期刊
THIN SOLID FILMS
卷 564, 期 -, 页码 186-194出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2014.06.004
关键词
Microplasma copolymerization; Glass microcapillary; Mass loss analysis; Amino functional surface
类别
资金
- EPSRC [EP/I027858/1, EP/E01867X/1]
- University of Sheffield
- Anglian Water Services
- EPSRC [EP/E01867X/1, EP/I027858/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/E01867X/1, EP/I027858/1] Funding Source: researchfish
We report a technique of microplasma copolymerization for depositing a stable amino functional film on the inner walls of a glass microcapillary. The monomers ethylenediamine (EDA), 3 aminopropyltriethoxysilane (APTS) and hexamethyldisiloxane (HMDSO) were used as organic precursors for copolymerization. The ratio of the monomer mixture in the plasma was precisely fed using an original technique of liquid injection and helical mixing. The coatings obtained from EDA-HMDSO were found to be more stable than those produced using EDA and APTS. The films were characterized using X-ray photoelectron, Fourier transform infrared and UV-vis spectroscopy, atomic force microscopy and growth rate measurements. The hydrophobic and hydrophilic characteristics of the films were analyzed through water contact angle and surface free energy measurements. The stability of the coatings formed using this method in aqueous media indicated that they could be utilized for biological and microfluidic applications. (C) 2014 Elsevier B.V. All rights reserved.
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