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Related Concept Videos

Types of Step-Growth Polymers: Polyesters01:20

Types of Step-Growth Polymers: Polyesters

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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.
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Olefin Metathesis Polymerization: Overview01:13

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Recently, the development of olefin metathesis polymerization advanced the field of polymer synthesis. Simply put, the reorganization of substituents on their double bonds between two olefins in the presence of a catalyst is known as the olefin metathesis reaction. The use of metathesis reaction for polymer synthesis is called olefin metathesis polymerization.
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Polymer Classification: Architecture01:14

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Polymers are classified as linear or branched on the basis of their chain architecture. The polymer chains in linear polymers have a long chain-like structure with minimal to no branching at all. Even if a polymer features large substituent groups on the monomer, which appear as branches to the skeleton, it is not considered a branched polymer. A branched polymer contains secondary polymer chains that arise from the main polymer chain. The branching occurs when the polymer growth shifts from...
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Free-Radical Chain Reaction and Polymerization of Alkenes02:35

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The conversion of alkenes to macromolecules called polymers is a reaction of high commercial importance. The structure of the polymer is defined by a repeating unit, while the terminal groups are considered insignificant. The average degree of polymerization represents the number of repeating units in the polymer molecule and is denoted by the subscript n.
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Plasticizers01:31

Plasticizers

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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.
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Olefin Metathesis Polymerization: Ring-Opening Metathesis Polymerization (ROMP)01:16

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Ring-opening metathesis polymerization or ROMP involves strained cycloalkenes as starting materials. The mechanism of ROMP proceeds by reacting cycloalkene with Grubbs catalyst to give metallacyclobutane intermediate which undergoes a ring-opening reaction to form new carbene. The new carbene reacts with another molecule of cycloalkene. Repetition of these steps leads to the formation of an unsaturated open-chain polymer product. All these steps are reversible, however, relieving the ring...
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Renewable polymers and plastics: Performance beyond the green.

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This summary is machine-generated.

Renewable bio-based polymers offer sustainable solutions to plastic pollution. By combining chemistry and biotechnology, new bio-polymers demonstrate superior functional properties, challenging the notion that eco-friendly options are expensive.

Keywords:
Bio-based industryBio-based plasticsBioeconomyIndustrial biotechnologyRenewable feedstockSustainable chemistry

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Area of Science:

  • Polymer Science
  • Biotechnology
  • Sustainable Chemistry

Background:

  • Plastic pollution poses a significant environmental challenge, largely driven by fossil-based materials.
  • The extraction and processing of fossil fuels for plastics incur substantial natural capital costs, often exceeding 70% of the total impact.
  • Current market perceptions may overestimate the cost of renewable polymers compared to fossil-based alternatives.

Purpose of the Study:

  • To highlight successful applications of integrating chemistry and biotechnology for novel bio-based monomers and polymers.
  • To demonstrate that bio-based plastics can be adopted based on their functional performance, not solely on environmental benefits.
  • To challenge the perception of higher costs associated with renewable polymers.

Main Methods:

  • Synergistic approaches combining chemical synthesis and biotechnological processes.
  • Development of advanced bio-based monomers and polymers.
  • Evaluation of functional properties and performance characteristics of novel bio-polymers.

Main Results:

  • Successful creation of a new generation of bio-based monomers and polymers through interdisciplinary collaboration.
  • Demonstrated functional properties of these bio-based materials that meet or exceed industry standards.
  • Quantification of environmental and social benefits associated with the developed bio-polymers.

Conclusions:

  • The integration of chemistry and biotechnology is key to advancing the development of high-performance bio-based polymers.
  • The adoption of renewable polymers is viable when driven by superior functionality and supported by positive environmental and social outcomes.
  • Addressing the hidden environmental costs of fossil plastics can reframe the economic competitiveness of bio-based alternatives.