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Influence of electrochemical copolymerization conditions of 3-methylthiophene and biphenyl on the morphology and nanomechanical properties of the films

机译:3-甲基噻吩和联苯的电化学共聚条件对薄膜形貌和纳米力学性能的影响

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The aim of this work is to synthesize novel 3-methylthiophene (3MTh)/biphenyl (Biph) copolymer films by electropolymerization and study their mechanical properties through nanoindentation. The morphology, the chemical structure as well as the electrical conductivity of the copolymer films depended strongly on the electropolymerization conditions. It was found that the polymer deposition follow an instantaneous, two-dimensional nucleation and growth mechanism leading to homogenous films. The copolymer films had higher Young modulus and nanohardness than poly(3-methylthiophene) (3PMTh), indicating that the incorporation of Biph units within the P3MTh chain leads to a more densely packed structure and a more brittle polymer. (c) 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42575.
机译:这项工作的目的是通过电聚合合成新型3-甲基噻吩(3MTh)/联苯(Biph)共聚物薄膜,并通过纳米压痕研究其机械性能。共聚物膜的形态,化学结构以及导电率在很大程度上取决于电聚合条件。发现聚合物沉积遵循瞬时二维成核和生长机理,从而导致均质膜。该共聚物膜比聚(3-甲基噻吩)(3PMTh)具有更高的杨氏模量和纳米硬度,表明Biph单元在P3MTh链中的结合导致结构更致密的堆积和聚合物的脆性。 (c)2015 Wiley Periodicals,Inc. J. Appl。 Polym。科学2015,132,42575。

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