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Shape Memory Polymers for Active Cell Culture

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Published on: July 4, 2011

A Photoorganizable Triple Shape Memory Polymer for Deployable Devices.

Jiahao Sun¹, Bo Peng¹, Yao Lu¹

¹Department of Materials Science and State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200433, China.

Small (Weinheim an Der Bergstrasse, Germany)

|December 17, 2021

Summary

This summary is machine-generated.

Researchers developed a novel photoorganizable triple shape memory polymer (POTSMP) for aerospace applications. This smart material enables programmable deformation, in situ repair, and complex 3D structure manufacturing using light stimuli.

Keywords:

azobenzene-containing polymers light reconfiguration photoorganizable performance smart deployable structures triple shape memory

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Area of Science:

Materials Science
Polymer Chemistry
Aerospace Engineering

Background:

Stimuli-responsive materials offer potential for advanced deployable devices in aerospace.
Current smart materials often lack in situ repair capabilities and complex shape programmability.

Purpose of the Study:

To develop a novel photoorganizable triple shape memory polymer (POTSMP) for aerospace applications.
To achieve remote-controlled programmable deformation and in situ repair using light stimuli.

Main Methods:

Synthesis of an azobenzene-containing thermoplastic polyurethane as the POTSMP.
Utilizing UV and visible light illumination for shape programming and recovery.
Employing UV irradiation for rapid light-reconfiguration, including light-reshaping and light-welding.

Main Results:

The POTSMP demonstrated arbitrary programming of two temporary shapes and precise, stepwise shape recovery.
Rapid light-reconfiguration (reshaping and welding) was achieved in seconds via UV irradiation.
Facile manufacturing of complex 2D/3D structures without specialized molds was enabled.

Conclusions:

The developed POTSMP offers versatile photoresponsive capabilities for smart deployable devices.
This material facilitates in situ repair and complex structure fabrication, extending device service life.
POTSMP shows significant potential for advancing photoresponsive triple shape memory polymers in aerospace.