Rights statement: This is the peer reviewed version of the following article:Saboohi, S, Coad, BR, Short, RD, Michelmore, A, Griesser, HJ. Rational approaches for optimizing chemical functionality of plasma polymers: A case study with ethyl trimethylacetate. Plasma Process Polym. 2021; 18:e2000195. https://doi.org/10.1002/ppap.202000195 which has been published in final form at https://onlinelibrary.wiley.com/doi/10.1002/ppap.202000195 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.
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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Rational approaches for optimizing chemical functionality of plasma polymers
T2 - A case study with ethyl trimethylacetate
AU - Saboohi, S.
AU - Coad, B.R.
AU - Short, R.D.
AU - Michelmore, A.
AU - Griesser, H.J.
N1 - This is the peer reviewed version of the following article:Saboohi, S, Coad, BR, Short, RD, Michelmore, A, Griesser, HJ. Rational approaches for optimizing chemical functionality of plasma polymers: A case study with ethyl trimethylacetate. Plasma Process Polym. 2021; 18:e2000195. https://doi.org/10.1002/ppap.202000195 which has been published in final form at https://onlinelibrary.wiley.com/doi/10.1002/ppap.202000195 This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.
PY - 2021/3/31
Y1 - 2021/3/31
N2 - Improved retention of desirable chemical structures during plasma polymerization requires rational tailoring of plasma-phase conditions. Using ethyl trimethylacetate, we studied the effects of pressure and power on the contribution of intact molecular ions to deposition and retention of ester groups. The abundance of protonated molecular ions in plasmas varies with pressure and power, but the functionality of plasma polymers, assessed by X-ray photoelectron spectroscopy and time-of-flight secondary ion mass spectrometry, is not correlated. Together with high ion flux, the ion energy distribution was found to be a key parameter and needs to be tailored to enable the soft landing of ions on the surface after traversing the sheath. The compromise between the abundance of ions and their energy distribution is optimal near the transition between the α and γ plasma phases. © 2020 Wiley-VCH GmbH
AB - Improved retention of desirable chemical structures during plasma polymerization requires rational tailoring of plasma-phase conditions. Using ethyl trimethylacetate, we studied the effects of pressure and power on the contribution of intact molecular ions to deposition and retention of ester groups. The abundance of protonated molecular ions in plasmas varies with pressure and power, but the functionality of plasma polymers, assessed by X-ray photoelectron spectroscopy and time-of-flight secondary ion mass spectrometry, is not correlated. Together with high ion flux, the ion energy distribution was found to be a key parameter and needs to be tailored to enable the soft landing of ions on the surface after traversing the sheath. The compromise between the abundance of ions and their energy distribution is optimal near the transition between the α and γ plasma phases. © 2020 Wiley-VCH GmbH
KW - ethyl trimethylacetate
KW - mass spectroscopy
KW - plasma polymerization
KW - plasma regimes
KW - plasma transition point
KW - surface functionality
KW - ToF-SIMS
KW - XPS
KW - Ion sources
KW - Ions
KW - Secondary ion mass spectrometry
KW - X ray photoelectron spectroscopy
KW - Chemical functionality
KW - Energy distributions
KW - Ion energy distributions
KW - Phase conditions
KW - Plasma polymers
KW - Protonated molecular ions
KW - Time of flight secondary ion mass spectrometry
KW - Trimethylacetate
KW - Plasma polymerization
U2 - 10.1002/ppap.202000195
DO - 10.1002/ppap.202000195
M3 - Journal article
VL - 18
JO - Plasma Processes and Polymers
JF - Plasma Processes and Polymers
IS - 3
M1 - e2000195
ER -