Studies of Langmuir and Langmuir-Schaefer Films of Poly(3-Hexylthiophene) and Poly(Vinylidene Fluoride)

The Journal of Physical Chemistry. B
Rafaela Cristina SanfeliceSabine Beuermann

Abstract

The synergistic use of blends of regioregular poly(3-hexylthiophene) (P3HT) and poly(vinylidene fluoride) (PVDF) or poly((vinylidene fluoride)-block-(methyl methacrylate)) (PVDF-PMMA) to form Langmuir and Langmuir-Schaefer (LS) films is reported. P3HT has wide applications in sensor devices because of its properties such as conductivity, luminescence, and chromism; however, the stiffness of the films and the difficulty in organizing the molecules may pose a problem in these applications. In this context, polymers based on PVDF can be used in the formation of thin P3HT films and present an alternative to improve the organization of P3HT molecules. In addition, PVDF acts as a plasticizer, making the film less rigid. The films were obtained from the blends of P3HT/PVDF and P3HT/PVDF-PMMA in a solution containing chloroform and DMAc (N,N-dimethylacetamide). Surface pressure isotherms, in situ ultraviolet-visible (UV-vis) spectroscopy, polarization-modulation infrared reflection-absorption spectroscopy, and Brewster angle microscopy techniques were used to analyze Langmuir films. The surface morphology of LS films was characterized by atomic force microscopy and UV-vis spectroscopy, and their degradation was analyzed by UV-vis spect...Continue Reading

References

Jul 23, 2013·Nano Letters·Christopher M Rodd, Ritesh Agarwal
Dec 10, 2014·Advances in Colloid and Interface Science·Louise DeschênesFrançois Saint-Germain
May 8, 2015·The Journal of Physical Chemistry. B·A LückeU Gerstmann
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Jul 17, 2018·Chemistry : a European Journal·Bruno Ameduri
Mar 7, 2019·Physical Chemistry Chemical Physics : PCCP·William D HongWei-Ren Chen
May 14, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Felipe Tejada AraujoLuciano Caseli
Nov 7, 2019·Materials·Shuichi NagamatsuShyam S Pandey

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