Preparation of Soft Microactuators in a Continuous Flow Synthesis Using a Liquid-Crystalline Polymer Crosslinker

6533b86dfe1ef96bd12caace

RESEARCH PRODUCT

Preparation of Soft Microactuators in a Continuous Flow Synthesis Using a Liquid-Crystalline Polymer Crosslinker

Christophe A. Serra Eva-kristina Fleischmann Rudolf Zentel Christian Ohm

subject

chemistry.chemical_classification Materials science Polymers and Plastics [SPI.GPROC] Engineering Sciences [physics]/Chemical and Process Engineering Organic Chemistry Microfluidics Mesophase Polymer Condensed Matter Physics Elastomer Isothermal process chemistry.chemical_compound Monomer chemistry Polymerization Phase (matter)Polymer chemistry Materials Chemistry [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering Physical and Theoretical Chemistry

description

We present the synthesis of a polymeric liquid crystalline (LC) crosslinker and its usage in the preparation of soft microactuators. The microactuators, composed of thermoresponsive liquid crystalline elastomers (LCE), are fabricated in a microfl uidic device in a continuous “on the fl y” process. The LC polymer crosslinker is miscible with the LC monomer and provides for a rapid polymerization and crosslinking. Most importantly, it promotes an enantiotropic mesophase of the mobile monomer phase, which is not provided by conventional nonmesogenic crosslinkers. This allows an isothermal handling inside the microfl uidic setup. Temperature-driven shape changes up to 65% could be achieved by judiciously optimizing the crosslinking density of the LCE particles.

year	journal	country	edition	language
2012-08-08

10.1002/macp.201200276 https://doi.org/10.1002/macp.201200276

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