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Photopolymerization of acrylamide induced by colloidal graphene oxide

Paper ID Volume ID Publish Year Pages File Format Full-Text
27168 44006 2013 6 PDF Available
Title
Photopolymerization of acrylamide induced by colloidal graphene oxide
Abstract

Photochemical activity of colloidal graphene oxide in initiating of the acrylamide photopolymerization in aqueous solutions under the illumination with the visible light (λ > 420 nm) is reported for the first time. By photochemical activity graphene oxide occupies an intermediary place among typical visible-light-sensitive water-soluble photoinitiators of acrylamide polymerization. The photoinitiation involves photoexcited oxygen-containing functional groups of graphene oxide particles, the polymerization rate growing with an increase in the content of such functional groups and lowering drastically at their photoinduced elimination. The photopolymerization kinetics indicates the possibility of graphene oxide participation in the chain termination and shows that the aggregation of graphene oxide particles results in a decrease of their photochemical activity.

► Graphene oxide is a photoinitiator of acrylamide polymerization. ► Polymerization is induced by photoelimination of functional groups of graphene oxide. ► Photopolymerization rate decreases after reduction of graphene oxide. ► Photopolymerization rate depends on the aggregation degree of graphene oxide nanosheets.

Keywords
Graphene; Colloidal graphene oxide; Photopolymerization; Acrylamide
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 256, 15 March 2013, Pages 1–6
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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Price was $35.95
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