Detail publikace

Grafting of carboxyl groups using CO2/C2H4/Ar pulsed plasma: Theoretical modeling and XPS derivatization

MANAKHOV, A. KIRYUKHANTSEV-KORNEEV, P. MICHLÍČEK, M. PERMYAKOVA, E. DVOŘÁKOVÁ, E. POLČÁK, J. POPOV, Z. VISOTIN, M. SHTANSKY, D.

Originální název

Grafting of carboxyl groups using CO2/C2H4/Ar pulsed plasma: Theoretical modeling and XPS derivatization

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

The grafting of carboxyl groups enhances cell adhesion and can be used for immobilization of different biomolecules onto plasma-treated materials. The process, however, was not well optimized due to lack of clear understanding of the mechanisms of carboxylic group incorporation into plasma and their grafting to polymer surface. In this work the deposition of COOH plasma polymers from CO2/C2H4/Ar pulsed discharge has been studied depending on the gas mixture and duty cycle. We have demonstrated that the CO2/C2H4/Ar plasma with adjustable thickness of COOH functionalized layer and high stability of the grafted functions in water is a better solution for the COOH surface functionalization compared to the thoroughly analyzed CO2 plasma. The concentration of different carbon environments and the density of COOH groups have been measured by using chemical derivatization combined with X-ray photoelectron spectroscopy. It has been found that the CO2/C2H4/Ar plasma mainly contains ester groups (COOC), the COOH/COOC ratio being between 0.03 and 0.08. The water stability of the COOH groups was significantly higher compared to ester environment, so immersing in water for 24 h allowed to increase the COOH/COOC ratio by a factor of 3. The mechanisms of the CO2 molecule attachment to hydrocarbon chains on the polymer surface and those located inside the plasma were modeled using ab initio calculations

Klíčová slova

Plasma deposition; Carboxyl functionalization; XPS; Derivatization; Modeling

Autoři

MANAKHOV, A.; KIRYUKHANTSEV-KORNEEV, P.; MICHLÍČEK, M.; PERMYAKOVA, E.; DVOŘÁKOVÁ, E.; POLČÁK, J.; POPOV, Z.; VISOTIN, M.; SHTANSKY, D.

Vydáno

30. 3. 2018

ISSN

0169-4332

Periodikum

Applied Surface Science

Ročník

435

Číslo

1

Stát

Nizozemsko

Strany od

1220

Strany do

1227

Strany počet

8

BibTex

@article{BUT143273,
  author="Anton {Manakhov} and Philip {Kiryukhantsev-Korneev} and Miroslav {Michlíček} and Elizaveta {Permyakova} and Eva {Dvořáková} and Josef {Polčák} and Zakhar {Popov} and Maxim {Visotin} and Dmitry V. {Shtansky}",
  title="Grafting of carboxyl groups using CO2/C2H4/Ar pulsed plasma: Theoretical modeling and XPS derivatization",
  journal="Applied Surface Science",
  year="2018",
  volume="435",
  number="1",
  pages="1220--1227",
  doi="10.1016/j.apsusc.2017.11.174",
  issn="0169-4332"
}