Nafion (R)/(Organically Modified Silicate) Nanocomposites via Polymer In Situ Sol-Gel Reactions: Mechanical Tensile Properties
Document Type
Article
Publication Date
10-1-2002
Department
Polymers and High Performance Materials
Abstract
A series of Nafion((R))/[organically modified silicate (ORMOSIL)] hybrid materials have been created by in situ sol-gel copolymerizations of tetraethylorthosilicate and semiorganic silicon alkoxide monomers. The trends in the mechanical tensile properties of these hybrid materials were largely rationalized in terms of the entrapment of the long sulfonic acid side chains in silicate or ORMOSIL structures. There is a significant increase in the mechanical strength relative to that of unfilled Nafion((R)) except in one case. Young's modulus is enhanced relative to that of unfilled acid form Nafion((R)) in a number of cases, although the degree of ductility is reduced relative to that of unfilled Nafion((R)). The filler fractions are beneath a critical value that would reflect percolation of a glassy, direct load-bearing silicate phase. (C) 2002 Wiley Periodicals, Inc.
Publication Title
Journal of Polymer Science Part B-Polymer Physics
Volume
40
Issue
19
First Page
2237
Last Page
2247
Recommended Citation
Young, S.,
Mauritz, K. A.
(2002). Nafion (R)/(Organically Modified Silicate) Nanocomposites via Polymer In Situ Sol-Gel Reactions: Mechanical Tensile Properties. Journal of Polymer Science Part B-Polymer Physics, 40(19), 2237-2247.
Available at: https://aquila.usm.edu/fac_pubs/3485