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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,...
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Published on: October 29, 2013

Poly(meth)acrylates obtained by cascade reaction.

Dragos Popescu1, Helmut Keul, Martin Moeller

  • 1Institute of Technical and Macromolecular Chemistry, RWTH Aachen and DWI an der RWTH Aachen e.V., Pauwelsstr. 8, D-52056 Aachen, Germany.

Macromolecular Rapid Communications
|March 26, 2011
PubMed
Summary
This summary is machine-generated.

This study introduces a cascade reaction method for synthesizing functional monomers and polymers. Enzymatic transacylation followed by radical polymerization simplifies the production of specialized poly(meth)acrylates.

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Area of Science:

  • Polymer Chemistry
  • Organic Synthesis
  • Biocatalysis

Background:

  • Functional (meth)acrylates with high dipole moments are challenging to prepare, requiring complex purification and stabilization.
  • Highly reactive functional monomers necessitate specialized handling and processing techniques.

Purpose of the Study:

  • To develop a streamlined, cost-effective method for synthesizing functional (meth)acrylates and their corresponding polymers.
  • To circumvent the need for purification and stabilization of reactive monomers through a cascade reaction approach.

Main Methods:

  • Enzymatic transacylation of methyl acrylate (MA) and methyl methacrylate (MMA) with various alcohols, diols, and triols using Novozyme 435.
  • Subsequent free radical polymerization (FRP) or nitroxide mediated radical polymerization (NMP) of the synthesized functional monomers.
  • Incorporation of hydrophilic, hydrophobic, and ionic units into the polymer backbone.

Main Results:

  • Successful synthesis of functional (meth)acrylates under mild conditions via enzymatic transacylation.
  • Production of poly[(meth)acrylate]s with controlled functionalities through cascade polymerization.
  • Demonstration of the versatility in assembling diverse repeating units within copolymers.

Conclusions:

  • The developed cascade reaction strategy offers an efficient and rapid route for preparing sensitive functional monomers.
  • This approach simplifies the synthesis of functional (meth)acrylates and polymers, reducing complexity and cost.
  • The method enables the creation of advanced copolymers with tailored properties for various applications.