Issue 17, 2017

Synthesis of CO2-responsive cellulose nanocrystals by surface-initiated Cu(0)-mediated polymerisation

Abstract

Cellulose nanocrystals (CNC) were converted into a CO2-responsive composite nanomaterial by grafting poly(dimethylaminoethy methacrylate) (PDMAEMA) and poly(diethylaminoethyl methacrylate) (PDEAEMA) on its surface using a grafting-from approach via surface-initiated copper(0)-mediated polymerisation (SI-Cu(0)-ATRP). The Cu(0)-ATRP homopolymerisation kinetics of these monomers were first studied to determine suitable conditions to perform the grafting step. Reasonable molecular weight control and livingness were observed during the polymerisations. Following functionalization of the CNC with ATRP initiating groups, a grafting-from approach was employed to graft PDMAEMA and PDEAEMA onto the CNC surface. The surface charge of the graft-modified CNC could be reversibly switched by protonation/deprotonation of the tertiary amine groups simply by sparging with CO2 and N2, respectively.

Graphical abstract: Synthesis of CO2-responsive cellulose nanocrystals by surface-initiated Cu(0)-mediated polymerisation

Supplementary files

Article information

Article type
Paper
Submitted
16 Qas 2017
Accepted
01 Leq 2017
First published
01 Leq 2017

Green Chem., 2017,19, 4141-4152

Synthesis of CO2-responsive cellulose nanocrystals by surface-initiated Cu(0)-mediated polymerisation

J. Arredondo, P. G. Jessop, P. Champagne, J. Bouchard and M. F. Cunningham, Green Chem., 2017, 19, 4141 DOI: 10.1039/C7GC01798G

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements