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Related Concept Videos

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...
Microbial Bioremediation of Plastics01:28

Microbial Bioremediation of Plastics

Polyethylene terephthalate (PET) is a synthetic polymer widely utilized in the packaging industry, particularly for bottles and containers. Due to its chemical stability and durability, PET accumulates in the environment, contributing significantly to plastic pollution. It comprises repeating units of terephthalic acid and ethylene glycol, resulting in a semi-crystalline structure that is resistant to natural degradation processes.A notable breakthrough in plastic biodegradation came with the...
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...
Biofuels01:25

Biofuels

The microbial conversion of organic matter into biofuels holds potential as a renewable energy source. Among biofuel sources, microalgae are recognized as a highly efficient and adaptable feedstock for biodiesel production, owing to their rapid biomass accumulation, elevated lipid productivity, and capacity to proliferate in diverse aquatic systems, including freshwater, marine, and wastewater habitats. Unlike terrestrial crops, microalgae do not compete for land and can achieve significantly...
Production of Organic Acids01:25

Production of Organic Acids

Lactic acid, an important organic acid extensively applied in food, pharmaceutical, and biodegradable polymer industries, is primarily produced via microbial fermentation. This method is favored over chemical synthesis due to its environmental sustainability and capacity for enantiomerically pure product formation. Among various microbial processes, the fermentation of starch-based substrates stands out due to the abundance and renewability of raw materials like corn and potatoes.Hydrolysis of...
Plasticizers01:31

Plasticizers

Water-reducers, or plasticizers, are chemical admixtures used in concrete to improve strength and workability. These additives reduce the water-cement ratio without compromising workability, lower the cement content while maintaining the same workability, or increase workability to assist concrete placement in inaccessible areas.
Plasticizers function by using surface-active agents to create repulsive electrostatic forces between cement particles. This dispersion enhances the concrete's...

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Updated: May 28, 2026

Designed for Molecular Recycling: A Lignin-Derived Semi-aromatic Biobased Polymer
10:22

Designed for Molecular Recycling: A Lignin-Derived Semi-aromatic Biobased Polymer

Published on: November 30, 2020

Sustainable closed-loop recyclable bioplastics.

Xia Sun1, Hao Sun1, Jiaying Zhu1

  • 1Sustainable Functional Biomaterials Laboratory, Bioproducts Institute, Faculty of Forestry, University of British Columbia, Vancouver V6T1Z4, Canada.

Science Bulletin
|May 26, 2026
PubMed
Summary
This summary is machine-generated.

Introducing celluplastic, a novel bioplastic from wood cellulose, offering fossil-plastic performance and biodegradability. This sustainable material achieves over 100 cycles of closed-loop recyclability, reducing plastic pollution.

Keywords:
BioplasticCelluloseClosed-loop recyclabilitySustainabilityTransparency

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Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers

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Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Sustainable Engineering

Background:

  • Fossil plastics cause significant pollution due to poor recyclability and non-degradability.
  • Current biodegradable bioplastics lack essential properties like stretchability and toughness.
  • Existing bioplastics often require complex procedures and costly reagents, hindering recyclability.

Purpose of the Study:

  • To develop a sustainable bioplastic with high performance and inherent biodegradability.
  • To create a recyclable bioplastic that matches fossil plastics' functionality.
  • To establish a scalable pathway for eco-friendly plastic alternatives.

Main Methods:

  • Constructing celluplastic using a hierarchical design of wood-derived microfibrillated cellulose network, dialcohol cellulose nanorods, and modified cellulose molecular chains.
  • Evaluating mechanical properties (strength, strain), transparency, and colorlessness.
  • Assessing aqueous closed-loop recyclability over 100 cycles.

Main Results:

  • Celluplastic demonstrates strength (>30 MPa) and strain (>100%) comparable to fossil plastics.
  • The material exhibits transparency and colorlessness.
  • Over 100 cycles of closed-loop recycling showed no substantial loss in performance, confirming inherent biodegradability and recyclability.

Conclusions:

  • Celluplastic offers a high-performance, sustainable alternative to fossil plastics.
  • The material's inherent biodegradability and straightforward recyclability provide eco-friendly end-of-life solutions.
  • This scalable approach accelerates the adoption of renewable materials in plastic applications.