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Synthesis and thin-film self-assembly of radical-containing diblock copolymers

Part of: Polymers and Soft Matter

Published online by Cambridge University Press:  20 May 2015

Lizbeth Rostro ,
Aditya G. Baradwaj ,
Alexander R. Muller ,
Jennifer S. Laster  and
Bryan W. Boudouris
Lizbeth Rostro
Affiliation:
School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, USA
Aditya G. Baradwaj
Affiliation:
School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, USA
Alexander R. Muller
Affiliation:
School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, USA
Jennifer S. Laster
Affiliation:
School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, USA
Bryan W. Boudouris*
Affiliation:
School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, USA
*
Address all correspondence Bryan W. Boudouris atboudouris@purdue.edu
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Abstract

Electronically active block polymers based on π-conjugated macromolecules have been investigated for applications where nanostructured electrodes are of prime import; however, controlling the nanoscale order of these materials has proven challenging. Here, we demonstrate that diblock copolymers that utilize a non-conjugated radical polymer moiety as the electronically active block assemble into ordered thin-film nanostructures. Specifically, the diblock copolymer polydimethylsiloxane-b-poly(2,2,6,6-tetramethylpiperidinyloxy methacrylate) (PDMS–PTMA) was synthesized via atom transfer radical polymerization to generate polymers with readily controlled molecular properties. Importantly, solvent annealing of the PDMS–PTMA thin films led to well-defined nanostructures with domain spacings of the order of ~30–40 nm.

Type
Polymers/Soft Matter Research Letters
Information
MRS Communications , Volume 5 , Issue 2 , June 2015 , pp. 257 - 263
Copyright
Copyright © Materials Research Society 2015 

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