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Olefin Metathesis Polymerization: Ring-Opening Metathesis Polymerization (ROMP)01:16

Olefin Metathesis Polymerization: Ring-Opening Metathesis Polymerization (ROMP)

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Ring-opening metathesis polymerization or ROMP involves strained cycloalkenes as starting materials. The mechanism of ROMP proceeds by reacting cycloalkene with Grubbs catalyst to give metallacyclobutane intermediate which undergoes a ring-opening reaction to form new carbene. The new carbene reacts with another molecule of cycloalkene. Repetition of these steps leads to the formation of an unsaturated open-chain polymer product. All these steps are reversible, however, relieving the ring...
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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.
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Properties of Organometallic Compounds

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Organometallic compounds are compounds that contain a carbon–metal bond. Carbon belongs to an organyl group like alkyl, aryl, allyl, or benzyl groups. The metal can be from Group I or Group II of the periodic table, a transition metal, or a semimetal.
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Acyclic diene metathesis polymerization or ADMET polymerization involves cross-metathesis of terminal dienes, such as 1,8-nonadiene, to give linear unsaturated polymer and ethylene. As ADMET is a reversible process, the formed ethylene gas must be removed from the reaction mixture to complete the polymerization process.
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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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Due to their highly strained structures, epoxides can readily undergo ring-opening reactions through nucleophilic substitution, either in the presence of an acid or a base. The nucleophilic substitution reactions in the presence of acid are called acid-catalyzed ring-opening reactions, and nucleophilic substitution reactions in the presence of a base are called base-catalyzed ring-opening reactions. Epoxides undergo base-catalyzed ring-opening reactions in the presence of a strong nucleophile...
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ROMP Synthesis of Iron-Containing Organometallic Polymers.

Ileana Dragutan1, Valerian Dragutan2, Petru Filip3

  • 1Institute of Organic Chemistry, Romanian Academy, 202B Spl. Independentei, P. O. Box 35-108, Bucharest 060023, Romania. idragutan@yahoo.com.

Molecules (Basel, Switzerland)
|February 11, 2016
PubMed
Summary
This summary is machine-generated.

This study reviews iron-containing polymers made using controlled ring-opening metathesis polymerization (ROMP). It highlights synthesis methods and new applications for these advanced hybrid materials.

Keywords:
ROMPferrocenehybrid materialsiron-containing polymerssandwich-complexes

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Area of Science:

  • Organometallic Chemistry
  • Polymer Science
  • Materials Science

Background:

  • Iron-containing polymers are a growing area of research.
  • Controlled polymerization techniques are crucial for designing advanced materials.

Purpose of the Study:

  • To provide an overview of iron-containing polymers synthesized via controlled "living" ring-opening metathesis polymerization (ROMP).
  • To highlight recent developments in the synthesis and design of these organometallic polymers.
  • To discuss emerging trends and applications of iron-functionalized hybrid materials.

Main Methods:

  • Controlled "living" ring-opening metathesis polymerization (ROMP).
  • Synthesis and characterization of iron-containing polymers.
  • Exploration of hybrid material applications.

Main Results:

  • Successful synthesis of iron-containing polymers using controlled ROMP.
  • Demonstration of tunable polymer properties through controlled polymerization.
  • Identification of advanced applications for these functionalized materials.

Conclusions:

  • Controlled ROMP is an effective method for preparing well-defined iron-containing polymers.
  • These organometallic polymers offer significant potential in advanced hybrid material applications.
  • Future research trends focus on novel synthesis and expanded applications.