TY - JOUR A1 - Swaraj, Sufal A1 - Oran, Umut A1 - Lippitz, Andreas A1 - Unger, Wolfgang T1 - Surface Chemical Analysis of Plasma-Deposited Copolymer Films Prepared from Feed Gas Mixtures of Ethylene or Styrene with Allylamine JF - Plasma processes and polymers N2 - Plasma deposited ethylene/allylamine and styrene/allylamine copolymer films were prepared and analyzed using XPS, NEXAFS and ToF-SIMS. The relative partial flow rate of the each monomer was used as the variable deposition parameter, while the other deposition parameters were kept constant at optimized values for the retention of functional groups. The effect of the variation in the relative partial flow rates of co-monomers on various chemical aspects of the films like unsaturation, nitrogen retention and branching was investigated revealing several non-linear correlations. This observation is taken as an indication for chemical copolymerization processes during film deposition. An attempt is made to compare these non-linear correlations with approaches which have been developed for classic radical copolymerization processes. The aging behavior of these plasma copolymer films was also studied; the results indicated a stabilization against oxidation in comparison to the aging of allylamine plasma homopolymers. KW - Ethylene-allylamine copolymer KW - ESCA KW - NEXAFS KW - Plasma polymerization KW - Styrene-allylamine copolymer KW - Surface characterization KW - TOF-SIMS KW - XPS PY - 2008 DO - https://doi.org/10.1002/ppap.200700106 SN - 1612-8850 SN - 1612-8869 VL - 5 IS - 1 SP - 92 EP - 104 PB - Wiley-VCH Verl. CY - Weinheim AN - OPUS4-16466 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -