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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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Updated: Apr 13, 2026

Novel Techniques for Observing Structural Dynamics of Photoresponsive Liquid Crystals

Novel Techniques for Observing Structural Dynamics of Photoresponsive Liquid Crystals

Published on: May 29, 2018

Printable Block Molecular Assemblies with Controlled Exciton Dynamics.

Zongshang Li¹, Jihyuk Yang¹, Fengke Sun²

¹Department of Chemistry, State Key Laboratory of Synthetic Chemistry, HKU-CAS Joint Laboratory on New Materials, The University of Hong Kong, Pokfulam Road, Hong Kong, China.

Advanced Materials (Deerfield Beach, Fla.)

|March 29, 2024

Summary

This summary is machine-generated.

Researchers developed printable molecular heterostructures with controlled exciton dynamics. These 3D-printed materials enable precise patterning for advanced photonic computing and information storage applications.

Keywords:

3D printing exciton dynamics molecular heterostructure organic phosphorescence self‐assembly

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Interactive Molecular Model Assembly with 3D Printing

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Published on: August 13, 2020

Area of Science:

Materials Science
Nanotechnology
Organic Electronics

Background:

Hierarchical molecular block heterostructures offer potential for advanced applications like information storage and photonic computing.
Precise control over molecular assembly positioning and exciton dynamics within nanoblocks remains a significant challenge.

Purpose of the Study:

To demonstrate the first fabrication of molecular heterostructures with controlled exciton dynamics in each block.
To develop printable and precisely positionable molecular heterostructures using Direct Ink Writing (DIW) 3D printing.

Main Methods:

Fabrication of hierarchical molecular block heterostructures.
Utilizing Direct Ink Writing (DIW) 3D printing for precise positioning and patterning.
Characterization of exciton dynamics (singlet and triplet) and energy transfer processes.

Main Results:

Successfully fabricated molecular heterostructures with controlled exciton dynamics.
Demonstrated simultaneous presence of singlet and triplet excitons with distinct lifetimes in different blocks.
Achieved efficient energy transfer across the heterojunction.
Exhibited stimuli-responsive emission properties based on laser excitation parameters.

Conclusions:

The developed organic heterostructures are printable and allow for programmable patterning.
These materials offer simultaneous control over fluorescence and phosphorescence, coupled with efficient energy transfer and stimulus sensitivity.
Potential applications in integrated photonics and advanced functional devices are foreseen.