Now showing items 1-10 of 1764
Effect of chemical modifications on the electronic structure of poly(3-hexylthiophene)
The widespread use of poly(3-hexylthiophene) (P3HT) in the active layers of organic solar cells indicates that it possesses chemical stability and solubility suitable for such an application. However, it would be desirable ...
Electronic localization in organic conjugated polymers.
(Sociedade Brasileira de Pesquisas em Materiais.Campos do Jordão, 2013-09-29)
Conjugated polymers are promising organic materials for the development of photovoltaic devices, and the main opto-electronic features are currently under intense study. Concerning the effects induced by disorder effects, ...
Bicontinuous networks made of polyphosphates and of thermoplastic polymers
(Elsevier Sci LtdOxfordInglaterra, 1997)
Structure of P3HT in the solid state
Poly(3-hexylthiophene) (P3HT) is a polymer widely used in organic photovoltaic devices. Discrepancies in information exist in the literature about its morphological structure in solution and in the solid state. This work ...
Films from resistant starch-pectin dispersions intended for colonic drug delivery
Free films were obtained by the solvent casting method from retrograded starch-pectin dispersions at different polymer proportions and concentrations with and without plasticizer. Film forming dispersions were characterized ...
Ecotoxicity Evaluation of the Biodegradable Polymers PLA, PBAT and its Blends Using Allium cepa as Test Organism
Biodegradable polymers are considered a feasible option to minimize the environment impacts of high disposal of solid waste. Nevertheless, environmental safety of these materials is a few explored issue. In this context, ...
The improvement of thin polymer film properties through plasma immersion ion implantation and deposition technique
Thin polymer films were deposited from acetylene and argon mixtures by plasma immersion ion implantation and deposition. The effect of the pulse frequency, v, on molecular structure, optical gap, contact angle and hardness ...
Polaronic ferromagnetism in conducting polymers
Ferromagnetic behavior at room temperature is reported in metal-free-conducting polymer samples of poly(3-methylthiophene) doped with ClO 4 -. Magnetic moments associated with spin 1/2 positive polarons are possibly ...
A selective conductive polymer-based sensor for volatile halogenated organic compounds (VHOC)
(ELSEVIER SCIENCE SA, 2008)
A novel poly(p-xylylene), PPX, derivative bearing alkoxyphenyl side groups was electrochemically synthesized in 87% yield. The polymer, poly(4`-hexyloxy-2,5-biphenyleneethylene) (PHBPE), presented a fraction (92%) soluble ...