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Related Concept Videos

Characteristics and Nomenclature of Copolymers01:24

Characteristics and Nomenclature of Copolymers

Copolymers are the products obtained from the polymerization of multiple monomer species. So, in a polymer chain itself, there can be multiple repeating units that come from different monomers. The process of synthesizing a polymer from different monomer species is called copolymerization. When two monomers are involved, the polymer is known as a bipolymer. Polymers with three and four monomers are termed terpolymers and quaterpolymers, respectively. Figure 1 depicts the copolymerization of...
Cationic Chain-Growth Polymerization: Mechanism00:57

Cationic Chain-Growth Polymerization: Mechanism

The cationic polymerization mechanism consists of three steps: initiation, propagation, and termination. In the initiation step of the polymerization process, the π bond of a monomer gets protonated by the Lewis acid catalyst, which is formed from boron trifluoride and water. The protonation of the π bond generates a carbocation stabilized by the electron‐donating group. In the propagation step, the π bond of the second monomer acts as a nucleophile and attacks the generated carbocation,...
Ziegler–Natta Chain-Growth Polymerization: Overview01:17

Ziegler–Natta Chain-Growth Polymerization: Overview

Ziegler–Natta polymerization is another form of addition or chain‐growth polymerization used for synthesizing linear polymers over branched polymers. The catalyst used for polymerization is the Ziegler–Natta catalyst, named after Karl Ziegler and Giulio Natta, who developed it in 1953. This catalyst is an organometallic complex of titanium tetrachloride and triethyl aluminum, with the active form of the catalyst being an alkyl titanium compound. Using the Ziegler–Natta catalyst, high molecular...
Characteristics and Nomenclature of Homopolymers01:00

Characteristics and Nomenclature of Homopolymers

Polymers that are made up of identical monomer units are called homopolymers. Only one repeating unit is involved in the construction of the homopolymer structure. For example, as depicted in Figure 1, polypropylene is a homopolymer constituted of propylene monomers. Here, the only repeating unit in the polymer chain is propylene.
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,...
Subviral Agents01:29

Subviral Agents

Subviral agents are infectious entities that resemble viruses but lack one or more viral components, such as a capsid or essential replication machinery. These agents include viroids, prions, and satellites, each possessing distinct structural and functional characteristics that influence their mode of infection and replication.Viroids are the simplest subviral agents, consisting of circular, single-stranded RNA molecules without a protein coat. They exclusively infect plants, relying entirely...

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Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
09:22

Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives

Published on: February 7, 2017

Cucurbit[8]uril-based supramolecular polymers.

Yiliu Liu1, Hui Yang, Zhiqiang Wang

  • 1Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, 100084, China.

Chemistry, an Asian Journal
|April 17, 2013
PubMed
Summary
This summary is machine-generated.

Supramolecular polymers utilize noncovalent bonds for dynamic materials. Cucurbituril (CB)-based systems, particularly , show promise in creating complex supramolecular architectures through host-guest interactions.

Keywords:
cucurbiturilshost-guest systemspolymersself-assemblysupramolecular chemistry

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Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
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Quantitative SERS Detection of Uric Acid via Formation of Precise Plasmonic Nanojunctions within Aggregates of Gold Nanoparticles and Cucurbit[n]uril
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Controlling the Size, Shape and Stability of Supramolecular Polymers in Water
16:24

Controlling the Size, Shape and Stability of Supramolecular Polymers in Water

Published on: August 2, 2012

Area of Science:

  • Supramolecular Chemistry
  • Polymer Science
  • Materials Science

Background:

  • Supramolecular polymers, assembled via noncovalent interactions, are crucial for dynamic materials.
  • Cucurbituril (CB)-based host-guest systems offer strong binding affinity and selectivity.
  • Certain cucurbiturils, like , can bind two guests, forming stable ternary complexes.

Purpose of the Study:

  • To review the fabrication of supramolecular polymers using -based host-guest systems.
  • To highlight the integration of cucurbituril supramolecular chemistry with polymer science.
  • To provide an overview of small-molecule-based and polymer-based supramolecular polymers.

Main Methods:

  • Review of host-guest interactions in -based systems.
  • Analysis of supramolecular polymer construction strategies.
  • Synthesis and characterization of supramolecular polymers.

Main Results:

  • -based host-guest systems are effective for building supramolecular architectures.
  • Successful fabrication of both small-molecule-based and polymer-based supramolecular polymers.
  • Demonstration of the synergistic combination of cucurbituril chemistry and polymer science.

Conclusions:

  • -based supramolecular polymers represent a significant advancement in dynamic materials.
  • These systems offer versatile platforms for designing advanced functional materials.
  • The field shows great potential for future innovations in supramolecular polymer science.