NDLI: Facile <i>in-situ</i> fabrication of novel organic nanoparticle hydrogels with excellent mechanical properties

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Facile in-situ fabrication of novel organic nanoparticle hydrogels with excellent mechanical properties

Content Provider	Royal Society of Chemistry (RSC)
Author	Zhou, Zhe Fan, Qingqing Wu, Yongtao Chen, Long Zhu, Meifang
Copyright Year	2009
Abstract	A kind of well-defined organic nanoparticle composite polyacrylamide (PAAm) hydrogels (OC gels) are successfully fabricated using in-situ free-radical polymerization with polystyrene (PS) nanoparticles as the cross-linker. These gels show excellent mechanical properties for the uniform dispersion of the organic cross-linker which is prepared by emulsifier-free emulsion polymerization. In addition, a particular swelling behavior is also revealed due to the introduced hydrophobic PS nanoparticles. Both the mechanical and swelling properties show obvious changes with various contents of PS nanoparticle and acrylamide (AAm) monomer in the initial reaction solution. The mechanism for OC gels formation is proposed, and it is validated that the hydrogen bonding interaction among polymer chains also plays an important role in the network formation in addition to the combination of the mutual termination of the attached radical chains on vicinal particles. Besides, the facile route is feasible to design stabilized and functional hydrogels with excellent mechanical properties without affecting the original properties of hydrogels.
Starting Page	7340
Ending Page	7346
Page Count	7
File Format	HTM / HTML PDF
ISSN	09599428
Volume Number	19
Issue Number	39
Journal	Journal of Materials Chemistry
DOI	10.1039/b909125d
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Nanoparticle Polyacrylamide Open-pit mining Radical polymerization Polystyrene London dispersion force Emulsion polymerization Hydrophobe Acrylamide Asociación Amateurs de Football Monomer Hydrogen bond Polymer Thin film
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Chemistry

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