Inclusion of polyaniline filaments in zeolite molecular sieves
- Univ. of New Mexico, Albuquerque (USA)
Polyaniline has been synthesized in the channels of mordenite (one-dimensional) and zeolite Y (three-dimensional). Aniline was diffused from hexane solution into dehydrated zeolite pores containing different concentrations of framework hydroxyl groups. Addition of (NH{sub 4}){sub 2}S{sub 2}O{sub 8} to an aqueous suspension of the loaded zeolites afforded intrazeolite polyaniline chains, as demonstrated by FTIR, electronic absorption data, and recovery of the included polymer. Stoichiometric, kinetic, XPS, and microscopic data and the absence of bulk conductivity of the polymer/zeolite powders lead to the conclusion that the polymer is formed inside the host channel system. While the polyaniline chains in mordenite channels appear to be more highly oxidized than in Y zeolite, both systems show spectroscopic features typical of emeraldine base and emeraldine salt polymers. The polyaniline/zeolite hybrids represent a new class of materials containing synthetic conductors encapsulated in crystalline inorganic hosts with channel systems of molecular dimensions.
- OSTI ID:
- 7108744
- Journal Information:
- Journal of Physical Chemistry; (USA), Journal Name: Journal of Physical Chemistry; (USA) Vol. 93:17; ISSN 0022-3654; ISSN JPCHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360600* -- Other Materials
360601 -- Other Materials-- Preparation & Manufacture
ADSORBENTS
DATA
DATA ANALYSIS
EXPERIMENTAL DATA
INFORMATION
INORGANIC ION EXCHANGERS
ION EXCHANGE MATERIALS
MATERIALS
MEASURING INSTRUMENTS
MEASURING METHODS
MINERALS
MOLECULAR SIEVES
MORDENITE
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PHYSICS
POLYMERS
SILICATE MINERALS
SOLID STATE PHYSICS
ZEOLITES