In:
Macromolecular Rapid Communications, Wiley, Vol. 32, No. 14 ( 2011-07-15), p. 1047-1051
Abstract:
Fluorescence (FL) emission properties, microporous structures, energy‐minimized chain conformations, and lamellar layer structures of the silicon‐containing poly(diphenylacetylene) derivative of p ‐PTMSDPA before and after desilylation were investigated. The nitrogen‐adsorption isotherms of p ‐PTMSDPA film before and after desilylation were typical of type I, indicating microporous structures. The BET surface area and pore volume of the p ‐PTMSDPA film were significantly reduced after the desilylation reaction, simultaneously, its FL emission intensity remarkably decreased. The theoretical calculation on both model compounds of p ‐PTMSDPA and its desilylated polymer, PDPA, showed a remarkable difference in chain conformation: The side phenyl rings of p ‐PTMSDPA are discontinuously arranged in a zig‐zag pattern, while the PDPA is continuously coiled in a helical manner. The lamellar layer distance (LLD) in the p ‐PTMSDPA film significantly decreased after the desilylation reaction. magnified image
Type of Medium:
Online Resource
ISSN:
1022-1336
,
1521-3927
DOI:
10.1002/marc.201100073
Language:
English
Publisher:
Wiley
Publication Date:
2011
detail.hit.zdb_id:
1475027-2
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