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Related Concept Videos

Polymers02:34

Polymers

The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the properties that they exhibit. Additionally,...
Polymers02:34

Polymers

The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the properties that they exhibit. Additionally,...
Types of Step-Growth Polymers: Polyesters01:20

Types of Step-Growth Polymers: Polyesters

The introduction of polyesters has brought major development to the textile industry. The wrinkle-free behavior of polyester blends has eliminated the need for starching and ironing clothes.
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the polymer...
Polymers02:34

Polymers

The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the properties that they exhibit. Additionally,...
Bioplastics01:27

Bioplastics

Bioplastics derived from microbial processes present a sustainable alternative to conventional petroleum-based plastics. Among these, polyhydroxyalkanoates (PHAs), particularly polyhydroxybutyrates (PHBs), have emerged as prominent candidates due to their biodegradability and biocompatibility. These polymers are synthesized by a variety of bacteria, such as Cupriavidus necator and Pseudomonas putida, which naturally accumulate PHAs as intracellular carbon and energy reserves, especially under...

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Biopolymer-Based Films Reinforced with FexOy-Nanoparticles.

Johar Amin Ahmed Abdullah1, Mercedes Jiménez-Rosado1, José J Benítez2

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Polymers
|November 11, 2022
PubMed
Summary

Green synthesized iron oxide nanoparticles (FeOx-NPs) enhance natural polymer films, improving properties for applications in food packaging, pharmaceuticals, and agriculture. These eco-friendly nanocomposite films offer improved mechanical strength and antioxidant characteristics.

Keywords:
cellulose acetatechitosangelatiniron oxide nanoparticlesmechanical properties

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Area of Science:

  • Materials Science
  • Polymer Science
  • Nanotechnology

Background:

  • Natural polymer films offer eco-friendly alternatives to plastics but suffer from poor water resistance, permeability, and mechanical strength.
  • Nanoparticles, specifically green synthesized iron oxide nanoparticles (FeOx-NPs), present a viable solution to enhance the properties of natural polymer films.

Purpose of the Study:

  • To develop and characterize natural polymer-based films (gelatin, cellulose acetate, chitosan) incorporating green synthesized FeOx-NPs.
  • To investigate the impact of FeOx-NPs on the physicochemical, mechanical, microstructural, and antioxidant properties of these films.

Main Methods:

  • Three types of natural polymer films (gelatin, cellulose acetate, chitosan) were prepared using the casting method.
  • Green synthesized FeOx-NPs (1.0% w/w) were incorporated as additives into the polymer matrices.
  • Comprehensive analysis included physicochemical, mechanical, microstructural, and antioxidant property evaluations.

Main Results:

  • Incorporation of FeOx-NPs significantly improved the physicochemical properties of the polymer films.
  • Mechanical resistance and morphological characteristics of the films were notably enhanced by FeOx-NP addition.
  • The antioxidant capabilities of the natural polymer films were substantially increased with the inclusion of FeOx-NPs.

Conclusions:

  • Green synthesized FeOx-NPs effectively enhance the properties of gelatin, cellulose acetate, and chitosan-based films.
  • These improved nanocomposite films show potential for diverse industrial applications, including functional food packaging, pharmaceutical additives, and agricultural pesticides.
  • The study demonstrates a successful strategy for creating advanced, environmentally friendly materials from natural polymers and nanoparticles.