Thin film construction and characterization and gas-sensing performances of a tailored phenylene-thienylene copolymer

Journal of the American Chemical Society
Francesco NasoLudovico Valli

Abstract

An alternating copolymer, poly(2,5-dioctyloxy-1,4-phenylene-alt-2,5-thienylene), has been synthesized and used in this research. The behavior of the floating film at the air-water interface has been investigated by measuring surface pressure versus area Langmuir isotherms and contemporaneously by reflection spectroscopy and Brewster angle microscopy. The floating films were transferred by the Langmuir-Schäfer (horizontal lifting) method onto various substrates. It is apparent from these analyses that the effective conjugation length is larger than those in other electroactive polymers and that a strong coplanarity and interchain association takes place above all in the floating film on the water surface and in the transferred multilayers. Such films were used as the active layers in resistive chemical gas sensor devices, thus revealing excellent sensitivity toward NO(2), reversibility, and time stability of the response.

References

Mar 2, 1998·Angewandte Chemie·Arno KraftAndrew B Holmes

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Citations

Jan 1, 2009·Nanoscale Research Letters·Jae Young ParkSang Sub Kim
May 31, 2007·Chemical Society Reviews·Lourdes Basabe-DesmontsMercedes Crego-Calama
Sep 29, 2015·Soft Matter·Rabibrata Mukherjee, Ashutosh Sharma
Apr 22, 2008·Nature Materials·Luisa TorsiFrancesco Naso
Oct 3, 2019·Physical Review. E·Yixin ZhangDuncan A Lockerby
Nov 11, 2008·Langmuir : the ACS Journal of Surfaces and Colloids·Chris S HodgesDavid Gidalevitz
Jun 8, 2007·The Journal of Physical Chemistry. B·Ana VillaresFèlix M Royo

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