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Related Concept Videos

Polymers02:34

Polymers

35.7K
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...
35.7K
Anionic Chain-Growth Polymerization: Overview01:20

Anionic Chain-Growth Polymerization: Overview

2.1K
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,...
2.1K
Step-Growth Polymerization: Overview01:03

Step-Growth Polymerization: Overview

3.5K
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...
3.5K
Molecular Weight of Step-Growth Polymers01:08

Molecular Weight of Step-Growth Polymers

2.2K
Step growth polymerization involves bi or multifunctional monomers. Bifunctional monomers react to form linear step growth polymers, whereas multifunctional monomers react to form non-linear or branched polymers.
As the step-growth polymerization involves step-wise condensation of monomers, the molecular weight also builds up eventually. Consequently, high molecular weight polymers are obtained at the late stages of the polymerization, where 99% of monomers have been consumed.
The extent of the...
2.2K
Polymers: Molecular Weight Distribution01:10

Polymers: Molecular Weight Distribution

3.4K
For any given polymer, the weight average molecular weight (Mw) is higher than, if not equal to, the number average molecular weight (Mn). The only situation in which the weight average molecular weight and the number average molecular weight are equal is when a polymer consists only of chains with equal molecular weight. However, this never happens in a synthetic polymer, since it is difficult to control the polymerization process up to a molecular level with accuracy to a hundred percent.
3.4K
Characteristics and Nomenclature of Copolymers01:24

Characteristics and Nomenclature of Copolymers

2.5K
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...
2.5K

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Updated: Jul 3, 2025

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

Published on: August 2, 2012

18.7K

Sustainable Supramolecular Polymers.

Luping Wang1, Yuwen Meng1, Xu Wang1

  • 1National Engineering Research Center for Colloidal Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong, 250100, P. R. China.

Chempluschem
|February 15, 2024
PubMed
Summary
This summary is machine-generated.

Scientists developed ultra-tough, recyclable supramolecular polymers (SSPs) by tuning interactions, enabling healing of inert materials. This innovation advances sustainable materials and a regenerative economy.

Keywords:
chemical reaction networkshealable materialsrecyclable materialssupramolecular polymerstransient materials

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Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Sustainable Chemistry

Background:

  • Polymer waste presents a significant environmental challenge.
  • Developing sustainable and recyclable polymer alternatives is crucial.

Purpose of the Study:

  • To explore the fabrication of sustainable supramolecular polymers (SSPs).
  • To address the balance between mechanical strength and recyclability in polymers.
  • To enable self-healing capabilities in kinetically inert polymer materials.

Main Methods:

  • Fabrication of SSPs by tailoring mismatched supramolecular interactions.
  • Investigating methods for multi-recyclable and ultra-tough polymer synthesis.
  • Implementing transient regulation of interfacial reactivity for material healing.

Main Results:

  • Achieved ultra-tough and multi-recyclable supramolecular polymers.
  • Demonstrated healing of kinetically inert polymer materials.
  • Proposed a development trajectory for transient materials as next-generation SSPs.

Conclusions:

  • Tailoring supramolecular interactions is key to balancing performance and sustainability.
  • Transient regulation offers a pathway for self-healing in polymers.
  • SSPs represent a significant advancement towards a regenerative economy in materials science.