Nano Science and Technology InstituteNano Science and Technology Institute
Nano Science and Technology Institute 2005 NSTI Nanotechnology Conference & Trade Show
Nanotech 2005
Bio Nano 2005
Business & Investment
Nano Impact Workshop
Index of Authors
Index of Keywords
Keynote Presentations
Confirmed Speakers
Participating Companies
Industry Focus Sessions
Nanotech Expo
Special Symposia
Venue 2005
Press Room
Site Map
Nanotech 2005 At A Glance
Nanotech Proceedings
Nanotechnology Proceedings
Global Partner
nano tech
Supporting Organizations
Nanotech 2005 Supporting Organization
Media Sponsors
Nanotech 2005 Medias Sponsors
Event Contact
696 San Ramon Valley Blvd., Ste. 423
Danville, CA 94526
Ph: (925) 353-5004
Fx: (925) 886-8461

Polymer Nanocomposite of Montmorillonite modified with Oligomeric Amine Derivatives

D-H Lee, H.D. Sung, S.K. Noh and W.S. Lyoo
Kyungpook National University, KR

polymer nanocomposite, MMT, modifier, amine derivative

Polymer/clay nanocomposites are nanoscale level and low amounts of clay filled polymers with outstanding chemical, physical and mechanical properties that cannot be obtained with conventional macro- and micro-composites. To prepare nanocomposites, a general technique involves the compatibilization between polymer and organically modified layered silicate that intercalated with organic molecule, typically an organic alkylammouium salt. In this study, various alkyl amine and oligomeric amine derivatives were treated with montmorillonite(MMT) for the preparation of amine-modified MMT(A-MMT). With A-MMT, the polystyrene(PS)/MMT and poly(methyl methacrylate)(PMMA)/ MMT nanocomposites were prepared by the solution and in-situ polymerization methods. The structures of A-MMT and polymer nanocomposite were investigated by X-ray diffration (XRD). The modifier content in A-MMT determined by thermal gravimetric analysis(TGA) was found to be 10-40 wt% and dependent on the structure of modifier. The d-spacing of MMT measured with XRD increased by incorporation of modifier and was strongly dependent on the structure of modifier. For a modifier of oligomeric diamine, polyoxypropylenediamine (Mw: 2000), the d-spacing of A-MMT was found to be 45.3_, the largest value ever reported. With XRD, it was found that PMMA/MMT nanocomposite was exfoliated while PS/MMT nanocomposite was intercalated. This observation might be explained by the higher interaction of polar PMMA with A-MMT compared to nonpolar PS.

Back to Program

Sessions Sunday Monday Tuesday Wednesday Thursday Authors

Nanotech 2005 Conference Program Abstract

Gold Sponsors
Nanotech Gold Sponsors
Silver Sponsors
Nanotech Silver Sponsors
Gold Key Sponsors
Nanotech Gold Key Sponsors
Nanotech Ventures Sponsors
Nanotech Ventures Sponsors
Nanotech Sponsors
News Headlines
NSTI Online Community

© Nano Science and Technology Institute, all rights reserved.
Terms of use | Privacy policy | Contact