4.7 Article

Synthesis of cationic polymer-grafted cellulose by aqueous ATRP

Journal

JOURNAL OF COLLOID AND INTERFACE SCIENCE
Volume 333, Issue 1, Pages 145-151

Publisher

ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2009.01.050

Keywords

Atom transfer radical polymerization (ATRP); Cellulose fibers; Cationic polymer

Funding

  1. NSERC

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We describe the synthesis of cellulose fibers densely grafted with the cationic polymer poly[2-(methicryloyloxy)ethyl]-trimethylammoniumchloride (PMeDMA) through aqueous ATRP. The hydroxyl groups present on the cellulose surface were exploited to initiate the ATRP polymerization of MeDMA. We first grafted a bromide initiator, known to be an efficient initiator for ATRP, on the Cellulose Surface from which the polymer was then directly grown. The resulting fibers/PMeDMA complex was analyzed with infra-red, XPS and SEM techniques and present clear evidences that the polymer is present on the cellulose surface. In order to better characterize the polymer, sacrificial initiators were also added in the mixture and subsequently recovered for analysis. Size exclusion chromatography shows that the polymerization in this heterogeneous medium was controlled. Finally, we show that the mechanical properties of test hand sheets made from modified pulp are markedly improved by the grafting of the cationic PMeDMA. (C) 2009 Elsevier Inc. All rights reserved.

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