend films are flexible, and exhibit excellent compatibility, good mechanical properties and also thermal stability, and could be promising candidates for food packaging materials.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:2310-2861
2310-2861
DOI:10.3390/gels9040332