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Related Concept Videos

Characteristics and Nomenclature of Copolymers01:24

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Copolymers are the products obtained from the polymerization of multiple monomer species. So, in a polymer chain itself, there can be multiple repeating units that come from different monomers. The process of synthesizing a polymer from different monomer species is called copolymerization. When two monomers are involved, the polymer is known as a bipolymer. Polymers with three and four monomers are termed terpolymers and quaterpolymers, respectively. Figure 1 depicts the copolymerization of...
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Related Experiment Video

Updated: Dec 31, 2025

Using Polystyrene-block-polyacrylic acid-coated Metal Nanoparticles as Monomers for Their Homo- and Co-polymerization
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Polymer Stereocomplexation as a Scalable Platform for Nanoparticle Assembly.

Allison Abdilla, Neil D Dolinski, Puck de Roos

  • 1Department of Chemical Engineering , Louisiana State University , Baton Rouge , Louisiana 70803 , United States.

Journal of the American Chemical Society
|January 8, 2020
PubMed
Summary
This summary is machine-generated.

Researchers developed a scalable method using poly(methyl methacrylate) (PMMA) triple-helices for nanoparticle assembly, offering a cost-effective alternative to DNA-based nanomaterials.

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Polymer Chemistry

Background:

  • DNA-mediated assembly is a key method for creating functional nanomaterials.
  • This approach offers unique optical and electrical properties.
  • However, DNA-based methods can be costly and complex.

Purpose of the Study:

  • To develop a generalizable, gram-scale method for nanoparticle assembly.
  • To utilize poly(methyl methacrylate) (PMMA) triple-helix formation for this purpose.
  • To offer a cost-effective and versatile alternative to DNA-based assembly.

Main Methods:

  • Preparation of alkene-terminated syndiotactic (st-) and isotactic (it-) PMMA polymers.
  • Functionalization of PMMA polymers to create nanoparticle ligands.
  • Spontaneous assembly of nanoparticles with complementary st- and it-PMMA ligands upon mixing.

Main Results:

  • Successful gram-scale assembly of nanoparticles via PMMA triple-helices.
  • The assembly process was robust and reversible with heating and cooling cycles.
  • Demonstrated versatility by assembling hybrid structures of different nanoparticle compositions and shapes.

Conclusions:

  • PMMA stereocomplexation provides a versatile and scalable platform for nanoparticle self-assembly.
  • This method is a promising, cost-effective alternative to DNA-based nanomaterials.
  • The approach enables the creation of complex hybrid nanostructures.