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Use of remote atmospheric mass spectrometry in atmospheric plasma polymerization of hydrophilic and hydrophobic coatings
Plasma Processes and Polymers ( IF 2.9 ) Pub Date : 2020-03-29 , DOI: 10.1002/ppap.201900250
Jeremy Mertens 1 , Bernard Nisol 2 , Julie Hubert 1 , François Reniers 1
Affiliation  

This paper shows that, to a certain extent, remote atmospheric mass spectrometry can be used to identify signature fragments, which are able to predict the final surface chemistry of plasma‐deposited organic hydrophilic or hydrophobic coatings, to propose polymerization mechanisms and to predict coating contamination. Examples are given for the plasma polymerization of anhydrides and organic acids for polar coatings and for the polymerization of fluorinated precursors for hydrophobic coatings. To predict the final surface chemistry of hydrophilic coatings, we show that by tracking the evolution of the CO+ and CO2+ fragments in the plasma phase, one can deduce the relative amount of polar functions on the final coating surface. Similarly, the change in intensities of the various CFx+ fragments during the plasma polymerization of hydrophobic coatings is correlated with the relative amount of such CFx groups in the coating. For the same coatings, when CO2+, COF+, and COF2+ fragments are detected in the gas phase, the final coating will be contaminated. The possibilities, as well as some limits of this approach, are discussed.

中文翻译:

远程大气质谱法在亲水和疏水涂层的大气等离子体聚合中的应用

本文表明,在一定程度上,远程大气质谱法可用于识别特征性片段,这些片段可预测等离子体沉积的有机亲水或疏水涂层的最终表面化学性质,提出聚合机理并预测涂层污染。给出了用于极性涂料的酸酐和有机酸的等离子体聚合以及用于疏水性涂料的氟化前体的聚合的实例。为了预测亲水性涂层的最终表面化学性质,我们通过跟踪CO +和CO 2 +的演变来表明在等离子体相中的碎片,可以推断出最终涂层表面上极性功能的相对数量。类似地,在疏水涂层的等离子体聚合过程中,各种CF x +片段的强度变化与涂层中此类CF x基团的相对量相关。对于相同的涂层,当在气相中检测到CO 2 +,COF +和COF 2 +碎片时,最终涂层将被污染。讨论了这种方法的可能性以及一些局限性。
更新日期:2020-03-29
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