Sulfonated Styrene-(ethylene-co-butylene)-styrene/Montmorillonite Clay Nanocomposites: Synthesis, Morphology, and Properties |
| |
Authors: | Anirban Ganguly Anil K Bhowmick |
| |
Affiliation: | (1) Rubber Technology Centre, Indian Institute of Technology, Kharagpur, Kharagpur, 721302, India |
| |
Abstract: | Sulfonated styrene-(ethylene-butylene)-styrene triblock copolymer (SSEBS) was synthesized by reaction of acetyl sulfate with
SEBS. SSESB-clay nanocomposites were then prepared from hydrophilic Na-montmorillonite (MT) and organically (quaternary amine)
modified hydrophobic nanoclay (OMT) at very low loading. SEBS did not show improvement in properties with MT-based nanocomposites.
On sulfonation (3 and 6 weight%) of SEBS, hydrophilic MT clay-based nanocomposites exhibited better mechanical, dynamic mechanical,
and thermal properties, and also controlled water–methanol mixture uptake and permeation and AC resistance. Microstructure
determined by X-ray diffraction, atomic force microscopy, and transmission electron microscopy due to better dispersion of
MT nanoclay particles and interaction of MT with SSEBS matrix was responsible for this effect. The resulting nanocomposites
have potential as proton transfer membranes for Fuel Cell applications. |
| |
Keywords: | SEBS Sulfonation Montmorillonite clay Nanocomposites |
本文献已被 SpringerLink 等数据库收录! |
|