Donato Colangiuli

Synthesis of poly(aryleneethynylene)s bearing glucose units as substituentsElectronic supplementary information (ESI) available: experimental procedures and related references, and IR and NMR spectra of all the compounds. See http://www.rsc.org/suppdata/cc/b2/b207753a/

A series of poly(aryleneethynylene)s functionalized with acetylated glucopyranosyl units were synthesized by the Pd-catalyzed reaction of trimethylsilylethynyl derivatives with aromatic halides in the presence of silver oxide.

Spectroscopic ellipsometry for characterization of organic semiconductor polymeric thin films

Abstract The correlation between the optical properties and microstructural parameters of organic semiconductor polymeric thin films is investigated by spectroscopic ellipsometry. Different poly(arylenephenylene)-based films have been deposited by spincoating. The effect of deposition conditions on the microstructure and, hence, optical constants of the polymeric thin films and the dependence of the optical properties and π–π ∗ transition on the structure of the chain backbone are studied.

A General Strategy for the Synthesis of Conjugated Polymers Based upon the Palladium-Catalysed Cross-Coupling of Grignard Reagents with Unsaturated Halides

Palladium-catalysed cross-coupling between aromatic bis-organomagnesium reagents and aromatic dihalides has been experimentally evaluated as a general methodology for the synthesis of soluble conjugated polymers such as poly(p-phenylene)s 6 and 7, poly(p-terphenylenevinylene) 8, poly(phenylenethiophene) 9 and poly(phenylenepyridine) 10. Appropriate experimental conditions were first found in model reactions and then applied to the synthesis of polymers. Molecular mass values were determined both by GPC and by MALDI-TOF spectrometry. The latter technique also permitted accurate determination of the terminal groups of the polymeric chains. (© Wiley-VCH Verlag GmbH, 69451 Weinheim, Germany, 2002)

A poly(phenyleneethynylene) polymer bearing amino acid substituents as active layer in enantioselective solid-state sensors

A poly(phenyleneethynylene) polymer bearing amino acid pendant groups is used as enantioselective active layer in solid-state sensing devices. The chiral analyte in the present study is menthol in both the natural (-) and synthetic (+) enantiomers. The polymer bearing amino acid chiral sites is demonstrated to interact more favorably with the natural menthol than the synthetic one in a quartz crystal microbalance revealing system. Promising perspectives are seen for the use of such polymers in chiral discriminating, chemically sensitive resistors or even transistors.

Tailored conjugated polymer Langmuir-Schäfer thin films in sensing transistors

Organic Thin Film Transistors (OTFTs) have been fabricated, in a standard bottom gate configuration, with Langmuir-Schafer (LS) or cast thin films of regioregular poly[1,4-(2,5-dioctyloxyphenylene)-2,5-thiophene], synthesized via an organometallic protocol, as active layers. The transistors electrical characterization has evidenced that LS based devices exhibit better performance level than cast film ones. Appealing perspectives for newly substituted conjugated polymers in OTFT sensing devices are discussed.