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Related Concept Videos

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...
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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,...
Polymers02:34

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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,...
Polymers02:34

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Related Experiment Video

Updated: Jun 2, 2026

Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level
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Published on: September 26, 2016

Peering Through the Polymer: Tracking Small Molecules to Improve Polymer Development.

Callum Johnson1, Chloe M Shilling1, Matthieu Starck1

  • 1Department of Chemistry, Durham University, Lower Mount Joy, South Rd, Durham DH1 3LE, U.K.

Macromolecules
|June 1, 2026
PubMed
Summary
This summary is machine-generated.

Nuclear Magnetic Resonance (NMR) provides crucial polymer insights, but signals are often obscured. This study introduces advanced NMR techniques and processing methods to reveal hidden information for better materials development.

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Last Updated: Jun 2, 2026

Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level
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Published on: September 26, 2016

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Polymer Microarrays for High Throughput Discovery of Biomaterials
13:37

Polymer Microarrays for High Throughput Discovery of Biomaterials

Published on: January 25, 2012

Area of Science:

  • Polymer Chemistry
  • Analytical Chemistry
  • Materials Science

Background:

  • Nuclear Magnetic Resonance (NMR) is essential for polymer research, offering insights into monomer uptake, degradation, and impurities.
  • However, broad polymer signals often mask critical information needed for materials development.
  • Established NMR relaxation methods are powerful but frequently misunderstood.

Purpose of the Study:

  • To overcome the challenge of obscured information in polymer NMR spectra.
  • To provide a comprehensive understanding of established and novel NMR techniques for polymer analysis.
  • To enable the identification of low-concentration species and optimize polymer development.

Main Methods:

  • Rationalization of established relaxation methods: CPMG, PROJECT, and WASTED.
  • Introduction of advanced techniques: T2-filtered pure shift and Diffusion Ordered Spectroscopy (DOSY).
  • Demonstration of signal processing to isolate polymer signals in COSY and HSQC experiments.

Main Results:

  • Established NMR relaxation methods are clarified for practical application.
  • Novel T2-filtered pure shift and DOSY methods are presented for enhanced spectral resolution.
  • Simple processing strategies effectively remove broad polymer signals, revealing hidden information.

Conclusions:

  • This toolkit of NMR methods and processing techniques enhances the ability to identify unwanted species and impurities in polymers.
  • The presented methods facilitate reaction optimization and improve product development in polymer science.
  • Advanced NMR analysis is key to unlocking detailed molecular information previously hidden in complex polymer systems.