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Related Concept Videos

Polymers02:34

Polymers

41.0K
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...
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Polymers02:34

Polymers

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23.3K
Polymer Classification: Architecture01:14

Polymer Classification: Architecture

3.9K
Polymers are classified as linear or branched on the basis of their chain architecture. The polymer chains in linear polymers have a long chain-like structure with minimal to no branching at all. Even if a polymer features large substituent groups on the monomer, which appear as branches to the skeleton, it is not considered a branched polymer. A branched polymer contains secondary polymer chains that arise from the main polymer chain. The branching occurs when the polymer growth shifts from...
3.9K
Polymer Classification: Crystallinity01:21

Polymer Classification: Crystallinity

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Unlike ionic or small covalent molecules, polymers do not form crystalline solids due to the diffusion limitations of their long-chain structures. However, polymers contain microscopic crystalline domains separated by amorphous domains.
Crystalline domains are the regions where polymer chains are aligned in an orderly manner and held together in proximity by intermolecular forces. For example, chains in the crystalline domains of polyethylene and nylon are bound together by van der Waals...
4.0K
Polymer Classification: Stereospecificity01:26

Polymer Classification: Stereospecificity

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Polymerization generates chiral centers along the entire backbone of a polymer chain. Accordingly, the stereochemistry of the substituent group has a significant effect on polymer properties. Polymers formed from monosubstituted alkene monomers feature chiral carbons at every alternate position in the polymer backbone. Relative to the predominant orientation of substituents at the adjacent chiral carbons, the polymer can exist in three different configurations: isotactic, syndiotactic, and...
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Polymers: Defining Molecular Weight01:01

Polymers: Defining Molecular Weight

3.8K
Unlike small molecules with definite molecular weights, polymers are a mixture of individual polymer chains of varying lengths, each with a unique molecular weight.  So, the molecular weight of a polymer is expressed as an average value based on the average size of the polymer chains. The two most common forms of averages used for polymers are the number average molecular weight and weight average molecular weight.
The number average molecular weight (Mn) is the summation of the number...
3.8K

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Irrelevant Stimuli and Action Control: Analyzing the Influence of Ignored Stimuli via the Distractor-Response Binding Paradigm
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Irrelevant Stimuli and Action Control: Analyzing the Influence of Ignored Stimuli via the Distractor-Response Binding Paradigm

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Stimuli-Responsive Ruthenium-Containing Polymers.

Hongwei Zhou1, Mingsen Chen2,3, Yuanli Liu3

  • 1School of Materials and Chemical Engineering, Xi'an Technological University, Xi'an, 710021, P. R. China.

Macromolecular Rapid Communications
|August 10, 2018
PubMed
Summary
This summary is machine-generated.

This review covers stimuli-responsive ruthenium-containing polymers (RCPs) that change structure with external triggers. It focuses on redox and photoresponsive RCPs, detailing their principles, synthesis, and applications.

Keywords:
lightredoxrutheniumstimuli-responsive polymers

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Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Coordination Chemistry

Background:

  • Ruthenium-containing polymers (RCPs) are functional metallopolymers with tunable properties.
  • Stimuli-responsive materials are crucial for advanced applications.
  • Metallopolymers offer unique electronic and optical characteristics.

Purpose of the Study:

  • To review recent advancements in stimuli-responsive RCPs.
  • To focus on redox- and photoresponsive RCPs.
  • To discuss principles, synthesis, structures, properties, applications, and challenges.

Main Methods:

  • Literature review of recent progress in stimuli-responsive RCPs.
  • Analysis of structure-property relationships in Ru complexes.
  • Discussion of synthesis strategies and characterization techniques.

Main Results:

  • Detailed overview of redox-responsive RCPs and their mechanisms.
  • Exploration of photoresponsive RCPs and their light-induced transformations.
  • Compilation of diverse applications for these advanced materials.

Conclusions:

  • Stimuli-responsive RCPs exhibit significant potential across various fields.
  • Further research is needed to overcome current challenges in synthesis and application.
  • Understanding structure-property relationships is key for designing next-generation RCPs.