Document Type
Article
Publication Date
11-27-2013
Journal or Book Title
Macromolecules
Volume
46
Issue
23
First Page
9324
Last Page
9332
DOI
10.1021/ma4015406
Abstract
Here we report the synthesis and characterization of block copolymer/layered silicate (BCPLS) nanocomposites via the surface-initiated ring-opening metathesis polymerization (SI-ROMP) of norbornene and cyclopentene from montmorillonite clay (MMT). The MMT particle surfaces were functionalized with a norbornene-terminated alkylammonium surfactant through ion exchange. Block copolymer brushes of norbornene and cyclopentene were polymerized directly from the surface of these functionalized clay platelets, yielding highly exfoliated nanocomposites. A fraction of the polymer brushes were removed from their substrate by reverse ion exchange and characterized in parallel with their corresponding nanocomposite analogues. The thermal, mechanical, and morphological characteristics of the BCPLSs and their neat analogues were then compared directly. This enabled us to assess the role of the MMT filler in the thermal properties, solid/melt state rheology, and morphology.
Copyright Owner
American Chemical Society
Copyright Date
2013
Language
en
File Format
application/pdf
Recommended Citation
Kalluru, Sri Harsha and Cochran, Eric W., "Synthesis of Polyolefin/Layered Silicate Nanocomposites via Surface-Initiated Ring-Opening Metathesis Polymerization" (2013). Chemical and Biological Engineering Publications. 38.
https://lib.dr.iastate.edu/cbe_pubs/38
Comments
Reprinted with permission from Macromolecules 46 (2013): 9324–9332, doi:10.1021/ma4015406. Copyright 2013 American Chemical Society.