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Related Experiment Video

Updated: Dec 14, 2025

Fabricating Reactive Surfaces with Brush-like and Crosslinked Films of Azlactone-Functionalized Block Co-Polymers

Fabricating Reactive Surfaces with Brush-like and Crosslinked Films of Azlactone-Functionalized Block Co-Polymers

Published on: June 30, 2018

Polymer phase separation on lattice patterned surfaces.

Piers Andrew¹, Wilhelm T S Huck²

¹The Nanoscience Centre, University of Cambridge, 11 J. J. Thomson Avenue, Cambridge, UKCB3 0FF. pa258@cam.ac.uk.

|July 19, 2020

Summary

This summary is machine-generated.

We show how to control polymer microstructures on patterned surfaces. By adjusting film thickness and blend composition, diverse hierarchical structures form, even when conditions aren't ideal for pattern replication.

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Last Updated: Dec 14, 2025

Fabricating Reactive Surfaces with Brush-like and Crosslinked Films of Azlactone-Functionalized Block Co-Polymers

Fabricating Reactive Surfaces with Brush-like and Crosslinked Films of Azlactone-Functionalized Block Co-Polymers

Published on: June 30, 2018

Stable DNA Motifs, 1D and 2D Nanostructures Constructed from Small Circular DNA Molecules

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Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives

Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives

Published on: February 7, 2017

Area of Science:

Polymer Science
Materials Science
Surface Science

Background:

Phase separation in polymer blends is crucial for microstructure formation.
Chemically patterned surfaces can guide polymer self-assembly.
Controlling microstructure morphology is key for advanced material properties.

Purpose of the Study:

To investigate the self-organization of phase-separated polymer microstructures on 2D chemically patterned surfaces.
To explore the formation of hierarchical microstructures under various conditions.
To understand the role of film thickness and blend composition in dictating morphology.

Main Methods:

Fabrication of phase-separated polymer microstructures on patterned substrates.
Systematic variation of polymer blend composition and film thickness.
Characterization of resulting microstructures using microscopy and surface analysis techniques.

Main Results:

Demonstrated self-organization of polymer microstructures on patterned surfaces.
Observed pattern replication under specific blend composition and pattern periodicity conditions.
Revealed the formation of diverse hierarchical microstructures even when conditions deviated from ideal replication.
Identified that non-equilibrium structures are locked by rapid solvent quenching.

Conclusions:

Ordered polymer microstructures can be achieved on patterned surfaces beyond simple pattern replication.
Film thickness and blend composition offer tunable parameters for creating complex hierarchical morphologies.
Rapid solvent quenching plays a critical role in preserving non-equilibrium structures, leading to hierarchical ordering.