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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...
Step-Growth Polymerization: Overview01:03

Step-Growth Polymerization: Overview

Step-growth or condensation polymerization is a stepwise reaction of bi or multifunctional monomers to form long-chain polymers. As all the monomers are reactive, most of the monomers are consumed at the early stages of the reaction to form small chains of reactive oligomers, which then combine to form long polymer chains in the late stages. Hence, the reaction has to proceed for a long time to achieve high molecular weight polymers.
Many natural and synthetic polymers are produced by...
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,...
Anionic Chain-Growth Polymerization: Overview01:20

Anionic Chain-Growth Polymerization: Overview

The polymerization process that involves carbanion as an intermediate is called anionic polymerization. It is also a type of addition or chain-growth polymerization. Anionic polymerization gets initiated by a strong nucleophile such as an organolithium or a Grignard reagent. The most commonly used initiator for anionic polymerization is butyl lithium. Monomers involved in anionic polymerization must possess a vinyl group bonded to one or two electron-withdrawing groups. For instance,...
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.
Olefin Metathesis Polymerization: Overview01:13

Olefin Metathesis Polymerization: Overview

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.
Ruthenium-based Grubbs catalyst is the most commonly used catalyst for olefin metathesis polymerization. Grubbs catalyst consists of a...

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Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
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Advanced supramolecular polymers constructed by orthogonal self-assembly.

Shao-Lu Li1, Tangxin Xiao, Chen Lin

  • 1Key Laboratory of Mesoscopic Chemistry of MOE, Center for Multimolecular Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.

Chemical Society Reviews
|July 10, 2012
PubMed
Summary

Supramolecular polymers are large molecules formed by linking smaller units using non-covalent interactions. This review explores polymers built using multiple, orthogonal non-covalent binding interactions for diverse applications.

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Area of Science:

  • Polymer Chemistry
  • Materials Science
  • Supramolecular Chemistry

Background:

  • Supramolecular polymers are formed by assembling monomer units through non-covalent interactions.
  • Various non-covalent interactions (metal-ligand, hydrogen bonding, pi-pi stacking, ionic, host-guest) enable polymer property modification.
  • Orthogonal combinations of these interactions allow for sophisticated supramolecular architectures.

Purpose of the Study:

  • To review supramolecular polymers constructed using multiple non-covalent interactions.
  • To highlight the orthogonal combination of binding interactions in supramolecular polymer design.
  • To provide a comprehensive overview of this rapidly advancing field.

Main Methods:

  • Literature review of supramolecular polymers.
  • Analysis of polymers utilizing multiple, orthogonally combined non-covalent interactions.
  • Categorization of supramolecular polymers based on binding interaction types.

Main Results:

  • Identified numerous supramolecular polymers constructed from combinations of multiple non-covalent interactions.
  • Demonstrated the successful application of orthogonal binding strategies in supramolecular polymer synthesis.
  • Showcased the versatility and tunability of supramolecular polymers through diverse interaction combinations.

Conclusions:

  • Multiple, orthogonally combined non-covalent interactions are key to designing advanced supramolecular polymers.
  • This approach offers significant potential for creating materials with tailored properties.
  • Further exploration of orthogonal binding in supramolecular chemistry is warranted.