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Characteristics and Nomenclature of Copolymers

Characteristics and Nomenclature of Copolymers

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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3D Printing and In Situ Surface Modification via Type I Photoinitiated Reversible Addition-Fragmentation Chain Transfer Polymerization

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3D Printed CO₂ -Based Triblock Copolymers and Post-Printing Modification.

Peiran Wei¹, Gulzar A Bhat², Ciera E Cipriani³

¹Soft Matter Facility, Texas A&M University, 1313 Research Parkway, College Station, TX, 77845, USA.

Angewandte Chemie (International Ed. in English)

|July 26, 2022

Summary

This summary is machine-generated.

This study presents a straightforward method for synthesizing and 3D printing triblock copolymers with tunable properties. The resulting porous materials can be further modified using click chemistry or cross-linking for enhanced functionality.

Keywords:

3D Printing Block Copolymers Click Reaction Polycarbonates Surface Modification

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Area of Science:

Polymer Chemistry
Materials Science
3D Printing

Background:

Triblock copolymers offer versatile material properties.
3D printing enables complex structure fabrication.
Post-modification of printed materials enhances functionality.

Purpose of the Study:

To develop a facile synthesis and 3D printing method for triblock copolymers.
To demonstrate covalent modification of polymer surfaces.
To create tunable porous materials with advanced applications.

Main Methods:

One-pot, two-step synthesis of triblock copolymers using a salenCo(III)TFA/PPNTFA catalyst and 1,2-propanediol.
Formulation of thixotropic inks with block copolymers and NaCl particles for direct ink write printing.
Fabrication of porous structures via solvent/NaCl removal and post-modification using UV-initiated thiol-ene click reactions or tetra-thiol cross-linking.

Main Results:

Efficient synthesis and 3D printing of triblock copolymers with tailored thermal and mechanical properties.
Successful surface modification of printed porous structures via click chemistry.
Creation of solvent-resistant and selectively degradable objects through cross-linking.

Conclusions:

The developed strategy provides a versatile platform for creating functional 3D printed materials.
Covalent modification and cross-linking offer pathways to advanced material properties.
This approach facilitates the design of custom materials for diverse applications.