Scopus
YÖKSİS Eşleşti
Initiation of 2-hydroxyethyl methacrylate polymerization by tert-butyl peroxide in a planar PECVD system
Plasma Processes and Polymers · Nisan 2016
YÖKSİS Kayıtları
Initiation of 2-Hydroxyethyl Methacrylate Polymerization by Tert-Butyl Peroxide in a Planar PECVD System
PLASMA PROCESSES AND POLYMERS · 2016 SCI
DOKTOR ÖĞRETİM ÜYESİ ZAHİDE TOSUN →
Makale Bilgileri
DergiPlasma Processes and Polymers
Yayın TarihiNisan 2016
Cilt / Sayfa13 · 438-446
Scopus ID2-s2.0-84947735776
Özet
This article reports on the deposition conditions and characterization of poly(2-hydroxyethyl methacrylate) thin films grown by initiated plasma enhanced chemical vapor deposition process. The plasma power is inductively coupled into the process chamber with a planar-coil antenna through a quartz window, and the substrate is cooled to promote physical adsorption of monomers on its surface. The introduction of the initiator allowed for film deposition at very low plasma powers (1 W) and greatly improves the deposition rates. Fourier transform infrared (FTIR) and X-ray photoelectron spectroscopy (XPS) analyses confirmed that the chemical functionalities of the monomers are preserved to a good extent during the depositions that were carried out at low plasma powers. The deposition kinetics of PECVD-produced films from HEMA can be tailored by varying the substrate temperature. The apparent activation energies observed from PHEMA deposition kinetics with varying substrate temperatures are observed to be negative, which supports the hypothesis of the free radical polymerization mechanism in the PECVD PHEMA deposition. Poly(2-hydroxyethyl methacrylate) thin films are deposited by initiated PECVD method in a planar system. The introduction of the initiator molecule together with the monomer vapor allows for film depositions at very low plasma powers (1 W) and greatly improves the deposition rates. Kinetics analysis of the polymer deposition rate as a function of the initiator flowrate and the substrate temperature demonstrated that iPECVD process proceed with a free radical reaction mechanism similar to the classical free radical polymerization of vinyl monomers.
Yazarlar (4)
1
Mehmet Gürsoy
2
Tuba Uçar
3
Zahide Tosun
4
Mustafa Karaman
Anahtar Kelimeler
initiator
PECVD
PHEMA
plasma polymer
substrate temperature
Kurumlar
Selçuk Üniversitesi
Selçuklu Turkey
Metrikler
36
Atıf
4
Yazar
5
Anahtar Kelime