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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.
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...
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Step-Growth Polymerization: Overview01:03

Step-Growth Polymerization: Overview

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

Anionic Chain-Growth Polymerization: Overview

2.2K
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,...
2.2K
Ziegler–Natta Chain-Growth Polymerization: Overview01:17

Ziegler–Natta Chain-Growth Polymerization: Overview

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

Molecular Weight of Step-Growth Polymers

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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...
2.3K
Anionic Chain-Growth Polymerization: Mechanism01:04

Anionic Chain-Growth Polymerization: Mechanism

2.1K
The mechanism for anionic chain-growth polymerization involves initiation, propagation, and termination steps. In the initiation step, a nucleophilic anion, such as butyl lithium, initiates the polymerization process by attacking the π bond of the vinylic monomer. As a result, a carbanion, stabilized by the electron‐withdrawing group, is generated. The resulting carbanion acts as a Michael donor in the propagation step and attacks the second vinylic monomer, which acts as a Michael...
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Related Experiment Video

Updated: Sep 14, 2025

Procedure for Fabricating Biofunctional Nanofibers
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Progress and Prospect for Conducting Polymer Fibers.

Shouwen Zhu1,2,3, Yingying Huang1,2,3, Bo Fang1,2,3

  • 1Research Institute for Intelligent Wearable Systems, The Hong Kong Polytechnic University, Hong Kong, 999077, China.

Advanced Materials (Deerfield Beach, Fla.)
|July 21, 2025
PubMed
Summary

Conducting polymer fibers (CPFs) offer flexible, conductive, and biocompatible materials for advanced electronics. This review details their structure-property relationships, fabrication, and applications in wearable technology and bio-probes.

Keywords:
conducting polymer fiberfiber electronicsflexible electronicsfunctional fiberssmart fibers

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Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Electrical Engineering

Background:

  • Conducting polymer fibers (CPFs) combine mechanical flexibility with high electrical conductivity.
  • Their unique electrochemical activity and biocompatibility enable novel applications in fibrous and textile electronics.
  • The performance of CPFs is intrinsically linked to their multilevel chain aggregate structures.

Purpose of the Study:

  • To review the latest research on conducting polymer fibers (CPFs).
  • To elucidate the structure-performance relationships in CPFs.
  • To discuss recent advancements, challenges, and future applications of CPFs in flexible electronics.

Main Methods:

  • Review of existing literature on CPFs.
  • Analysis of fabrication methods and performance metrics.
  • Discussion of structure-property correlations and microstructural control.

Main Results:

  • CPFs exhibit a wide range of applications from lightweight conductors to wearable devices.
  • Multilevel structures significantly influence the overall properties and performance of CPFs.
  • Optimized microstructures lead to enhanced performance for applications like energy converters and biological probes.

Conclusions:

  • Understanding the structure-performance relationship is crucial for developing high-performance CPFs.
  • CPFs hold significant potential for advanced flexible electronics, wearable systems, and biomedical applications.
  • Further research into microstructural control and fabrication is needed to overcome existing challenges and unlock new applications.